20 LEGIT Bitcoin Robot and Auto-Trading Bots : 2020 List

NanoTrade

Welcome to [/NanoTrade](https://www.reddit.com/NanoTrade), the best subreddit to discuss price and speculation on the instant, feeless cryptocurrency Nano!
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The Rai Price, Speculation, and Exchange Subreddit

Welcome to [/RaiTrade](https://www.reddit.com/RaiTrade), the best subreddit to discuss price and speculation on the instant, feeless cryptocurrency RaiBlocks!
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RaiBlocks

Join the conversation on a dynamic cryptocurrency that is advancing blockchain technology.
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Bitcoin Newcomers FAQ - Please read!

Welcome to the /Bitcoin Sticky FAQ

You've probably been hearing a lot about Bitcoin recently and are wondering what's the big deal? Most of your questions should be answered by the resources below but if you have additional questions feel free to ask them in the comments.
It all started with the release of the release of Satoshi Nakamoto's whitepaper however that will probably go over the head of most readers so we recommend the following videos for a good starting point for understanding how bitcoin works and a little about its long term potential:
Some other great resources include Lopp.net, the Princeton crypto series and James D'Angelo's Bitcoin 101 Blackboard series.
Some excellent writing on Bitcoin's value proposition and future can be found at the Satoshi Nakamoto Institute.
Some Bitcoin statistics can be found here and here. Developer resources can be found here. Peer-reviewed research papers can be found here.
Potential upcoming protocol improvements and scaling resources here and here.
The number of times Bitcoin was declared dead by the media can be found here (LOL!)

Key properties of Bitcoin

Where can I buy bitcoins?

Bitcoin.org and BuyBitcoinWorldwide.com are helpful sites for beginners. You can buy or sell any amount of bitcoin (even just a few dollars worth) and there are several easy methods to purchase bitcoin with cash, credit card or bank transfer. Some of the more popular resources are below, also check out the bitcoinity exchange resources for a larger list of options for purchases.
Here is a listing of local ATMs. If you would like your paycheck automatically converted to bitcoin use Bitwage.
Note: Bitcoins are valued at whatever market price people are willing to pay for them in balancing act of supply vs demand. Unlike traditional markets, bitcoin markets operate 24 hours per day, 365 days per year. Preev is a useful site that that shows how much various denominations of bitcoin are worth in different currencies. Alternatively you can just Google "1 bitcoin in (your local currency)".

Securing your bitcoins

With bitcoin you can "Be your own bank" and personally secure your bitcoins OR you can use third party companies aka "Bitcoin banks" which will hold the bitcoins for you.
Note: For increased security, use Two Factor Authentication (2FA) everywhere it is offered, including email!
2FA requires a second confirmation code to access your account making it much harder for thieves to gain access. Google Authenticator and Authy are the two most popular 2FA services, download links are below. Make sure you create backups of your 2FA codes.
Google Auth Authy OTP Auth
Android Android N/A
iOS iOS iOS

Watch out for scams

As mentioned above, Bitcoin is decentralized, which by definition means there is no official website or Twitter handle or spokesperson or CEO. However, all money attracts thieves. This combination unfortunately results in scammers running official sounding names or pretending to be an authority on YouTube or social media. Many scammers throughout the years have claimed to be the inventor of Bitcoin. Websites like bitcoin(dot)com and the btc subreddit are active scams. Almost all altcoins (shitcoins) are marketed heavily with big promises but are really just designed to separate you from your bitcoin. So be careful: any resource, including all linked in this document, may in the future turn evil. Don't trust, verify. Also as they say in our community "Not your keys, not your coins".

Where can I spend bitcoins?

Check out spendabit or bitcoin directory for millions of merchant options. Also you can spend bitcoin anywhere visa is accepted with bitcoin debit cards such as the CashApp card. Some other useful site are listed below.
Store Product
Gyft Gift cards for hundreds of retailers including Amazon, Target, Walmart, Starbucks, Whole Foods, CVS, Lowes, Home Depot, iTunes, Best Buy, Sears, Kohls, eBay, GameStop, etc.
Spendabit, Overstock and The Bitcoin Directory Retail shopping with millions of results
ShakePay Generate one time use Visa cards in seconds
NewEgg and Dell For all your electronics needs
Bitwa.la, Coinbills, Piixpay, Bitbill.eu, Bylls, Coins.ph, Bitrefill, LivingRoomofSatoshi, Coinsfer, and more Bill payment
Menufy, Takeaway and Thuisbezorgd NL Takeout delivered to your door
Expedia, Cheapair, Destinia, Abitsky, SkyTours, the Travel category on Gyft and 9flats For when you need to get away
Cryptostorm, Mullvad, and PIA VPN services
Namecheap, Porkbun Domain name registration
Stampnik Discounted USPS Priority, Express, First-Class mail postage
Coinmap and AirBitz are helpful to find local businesses accepting bitcoins. A good resource for UK residents is at wheretospendbitcoins.co.uk.
There are also lots of charities which accept bitcoin donations.

Merchant Resources

There are several benefits to accepting bitcoin as a payment option if you are a merchant;
If you are interested in accepting bitcoin as a payment method, there are several options available;

Can I mine bitcoin?

Mining bitcoins can be a fun learning experience, but be aware that you will most likely operate at a loss. Newcomers are often advised to stay away from mining unless they are only interested in it as a hobby similar to folding at home. If you want to learn more about mining you can read more here. Still have mining questions? The crew at /BitcoinMining would be happy to help you out.
If you want to contribute to the bitcoin network by hosting the blockchain and propagating transactions you can run a full node using this setup guide. If you would prefer to keep it simple there are several good options. You can view the global node distribution here.

Earning bitcoins

Just like any other form of money, you can also earn bitcoins by being paid to do a job.
Site Description
WorkingForBitcoins, Bitwage, Cryptogrind, Coinality, Bitgigs, /Jobs4Bitcoins, BitforTip, Rein Project Freelancing
Lolli Earn bitcoin when you shop online!
OpenBazaar, Purse.io, Bitify, /Bitmarket, 21 Market Marketplaces
/GirlsGoneBitcoin NSFW Adult services
A-ads, Coinzilla.io Advertising
You can also earn bitcoins by participating as a market maker on JoinMarket by allowing users to perform CoinJoin transactions with your bitcoins for a small fee (requires you to already have some bitcoins.

Bitcoin-Related Projects

The following is a short list of ongoing projects that might be worth taking a look at if you are interested in current development in the bitcoin space.
Project Description
Lightning Network Second layer scaling
Blockstream, Rootstock and Drivechain Sidechains
Hivemind and Augur Prediction markets
Tierion and Factom Records & Titles on the blockchain
BitMarkets, DropZone, Beaver and Open Bazaar Decentralized markets
JoinMarket and Wasabi Wallet CoinJoin implementation
Coinffeine and Bisq Decentralized bitcoin exchanges
Keybase Identity & Reputation management
Abra Global P2P money transmitter network
Bitcore Open source Bitcoin javascript library

Bitcoin Units

One Bitcoin is quite large (hundreds of £/$/€) so people often deal in smaller units. The most common subunits are listed below:
Unit Symbol Value Info
bitcoin BTC 1 bitcoin one bitcoin is equal to 100 million satoshis
millibitcoin mBTC 1,000 per bitcoin used as default unit in recent Electrum wallet releases
bit bit 1,000,000 per bitcoin colloquial "slang" term for microbitcoin (μBTC)
satoshi sat 100,000,000 per bitcoin smallest unit in bitcoin, named after the inventor
For example, assuming an arbitrary exchange rate of $10000 for one Bitcoin, a $10 meal would equal:
For more information check out the Bitcoin units wiki.
Still have questions? Feel free to ask in the comments below or stick around for our weekly Mentor Monday thread. If you decide to post a question in /Bitcoin, please use the search bar to see if it has been answered before, and remember to follow the community rules outlined on the sidebar to receive a better response. The mods are busy helping manage our community so please do not message them unless you notice problems with the functionality of the subreddit.
Note: This is a community created FAQ. If you notice anything missing from the FAQ or that requires clarification you can edit it here and it will be included in the next revision pending approval.
Welcome to the Bitcoin community and the new decentralized economy!
submitted by BitcoinFan7 to Bitcoin [link] [comments]

What you need to know (PART #1: FOMO Psychology) - Bull Run 2020: Exo-Affects

The crypto-market has entered a new bull cycle, and it seems like these bullish events are starting with Decentralized Finance (DeFi) cryptocurrencies.

A little background about myself:
First, let me put this out there. I am no one special. I am not different than anyone here. I'll keep it short. I've been around crypto for a while. I do not day trade. I buy when the market hits the floor, and come back and sell when things start to look suspiciously bullish. It's easier said than done. I know. But honestly, I'm sure many of you can relate. Regardless of fundamentals, when you start to see a certain type of behavior in the market, you get this little spidey sense telling you something. So here is mine.

2020 Bull Event:
Many of you have been noticing the crypto market in an uptrend. Especially with the not-so-new buzz word DeFi (stands for Decentralized Finance). So we are currently witnessing some impressive uptrend price movement with Chainlink ($LINK), and its bullish cycle has started an exo-affect on other coins in the DeFi market. (I'm going to use the word "exo-affect" to describe domino affects of post-price movements).

Now we are noticing other coins such as Maker ($MKR), Compound ($COMP), and Aave ($LEND). Earlier I said I am going to disregard fundamentals slightly. I'll tell you why. Fundamentals are great, and I use them all the time. But with the current market behavior, it is crucial to use psychological market behavior since FOMO is kicking in with only the DeFi related cryptocurrencies.

What do you notice about the recent three that started pumping? Two out of three of the cryptocurrencies literally have two buzz words related to decentralized finance, such as compound and lend. Maker is known, so the crowd knows it already. Easy to distinguish, and the people are just jumping on them. You have sites like coinmarketcap and coingecko making pages dedicated to DeFi to help you narrow it down.

So is it done? Did you miss the bandwagon?
Honestly, no one knows, and I certainly do not know. But Considering some of the coins hitting ATH, and Chainlink has been on a bullish run for a while. I would say there are more opportunities still. If you stick to the psychological behaviors, I feel the price will play a factor. As stupid as this sounds, people will see low prices as "cheap prices", and think it is an opportunity. I know that is entirely dumb, but we saw it happen in the 2017/2018 bull run.

So which DeFi coins people have not noticed yet?
There are honestly several coins that might start pumping when considering the psychological behaviors I mentioned above. FOMOers might see attraction in coins such Terra ($LUNA), Request ($REQ), and 0x ($ZRX). These are just some that fit the "low-price" psychological criteria and haven't reached highs like the others.

But once the FOMOers start noticing, most of have been pumped or people that made money on previous pumps. They will start jumping into the ones that are priced higher such as Augur ($REP).

I am not going to go through all of them. Just check out coingecko or coinmarkets section for DeFi and go through the list.

Yes, I know it all sounds dumb. But when the market is irrational, who do you think it making those irrational decisions?

When you look at things like Ethereum, it started its gradual momentum in an uptrend. Why isn't it pumping hard like the rest? It is more liquid and holds a higher market share than the rest. Those Defi coins are pumping hard because their books are illiquid. But once the stages I mentioned above are complete, trading will flow into Ethereum, Bitcoin and other cryptocurrencies. So the rest will have its moment after. If everything starts flowing like the way I mention in this post, then I might make another post for the next phase of the bubble.

Don't take anything I am saying here seriously, and make sure you do your own damn research before making any investment decisions!
submitted by NEO-ETH-Domination to CryptoCurrency [link] [comments]

Scaling Reddit Community Points with Arbitrum Rollup: a piece of cake

Scaling Reddit Community Points with Arbitrum Rollup: a piece of cake
https://preview.redd.it/b80c05tnb9e51.jpg?width=2550&format=pjpg&auto=webp&s=850282c1a3962466ed44f73886dae1c8872d0f31
Submitted for consideration to The Great Reddit Scaling Bake-Off
Baked by the pastry chefs at Offchain Labs
Please send questions or comments to [[email protected] ](mailto:[email protected])
1. Overview
We're excited to submit Arbitrum Rollup for consideration to The Great Reddit Scaling Bake-Off. Arbitrum Rollup is the only Ethereum scaling solution that supports arbitrary smart contracts without compromising on Ethereum's security or adding points of centralization. For Reddit, this means that Arbitrum can not only scale the minting and transfer of Community Points, but it can foster a creative ecosystem built around Reddit Community Points enabling points to be used in a wide variety of third party applications. That's right -- you can have your cake and eat it too!
Arbitrum Rollup isn't just Ethereum-style. Its Layer 2 transactions are byte-for-byte identical to Ethereum, which means Ethereum users can continue to use their existing addresses and wallets, and Ethereum developers can continue to use their favorite toolchains and development environments out-of-the-box with Arbitrum. Coupling Arbitrum’s tooling-compatibility with its trustless asset interoperability, Reddit not only can scale but can onboard the entire Ethereum community at no cost by giving them the same experience they already know and love (well, certainly know).
To benchmark how Arbitrum can scale Reddit Community Points, we launched the Reddit contracts on an Arbitrum Rollup chain. Since Arbitrum provides full Solidity support, we didn't have to rewrite the Reddit contracts or try to mimic their functionality using an unfamiliar paradigm. Nope, none of that. We launched the Reddit contracts unmodified on Arbitrum Rollup complete with support for minting and distributing points. Like every Arbitrum Rollup chain, the chain included a bridge interface in which users can transfer Community Points or any other asset between the L1 and L2 chains. Arbitrum Rollup chains also support dynamic contract loading, which would allow third-party developers to launch custom ecosystem apps that integrate with Community Points on the very same chain that runs the Reddit contracts.
1.1 Why Ethereum
Perhaps the most exciting benefit of distributing Community Points using a blockchain is the ability to seamlessly port points to other applications and use them in a wide variety of contexts. Applications may include simple transfers such as a restaurant that allows Redditors to spend points on drinks. Or it may include complex smart contracts -- such as placing Community Points as a wager for a multiparty game or as collateral in a financial contract.
The common denominator between all of the fun uses of Reddit points is that it needs a thriving ecosystem of both users and developers, and the Ethereum blockchain is perhaps the only smart contract platform with significant adoption today. While many Layer 1 blockchains boast lower cost or higher throughput than the Ethereum blockchain, more often than not, these attributes mask the reality of little usage, weaker security, or both.
Perhaps another platform with significant usage will rise in the future. But today, Ethereum captures the mindshare of the blockchain community, and for Community Points to provide the most utility, the Ethereum blockchain is the natural choice.
1.2 Why Arbitrum
While Ethereum's ecosystem is unmatched, the reality is that fees are high and capacity is too low to support the scale of Reddit Community Points. Enter Arbitrum. Arbitrum Rollup provides all of the ecosystem benefits of Ethereum, but with orders of magnitude more capacity and at a fraction of the cost of native Ethereum smart contracts. And most of all, we don't change the experience from users. They continue to use the same wallets, addresses, languages, and tools.
Arbitrum Rollup is not the only solution that can scale payments, but it is the only developed solution that can scale both payments and arbitrary smart contracts trustlessly, which means that third party users can build highly scalable add-on apps that can be used without withdrawing money from the Rollup chain. If you believe that Reddit users will want to use their Community Points in smart contracts--and we believe they will--then it makes the most sense to choose a single scaling solution that can support the entire ecosystem, eliminating friction for users.
We view being able to run smart contracts in the same scaling solution as fundamentally critical since if there's significant demand in running smart contracts from Reddit's ecosystem, this would be a load on Ethereum and would itself require a scaling solution. Moreover, having different scaling solutions for the minting/distribution/spending of points and for third party apps would be burdensome for users as they'd have to constantly shuffle their Points back and forth.
2. Arbitrum at a glance
Arbitrum Rollup has a unique value proposition as it offers a combination of features that no other scaling solution achieves. Here we highlight its core attributes.
Decentralized. Arbitrum Rollup is as decentralized as Ethereum. Unlike some other Layer 2 scaling projects, Arbitrum Rollup doesn't have any centralized components or centralized operators who can censor users or delay transactions. Even in non-custodial systems, centralized components provide a risk as the operators are generally incentivized to increase their profit by extracting rent from users often in ways that severely degrade user experience. Even if centralized operators are altruistic, centralized components are subject to hacking, coercion, and potential liability.
Massive Scaling. Arbitrum achieves order of magnitude scaling over Ethereum's L1 smart contracts. Our software currently supports 453 transactions-per-second for basic transactions (at 1616 Ethereum gas per tx). We have a lot of room left to optimize (e.g. aggregating signatures), and over the next several months capacity will increase significantly. As described in detail below, Arbitrum can easily support and surpass Reddit's anticipated initial load, and its capacity will continue to improve as Reddit's capacity needs grow.
Low cost. The cost of running Arbitrum Rollup is quite low compared to L1 Ethereum and other scaling solutions such as those based on zero-knowledge proofs. Layer 2 fees are low, fixed, and predictable and should not be overly burdensome for Reddit to cover. Nobody needs to use special equipment or high-end machines. Arbitrum requires validators, which is a permissionless role that can be run on any reasonable on-line machine. Although anybody can act as a validator, in order to protect against a “tragedy of the commons” and make sure reputable validators are participating, we support a notion of “invited validators” that are compensated for their costs. In general, users pay (low) fees to cover the invited validators’ costs, but we imagine that Reddit may cover this cost for its users. See more on the costs and validator options below.
Ethereum Developer Experience. Not only does Arbitrum support EVM smart contracts, but the developer experience is identical to that of L1 Ethereum contracts and fully compatible with Ethereum tooling. Developers can port existing Solidity apps or write new ones using their favorite and familiar toolchains (e.g. Truffle, Buidler). There are no new languages or coding paradigms to learn.
Ethereum wallet compatibility. Just as in Ethereum, Arbitrum users need only hold keys, but do not have to store any coin history or additional data to protect or access their funds. Since Arbitrum transactions are semantically identical to Ethereum L1 transactions, existing Ethereum users can use their existing Ethereum keys with their existing wallet software such as Metamask.
Token interoperability. Users can easily transfer their ETH, ERC-20 and ERC-721 tokens between Ethereum and the Arbitrum Rollup chain. As we explain in detail below, it is possible to mint tokens in L2 that can subsequently be withdrawn and recognized by the L1 token contract.
Fast finality. Transactions complete with the same finality time as Ethereum L1 (and it's possible to get faster finality guarantees by trading away trust assumptions; see the Arbitrum Rollup whitepaper for details).
Non-custodial. Arbitrum Rollup is a non-custodial scaling solution, so users control their funds/points and neither Reddit nor anyone else can ever access or revoke points held by users.
Censorship Resistant. Since it's completely decentralized, and the Arbitrum protocol guarantees progress trustlessly, Arbitrum Rollup is just as censorship-proof as Ethereum.
Block explorer. The Arbitrum Rollup block explorer allows users to view and analyze transactions on the Rollup chain.
Limitations
Although this is a bake-off, we're not going to sugar coat anything. Arbitrum Rollup, like any Optimistic Rollup protocol, does have one limitation, and that's the delay on withdrawals.
As for the concrete length of the delay, we've done a good deal of internal modeling and have blogged about this as well. Our current modeling suggests a 3-hour delay is sufficient (but as discussed in the linked post there is a tradeoff space between the length of the challenge period and the size of the validators’ deposit).
Note that this doesn't mean that the chain is delayed for three hours. Arbitrum Rollup supports pipelining of execution, which means that validators can keep building new states even while previous ones are “in the pipeline” for confirmation. As the challenge delays expire for each update, a new state will be confirmed (read more about this here).
So activity and progress on the chain are not delayed by the challenge period. The only thing that's delayed is the consummation of withdrawals. Recall though that any single honest validator knows immediately (at the speed of L1 finality) which state updates are correct and can guarantee that they will eventually be confirmed, so once a valid withdrawal has been requested on-chain, every honest party knows that the withdrawal will definitely happen. There's a natural place here for a liquidity market in which a validator (or someone who trusts a validator) can provide withdrawal loans for a small interest fee. This is a no-risk business for them as they know which withdrawals will be confirmed (and can force their confirmation trustlessly no matter what anyone else does) but are just waiting for on-chain finality.
3. The recipe: How Arbitrum Rollup works
For a description of the technical components of Arbitrum Rollup and how they interact to create a highly scalable protocol with a developer experience that is identical to Ethereum, please refer to the following documents:
Arbitrum Rollup Whitepaper
Arbitrum academic paper (describes a previous version of Arbitrum)
4. Developer docs and APIs
For full details about how to set up and interact with an Arbitrum Rollup chain or validator, please refer to our developer docs, which can be found at https://developer.offchainlabs.com/.
Note that the Arbitrum version described on that site is older and will soon be replaced by the version we are entering in Reddit Bake-Off, which is still undergoing internal testing before public release.
5. Who are the validators?
As with any Layer 2 protocol, advancing the protocol correctly requires at least one validator (sometimes called block producers) that is honest and available. A natural question is: who are the validators?
Recall that the validator set for an Arbitrum chain is open and permissionless; anyone can start or stop validating at will. (A useful analogy is to full nodes on an L1 chain.) But we understand that even though anyone can participate, Reddit may want to guarantee that highly reputable nodes are validating their chain. Reddit may choose to validate the chain themselves and/or hire third-party validators.To this end, we have begun building a marketplace for validator-for-hire services so that dapp developers can outsource validation services to reputable nodes with high up-time. We've announced a partnership in which Chainlink nodes will provide Arbitrum validation services, and we expect to announce more partnerships shortly with other blockchain infrastructure providers.
Although there is no requirement that validators are paid, Arbitrum’s economic model tracks validators’ costs (e.g. amount of computation and storage) and can charge small fees on user transactions, using a gas-type system, to cover those costs. Alternatively, a single party such as Reddit can agree to cover the costs of invited validators.
6. Reddit Contract Support
Since Arbitrum contracts and transactions are byte-for-byte compatible with Ethereum, supporting the Reddit contracts is as simple as launching them on an Arbitrum chain.
Minting. Arbitrum Rollup supports hybrid L1/L2 tokens which can be minted in L2 and then withdrawn onto the L1. An L1 contract at address A can make a special call to the EthBridge which deploys a "buddy contract" to the same address A on an Arbitrum chain. Since it's deployed at the same address, users can know that the L2 contract is the authorized "buddy" of the L1 contract on the Arbitrum chain.
For minting, the L1 contract is a standard ERC-20 contract which mints and burns tokens when requested by the L2 contract. It is paired with an ERC-20 contract in L2 which mints tokens based on whatever programmer provided minting facility is desired and burns tokens when they are withdrawn from the rollup chain. Given this base infrastructure, Arbitrum can support any smart contract based method for minting tokens in L2, and indeed we directly support Reddit's signature/claim based minting in L2.
Batch minting. What's better than a mint cookie? A whole batch! In addition to supporting Reddit’s current minting/claiming scheme, we built a second minting design, which we believe outperforms the signature/claim system in many scenarios.
In the current system, Reddit periodically issues signed statements to users, who then take those statements to the blockchain to claim their tokens. An alternative approach would have Reddit directly submit the list of users/amounts to the blockchain and distribute the tokens to the users without the signature/claim process.
To optimize the cost efficiency of this approach, we designed an application-specific compression scheme to minimize the size of the batch distribution list. We analyzed the data from Reddit's previous distributions and found that the data is highly compressible since token amounts are small and repeated, and addresses appear multiple times. Our function groups transactions by size, and replaces previously-seen addresses with a shorter index value. We wrote client code to compress the data, wrote a Solidity decompressing function, and integrated that function into Reddit’s contract running on Arbitrum.
When we ran the compression function on the previous Reddit distribution data, we found that we could compress batched minting data down to to 11.8 bytes per minting event (averaged over a 6-month trace of Reddit’s historical token grants)compared with roughly 174 bytes of on-chain data needed for the signature claim approach to minting (roughly 43 for an RLP-encoded null transaction + 65 for Reddit's signature + 65 for the user's signature + roughly 8 for the number of Points) .
The relative benefit of the two approaches with respect to on-chain call data cost depends on the percentage of users that will actually claim their tokens on chain. With the above figures, batch minting will be cheaper if roughly 5% of users redeem their claims. We stress that our compression scheme is not Arbitrum-specific and would be beneficial in any general-purpose smart contract platform.
8. Benchmarks and costs
In this section, we give the full costs of operating the Reddit contracts on an Arbitrum Rollup chain including the L1 gas costs for the Rollup chain, the costs of computation and storage for the L2 validators as well as the capital lockup requirements for staking.
Arbitrum Rollup is still on testnet, so we did not run mainnet benchmarks. Instead, we measured the L1 gas cost and L2 workload for Reddit operations on Arbitrum and calculated the total cost assuming current Ethereum gas prices. As noted below in detail, our measurements do not assume that Arbitrum is consuming the entire capacity of Ethereum. We will present the details of our model now, but for full transparency you can also play around with it yourself and adjust the parameters, by copying the spreadsheet found here.
Our cost model is based on measurements of Reddit’s contracts, running unmodified (except for the addition of a batch minting function) on Arbitrum Rollup on top of Ethereum.
On the distribution of transactions and frequency of assertions. Reddit's instructions specify the following minimum parameters that submissions should support:
Over a 5 day period, your scaling PoC should be able to handle:
  • 100,000 point claims (minting & distributing points)
  • 25,000 subscriptions
  • 75,000 one-off points burning
  • 100,000 transfers
We provide the full costs of operating an Arbitrum Rollup chain with this usage under the assumption that tokens are minted or granted to users in batches, but other transactions are uniformly distributed over the 5 day period. Unlike some other submissions, we do not make unrealistic assumptions that all operations can be submitted in enormous batches. We assume that batch minting is done in batches that use only a few percent on an L1 block’s gas, and that other operations come in evenly over time and are submitted in batches, with one batch every five minutes to keep latency reasonable. (Users are probably already waiting for L1 finality, which takes at least that long to achieve.)
We note that assuming that there are only 300,000 transactions that arrive uniformly over the 5 day period will make our benchmark numbers lower, but we believe that this will reflect the true cost of running the system. To see why, say that batches are submitted every five minutes (20 L1 blocks) and there's a fixed overhead of c bytes of calldata per batch, the cost of which will get amortized over all transactions executed in that batch. Assume that each individual transaction adds a marginal cost of t. Lastly assume the capacity of the scaling system is high enough that it can support all of Reddit's 300,000 transactions within a single 20-block batch (i.e. that there is more than c + 300,000*t byes of calldata available in 20 blocks).
Consider what happens if c, the per-batch overhead, is large (which it is in some systems, but not in Arbitrum). In the scenario that transactions actually arrive at the system's capacity and each batch is full, then c gets amortized over 300,000 transactions. But if we assume that the system is not running at capacity--and only receives 300,000 transactions arriving uniformly over 5 days-- then each 20-block assertion will contain about 200 transactions, and thus each transaction will pay a nontrivial cost due to c.
We are aware that other proposals presented scaling numbers assuming that 300,000 transactions arrived at maximum capacity and was executed in a single mega-transaction, but according to our estimates, for at least one such report, this led to a reported gas price that was 2-3 orders of magnitude lower than it would have been assuming uniform arrival. We make more realistic batching assumptions, and we believe Arbitrum compares well when batch sizes are realistic.
Our model. Our cost model includes several sources of cost:
  • L1 gas costs: This is the cost of posting transactions as calldata on the L1 chain, as well as the overhead associated with each batch of transactions, and the L1 cost of settling transactions in the Arbitrum protocol.
  • Validator’s staking costs: In normal operation, one validator will need to be staked. The stake is assumed to be 0.2% of the total value of the chain (which is assumed to be $1 per user who is eligible to claim points). The cost of staking is the interest that could be earned on the money if it were not staked.
  • Validator computation and storage: Every validator must do computation to track the chain’s processing of transactions, and must maintain storage to keep track of the contracts’ EVM storage. The cost of computation and storage are estimated based on measurements, with the dollar cost of resources based on Amazon Web Services pricing.
It’s clear from our modeling that the predominant cost is for L1 calldata. This will probably be true for any plausible rollup-based system.
Our model also shows that Arbitrum can scale to workloads much larger than Reddit’s nominal workload, without exhausting L1 or L2 resources. The scaling bottleneck will ultimately be calldata on the L1 chain. We believe that cost could be reduced substantially if necessary by clever encoding of data. (In our design any compression / decompression of L2 transaction calldata would be done by client software and L2 programs, never by an L1 contract.)
9. Status of Arbitrum Rollup
Arbitrum Rollup is live on Ethereum testnet. All of the code written to date including everything included in the Reddit demo is open source and permissively licensed under the Apache V2 license. The first testnet version of Arbitrum Rollup was released on testnet in February. Our current internal version, which we used to benchmark the Reddit contracts, will be released soon and will be a major upgrade.
Both the Arbitrum design as well as the implementation are heavily audited by independent third parties. The Arbitrum academic paper was published at USENIX Security, a top-tier peer-reviewed academic venue. For the Arbitrum software, we have engaged Trail of Bits for a security audit, which is currently ongoing, and we are committed to have a clean report before launching on Ethereum mainnet.
10. Reddit Universe Arbitrum Rollup Chain
The benchmarks described in this document were all measured using the latest internal build of our software. When we release the new software upgrade publicly we will launch a Reddit Universe Arbitrum Rollup chain as a public demo, which will contain the Reddit contracts as well as a Uniswap instance and a Connext Hub, demonstrating how Community Points can be integrated into third party apps. We will also allow members of the public to dynamically launch ecosystem contracts. We at Offchain Labs will cover the validating costs for the Reddit Universe public demo.
If the folks at Reddit would like to evaluate our software prior to our public demo, please email us at [email protected] and we'd be more than happy to provide early access.
11. Even more scaling: Arbitrum Sidechains
Rollups are an excellent approach to scaling, and we are excited about Arbitrum Rollup which far surpasses Reddit's scaling needs. But looking forward to Reddit's eventual goal of supporting hundreds of millions of users, there will likely come a time when Reddit needs more scaling than any Rollup protocol can provide.
While Rollups greatly reduce costs, they don't break the linear barrier. That is, all transactions have an on-chain footprint (because all calldata must be posted on-chain), albeit a far smaller one than on native Ethereum, and the L1 limitations end up being the bottleneck for capacity and cost. Since Ethereum has limited capacity, this linear use of on-chain resources means that costs will eventually increase superlinearly with traffic.
The good news is that we at Offchain Labs have a solution in our roadmap that can satisfy this extreme-scaling setting as well: Arbitrum AnyTrust Sidechains. Arbitrum Sidechains are similar to Arbitrum Rollup, but deviate in that they name a permissioned set of validators. When a chain’s validators agree off-chain, they can greatly reduce the on-chain footprint of the protocol and require almost no data to be put on-chain. When validators can't reach unanimous agreement off-chain, the protocol reverts to Arbitrum Rollup. Technically, Arbitrum Sidechains can be viewed as a hybrid between state channels and Rollup, switching back and forth as necessary, and combining the performance and cost that state channels can achieve in the optimistic case, with the robustness of Rollup in other cases. The core technical challenge is how to switch seamlessly between modes and how to guarantee that security is maintained throughout.
Arbitrum Sidechains break through this linear barrier, while still maintaining a high level of security and decentralization. Arbitrum Sidechains provide the AnyTrust guarantee, which says that as long as any one validator is honest and available (even if you don't know which one will be), the L2 chain is guaranteed to execute correctly according to its code and guaranteed to make progress. Unlike in a state channel, offchain progress does not require unanimous consent, and liveness is preserved as long as there is a single honest validator.
Note that the trust model for Arbitrum Sidechains is much stronger than for typical BFT-style chains which introduce a consensus "voting" protocols among a small permissioned group of validators. BFT-based protocols require a supermajority (more than 2/3) of validators to agree. In Arbitrum Sidechains, by contrast, all you need is a single honest validator to achieve guaranteed correctness and progress. Notice that in Arbitrum adding validators strictly increases security since the AnyTrust guarantee provides correctness as long as any one validator is honest and available. By contrast, in BFT-style protocols, adding nodes can be dangerous as a coalition of dishonest nodes can break the protocol.
Like Arbitrum Rollup, the developer and user experiences for Arbitrum Sidechains will be identical to that of Ethereum. Reddit would be able to choose a large and diverse set of validators, and all that they would need to guarantee to break through the scaling barrier is that a single one of them will remain honest.
We hope to have Arbitrum Sidechains in production in early 2021, and thus when Reddit reaches the scale that surpasses the capacity of Rollups, Arbitrum Sidechains will be waiting and ready to help.
While the idea to switch between channels and Rollup to get the best of both worlds is conceptually simple, getting the details right and making sure that the switch does not introduce any attack vectors is highly non-trivial and has been the subject of years of our research (indeed, we were working on this design for years before the term Rollup was even coined).
12. How Arbitrum compares
We include a comparison to several other categories as well as specific projects when appropriate. and explain why we believe that Arbitrum is best suited for Reddit's purposes. We focus our attention on other Ethereum projects.
Payment only Rollups. Compared to Arbitrum Rollup, ZK-Rollups and other Rollups that only support token transfers have several disadvantages:
  • As outlined throughout the proposal, we believe that the entire draw of Ethereum is in its rich smart contracts support which is simply not achievable with today's zero-knowledge proof technology. Indeed, scaling with a ZK-Rollup will add friction to the deployment of smart contracts that interact with Community Points as users will have to withdraw their coins from the ZK-Rollup and transfer them to a smart contract system (like Arbitrum). The community will be best served if Reddit builds on a platform that has built-in, frictionless smart-contract support.
  • All other Rollup protocols of which we are aware employ a centralized operator. While it's true that users retain custody of their coins, the centralized operator can often profit from censoring, reordering, or delaying transactions. A common misconception is that since they're non-custodial protocols, a centralized sequencer does not pose a risk but this is incorrect as the sequencer can wreak havoc or shake down users for side payments without directly stealing funds.
  • Sidechain type protocols can eliminate some of these issues, but they are not trustless. Instead, they require trust in some quorum of a committee, often requiring two-third of the committee to be honest, compared to rollup protocols like Arbitrum that require only a single honest party. In addition, not all sidechain type protocols have committees that are diverse, or even non-centralized, in practice.
  • Plasma-style protocols have a centralized operator and do not support general smart contracts.
13. Concluding Remarks
While it's ultimately up to the judges’ palate, we believe that Arbitrum Rollup is the bakeoff choice that Reddit kneads. We far surpass Reddit's specified workload requirement at present, have much room to optimize Arbitrum Rollup in the near term, and have a clear path to get Reddit to hundreds of millions of users. Furthermore, we are the only project that gives developers and users the identical interface as the Ethereum blockchain and is fully interoperable and tooling-compatible, and we do this all without any new trust assumptions or centralized components.
But no matter how the cookie crumbles, we're glad to have participated in this bake-off and we thank you for your consideration.
About Offchain Labs
Offchain Labs, Inc. is a venture-funded New York company that spun out of Princeton University research, and is building the Arbitrum platform to usher in the next generation of scalable, interoperable, and compatible smart contracts. Offchain Labs is backed by Pantera Capital, Compound VC, Coinbase Ventures, and others.
Leadership Team
Ed Felten
Ed Felten is Co-founder and Chief Scientist at Offchain Labs. He is on leave from Princeton University, where he is the Robert E. Kahn Professor of Computer Science and Public Affairs. From 2015 to 2017 he served at the White House as Deputy United States Chief Technology Officer and senior advisor to the President. He is an ACM Fellow and member of the National Academy of Engineering. Outside of work, he is an avid runner, cook, and L.A. Dodgers fan.
Steven Goldfeder
Steven Goldfeder is Co-founder and Chief Executive Officer at Offchain Labs. He holds a PhD from Princeton University, where he worked at the intersection of cryptography and cryptocurrencies including threshold cryptography, zero-knowledge proof systems, and post-quantum signatures. He is a co-author of Bitcoin and Cryptocurrency Technologies, the leading textbook on cryptocurrencies, and he has previously worked at Google and Microsoft Research, where he co-invented the Picnic signature algorithm. When not working, you can find Steven spending time with his family, taking a nature walk, or twisting balloons.
Harry Kalodner
Harry Kalodner is Co-founder and Chief Technology Officer at Offchain Labs where he leads the engineering team. Before the company he attended Princeton as a Ph.D candidate where his research explored economics, anonymity, and incentive compatibility of cryptocurrencies, and he also has worked at Apple. When not up at 3:00am writing code, Harry occasionally sleeps.
submitted by hkalodner to ethereum [link] [comments]

I have a great idea for a new bitcoin service: Bitcoin Cash.

I'll be providing an API to allow users to exchange their bitcoin for Bcash, and then use those Bcash to pay for goods and services. There's no trading fees, and transactions are instant. For those who want to trade Bcash for bitcoin, I'll be taking their Bitcoin and converting it to Bcash. The conversion fee is 1% on the value of Bcash to Bitcoin, and then 0.5% for the value of Bitcoin to Bcash.
I'm excited about this, and would love to hear from you guys who have good stories about crypto-to-crypto exchange, or the value of their Bcash. I'd be happy to host some of these stories on my website, and I'll be creating a subreddit for those stories to be linked to on the site.
To give you guys an idea of what kind of things I can do with this API, here is the full list of APIs that I have:
Also, if you have any questions, I'd be happy to help anyone with any questions, even if it's just to ask them. I'd love to have a community of cryptocurrency enthusiasts to talk with and collaborate on this project.
Thanks for reading, and I'd love to talk to you guys about anything related to this project.
submitted by cryptocurrencyGPT2 to SubSimulatorGPT2 [link] [comments]

Updated list of Global Beermoney opportunities (+180!) - June 2020

Updated list of Global Beermoney opportunities (+180!) - June 2020

Introduction

The current, and now previous, Beermoney Global list started nearly 5 years ago. It’s been updated and has grown over all that time, but it also became a hassle to keep current. It was time to build a new list from scratch based on my experience in the Beermoney world over all these years and all the contributions all of you have been making in this sub.
The lists consist of opportunities that are available in at least one country that is not the US. This means there are sites which only work in Canada or the UK. There’s sites which are open to the whole world, but this does not mean everyone can really earn something on it. It’s all still very demographic and therefore location dependent. This list should give you a starting point to try out and find what works for you. I’m not using everything myself as I prefer to focus on a few, so not all are tested by me. They are found in this sub, other subreddits and other resources where people claim to have success.
I’ve chosen the format of a simple table with the bare minimum of information to keep things clean. It includes a link, how you earn, personal payment proof if available and sign-up bonus codes if applicable. Some of these bonuses are also one-time use codes specifically made for this sub! For the ones I don’t have payment proof (yet) feel free to provide some as a comment or via modmail so others know it’s legit. I am working on detailed instructions for each method that I personally use which will include things like cashout minimum, cashout options, tips & tricks,... For now I’ve split things up based on the type of earning like passive or mobile. Because of this there’s sometimes an overlap as some are both passive and on mobile or both earning crypto and a GPT (Get Paid To) website.
The lists are obviously not complete so I invite you to keep posting new ones in the sub, as a comment to this post, or in modmail. Especially if you have sites or apps which work for one single specific country I can start building a list, just like I did for The Netherlands and Belgium. If you recognize things which are in fact scams or not worth it let me know as well.

Beermoney opportunities

Get Paid To (Surveys, tasks, offers, videos, clicking links, play games, searching)
Register here How to earn Payment proof Sign-up bonus code
ySense - The best global site Surveys, tasks, offers, videos Paypal /
PrizeRebel Surveys, tasks, offers, videos Paypal Enter code 'beermoneyglobal'
SerpClix Google searching Paypal /
Swagbucks & SwagButton Surveys, tasks, offers, videos, shopping & cashback, games, apps Paypal /
GG2U Surveys, tasks, offers, videos Pending $1.00 if register here
Keep Rewarding Surveys, tasks, offers, videos, PTC Pending $0.25 if register here
Ebesucher Surfing, reading mails Bank transfer /
Reward XP Surveys, tasks, offers, videos Paypal $0.50 if register here
Gain.gg Surveys, tasks, offers, videos Paypal $0.10 if register here
Timebucks Surveys, tasks, offers, videos, Tik Tok, Shopping Pending $1.00 if register here
GamerMine Surveys, offers, videos, tasks, Pending $1.00 if register here
Gamehag Tasks, offers, play games, post on forum, writing Pending /
BTCSurveys Surveys Pending /
FruitLab Watch & upload video game clips Pending 100 pips if register here
Clickworker Transcripts, tasks, UHRS (categorizing), surveys Paypal /
FreeSkins Surveys, offers, tasks, videos Pending 100 coins if register here
iRazoo Games, surveys, videos, offers, apps Pending Enter code 'AK7DB2' for 500 points when signing up
EarnCrypto Data entry, surveys, offers, tasks, videos, games, apps Pending /
Blockreward Apps, surveys, videos, tasks, offers Pending $2.00 if register here and earn 20000b + $2.00 if earn 10000b within 30 days
PaidViewPoint Surveys Pending /
GrabPoints Suverys, videos, offers, games, apps Pending 500 points if register here
RewardingWays Surveys, offers, tasks, videos, contests Pending $0.20 if register here
SuperPay Surveys, offers, tasks, videos, contests Pending $0.20 if register here
InstaGC Surveys, tasks, videos, apps Pending /
GiftHunterClub Surveys, offers, videos, apps, games Pending $0.75 if register here
Idle-Empire Surveys, offers, videos, mining, apps, games Pending 500 points if register here
PicoWorkers Tasks, games, apps Pending /
ViewFruit Surveys Pending /
Mobrog (change language if needed) Surveys Pending /
Surveytime Surveys Pending /
Giveaway Pros Offers, videos Pending /
SEO Sprint (Russian, use Google Translate) Tasks Pending /
Earnhoney Surveys, tasks, offers, videos Pending /
Toluna Surveys Pending /
Spidermetrix Surveys Pending /
BeerSurveys Surveys, tasks, offers Pending /
CrowdHolding Co-create with startups Pending /
Diaworkers Tasks Pending /
Presearch Search & Earn Pending /
Univox Community Surveys Pending /
YouGov Surveys Pending /
Spare5 Tasks Paypal /
Rewardia Surveys, polls, games, videos, puzzles, trivia Pending 3000 points extra (when you earn 3000 points) if register here
Earnably Surveys, tasks, offers, videos Pending /
Neevo Tasks Pending /
Rakuten Insight (country specific links) Surveys Pending /
The Panel Station Surveys Pending /
Remotasks Tasks Pending /
Pureprofile Surveys Pending /
UserCrowd Tasks PayPal /
Sruvey Village Surveys Pending /
InboxDollars/InboxPounds Surveys, offers, videos, shopping Pending /
Qmee Surveys Pending /
MicroWorkers Tasks Pending /
Cinchbucks Surveys, offers, tasks, videos Pending /
Rewards1 Suverys, videos, offers, games, apps, polls, contests Pending /
Vindale Surveys Pending /
PointClub Surveys Pending /
TGM Panel Surveys Pending /
PaidPoints Tasks, offers, traffic exchange, ad clicking Pending /
RapidWorkers Tasks Pending /
AnyTask Sell your skills Pending /
Bounty0x Tasks Pending /
Opinion World Surveys Pending /
Lifepoints Surveys Pending /
Passive (desktop & mobile)
Register here How to earn Payment proof Sign-up bonus code
HoneyGain Desktop & mobile phone bandwith sharing (wifi + data) Paypal $5.00 if register here
FluidStack Desktop bandwith sharing (Linux needed) Paypal /
PacketStream Desktop bandwith sharing Pending /
LoadTeam CPU power sharing Pending $0.20 if register here
Gener8 Browser extension Pending 10 tokens if register here
Kryptex Crypto mining Pending /
Ebesucher Surfing, reading mails Bank transfer /
Honeyminer Mining Pending 1000 satoshis if register here
LazyBucks Rent out your Facebook account Pending /
HideoutTV and link to Reward XP to cashout Videos Paypal /
Honey Discounts & Cashback / 500 Honey Gold if register here
Fitplay Games Pending $0.33 if register here
Mistplay Games Pending /
Money SMS Receive SMS Pending /
McMoney Receive SMS Pending $0.22 if using code '60LGG3PR'
SMS Profit Net Receive SMS Pending /
Simcash Send SMS [risky] Pending /
Cash4sms Send [risky] & receive SMS Pending /
ControlMySMS Receive SMS Pending /
Birdchain Send SMS [risky] Pending /
Sweatcoin Walking Pending /
COIN Explore Pending 1000 coins if register here
Panel App Surveys, location sharing Pending /
Phoneum Games, mining Pending /
Crypto (faucets, mining, GPT)
Register here How to earn Payment proof Sign-up bonus code
Cointiply Faucet, surveys, tasks, offers, videos Bitcoin Enter code 'beermoneyglobal'
FreeBitcoin Faucet, lottery, betting, passive interest Bitcoin /
AdBTC Click ads, active window surfing, autosurfing Pending /
Faucetpay Faucet Wallet, exchange, offers, tasks, trading Pending /
Faucet Crypto Faucet, ads clicking, offers, shortlinks Pending /
More Money Faucet, ads clicking, offers, shortlinks Pending /
Kryptex Crypto mining Pending /
Quicrypto Surveys, tasks, offers, games, videos Pending /
Coinpot Faucet Bitcoin /
Honeyminer Mining Pending 1000 satoshis if register here
BitShark Faucet, games Pending /
Publish0x Read & write articles Pending /
Starbits Faucet (need FaucetPay account) Pending /
Coinpayu Ads clicking, videos, offers Pending /
BTCSurveys Surveys Pending /
Blockreward Apps, surveys, videos Pending $2.00 if register here and earn 20000b + $2.00 if earn 10000b within 30 days
Coinbase Crypto sign-up bonuses Bank transfer See links in thread
LBRY.tv Watch videos Pending /
Pi Network Crypto mining Pending (see here) To join you need a referral link
EarnCrypto Data entry, surveys, offers, tasks, videos, games, apps Pending /
Phoneum Games, mining Pending /
Mobile
Register here How to earn Payment proof Sign-up bonus code
Cointiply Faucet, surveys, tasks, offers, videos Bitcoin Enter code 'beermoneyglobal'
HoneyGain Desktop & mobile phone bandwith sharing (wifi + data) Paypal $5.00 if register here
Google Opinion Rewards Surveys Play Store credit /
FreeBitcoin Faucet, lottery, betting, passive interest Bitcoin /
AppKarma Games, quizes, surveys Pending Enter code 'Proim' for 300 points when signing up
CashKarma Surveys, offers, games Pending Enter code 'Proim' for 300 points when signing up
Cash Alarm Games Pending Receive 25% of my earnings if register here
Cash Magnet Games, offers, tasks, videos Pending /
AttaPoll Surveys Pending /
ClipClaps Videos, games, raffles PayPall $1.00 & Diamond Chest if register here
Quicrypto Surveys, tasks, offers, games, videos Pending /
Poll Pay Surveys Pending $0.30 if using code '4CS6L4SQ8D' when signing up
BuzzBreak Read news, videos, offers, surveys Pending Enter code 'B06472489' when signing up
Userlytics Software testing Pending /
WowApp Games, offers, surveys, videos, chat, phone unlock, calling, cashback, shopping cashback, browsing, news reading Pending /
CuriousCat Surveys Pending /
Quickthoughts Surveys Pending /
Fitplay Games Pending $0.33 if register here
TV-Two Make Money Apps, games, Youtube, browsing Pending 555 credits if register here
Mistplay Games Pending /
FeaturePoints Suveys, offers, apps, cashback Pending 50 points if register here
Money SMS Receive SMS Pending /
BIGtoken Suveys, location sharing, social media account Pending Use code 'GMGALLOIA'
McMoney Receive SMS Pending $0.22 if using code '60LGG3PR'
Pi Network Crypto mining Pending (see here) To join you need a referral link
Roamler Mystery shopping Pending /
SMS Profit Net Receive SMS Pending /
Streetbees Surveys, tasks, create videos, take pictures Pending Enter code '6115GF' when signing up
Simcash Send SMS [risky] Pending /
VoxPopMe Video feedback Pending /
Cash4sms Send [risky] & receive SMS Pending /
Citizen Me Surveys Pending /
ControlMySMS Receive SMS Pending /
Birdchain Send SMS [risky] Pending /
Sweatcoin Walking Pending /
COIN Explore Pending 1000 coins if register here
Panel App Surveys, location sharing Pending /
GiftHunterClub Surveys, offers, videos, apps, games Pending $0.75 if register here
Phoneum Games, mining Pending /
Research
Register here How to earn Payment proof Sign-up bonus code
Respondent Interviews, research, surveys Pending /
Prolific Surveys, research Paypal /
User testing
Register here How to earn Payment proof Sign-up bonus code
TestingTime Software testing Pending /
uTest Software testing Pending /
PingPong Software testing Pending /
TryMyUI Software/UI testing Pending /
Testbirds Software/UI testing Pending /
Pulselabs Voice app testing Pending /
PlaytestCloud Game testing Pending /
Userlytics Software testing Pending /
Investing (revenue share)
Register here How to earn Payment proof Sign-up bonus code
PaidVerts Ad clicking, offers, revenue sharing Bitcoin /
MyTrafficValue Games, investing PayPal /
Selling (designs on merchandise, skills/gigs)
Register here How to earn Payment proof Sign-up bonus code
Fiverr Sell your skills Pending 20% off on first purchase if register here
Redbubble Sell your designs Pending /
Zeerk Sell your skills Pending /
TeePublic Sell your designs Pending /
Teespring Sell your designs Pending /
Transcribing/Translating
Register here How to earn Payment proof Sign-up bonus code
Rev Transcribing, captioning, foreign subtitles Pending /
Gotranscript Transcribing, translating captioning, foreign subtitles Pending /
TranscribeMe Transcribing, translating, data annotation Pending /
Unbabel Translating Pending /
Others
Register here How to earn Payment proof Sign-up bonus code
Wealthy Affiliate Learn affiliate marketing Pending /
Brave Brows internet Pending /
Andromo Develop apps Pending /
The Netherlands specific
For The Netherlands there are a few very good options next to a bunch of ‘spaarprogramma’s. There ‘spaarprogramma’s are all the same where you receive and click a bunch of e-mails, advertisements, banners,... I advise you to create a separate e-mail address or use a good filter in your inbox as you will be spammed to death. I believe they can be a nice piece of beermoney but they take quite the effort.
Register here How to earn Payment proof Sign-up bonus code
Euroclix Surveys, shopping & cashback, offers, energy/internet providers Bank transfer €1.95 if register here
StemPunt Surveys Gift cards 500 points if register here
Cashback XL Shopping cashback, health insurance discount Bank transfer /
Scoupy Shopping cashback, free products Pending /
Cashback Korting Read mails, click banners, shopping cashback, shopping deals, compare (GWL, data, internet, tv, insurances), offers, surveys Pending €7.50 if register here
Lady Cashback Read mails, click banners, shopping cashback, shopping deals, compare (GWL, data, internet, tv, insurances), offers, surveys Pending €7.50 if register here
Enqueteclub Read mails, click banners, shopping cashback, shopping deals, compare (GWL, data, internet, tv, insurances), offers, surveys Pending €7.50 if register here
Snel Verdienen Read mails, click banners, shopping cashback, shopping deals, compare (GWL, data, internet, tv, insurances), offers, surveys Pending €2.50 if register here
Spaar Actief Read mails, click banners, shopping cashback, shopping deals, compare (GWL, data, internet, tv, insurances), offers, surveys Pending €1.00 if register here
Klik Je Zakgeld Read mails, click banners, shopping cashback, shopping deals, compare (GWL, data, internet, tv, insurances), offers, surveys Pending €1.00 if register here
Zinngeld Read mails, click banners, shopping cashback, shopping deals, compare (GWL, data, internet, tv, insurances), offers, surveys Pending €0.10 if register here
My Clics Read mails, click banners, shopping cashback, shopping deals, compare (GWL, data, internet, tv, insurances), offers, surveys Pending €1.25 if register here
Direct Verdiend Read mails, click banners, shopping cashback, shopping deals, compare (GWL, data, internet, tv, insurances), offers, surveys Pending €2.00 if register here
Spaar4Cash Read mails, click banners, shopping cashback, shopping deals, compare (GWL, data, internet, tv, insurances), offers, surveys Pending €1.50 if register here
Qassa Read mails, click banners, shopping cashback, shopping deals, compare (GWL, data, internet, tv, insurances), offers, surveys Pending /
My Flavours Read mails, click banners, shopping cashback, shopping deals, compare (GWL, data, internet, tv, insurances), offers, surveys Pending €1.00 if register here
Cash Ze Read mails, click banners, shopping cashback, shopping deals, compare (GWL, data, internet, tv, insurances), offers, surveys Pending €1.00 if register here
Geld Race Read mails, click banners, shopping cashback, shopping deals, compare (GWL, data, internet, tv, insurances), offers, surveys Pending €1.25 if register here
iPay Read mails, click banners, shopping cashback, shopping deals, compare (GWL, data, internet, tv, insurances), offers, surveys Pending €1.25 if register here
Double Points Read mails, click banners, shopping cashback, shopping deals, compare (GWL, data, internet, tv, insurances), offers, surveys Pending €2.00 if register here
Mailbeurs Read mails, click banners, shopping cashback, shopping deals, compare (GWL, data, internet, tv, insurances), offers, surveys Pending €1.50 if register here
Qlics Read mails, click banners, shopping cashback, shopping deals, compare (GWL, data, internet, tv, insurances), offers, surveys Pending €1.25 if register here
Centmail Read mails, click banners, shopping cashback, shopping deals, compare (GWL, data, internet, tv, insurances), offers, surveys Pending €1.50 if register here
Extra Euro Read mails, click banners, shopping cashback, shopping deals, compare (GWL, data, internet, tv, insurances), offers, surveys Pending €1.25 if register here
Gekken Goud Read mails, click banners, shopping cashback, shopping deals, compare (GWL, data, internet, tv, insurances), offers, surveys Pending €1.00 if register here
Dutch Euro Read mails, click banners, shopping cashback, shopping deals, compare (GWL, data, internet, tv, insurances), offers, surveys Pending €1.50 if register here
Nu Cash Read mails, click banners, shopping cashback, shopping deals, compare (GWL, data, internet, tv, insurances), offers, surveys Pending €1.00 if register
Snel Euro Read mails, click banners, shopping cashback, shopping deals, compare (GWL, data, internet, tv, insurances), offers, surveys Pending €1.00 if register here
Cash Hier Read mails, click banners, shopping cashback, shopping deals, compare (GWL, data, internet, tv, insurances), offers, surveys Pending €1.50 if register here
Betaalde Mails Read mails, click banners, shopping cashback, shopping deals, compare (GWL, data, internet, tv, insurances), offers, surveys Pending €2.00 if register here
Goudmails Read mails, click banners, shopping cashback, shopping deals, compare (GWL, data, internet, tv, insurances), offers, surveys Pending €1.00 if register here
Online Cashen Read mails, click banners, shopping cashback, shopping deals, compare (GWL, data, internet, tv, insurances), offers, surveys Pending €1.00 if register here
Crazy Mails Read mails, click banners, shopping cashback, shopping deals, compare (GWL, data, internet, tv, insurances), offers, surveys Pending €1.00 if register here
Cash Paradijs Read mails, click banners, shopping cashback, shopping deals, compare (GWL, data, internet, tv, insurances), offers, surveys Pending €1.00 if register here
Smart Clix Read mails, click banners, shopping cashback, shopping deals, compare (GWL, data, internet, tv, insurances), offers, surveys Pending €5.00 if register here
24/7 Discount Read mails, click banners, shopping cashback, shopping deals, compare (GWL, data, internet, tv, insurances), offers, surveys Pending /
Beetje Zakgeld Read mails, click banners, shopping cashback, shopping deals, compare (GWL, data, internet, tv, insurances), offers, surveys Pending €1.25 if register here
Geldmolen Read mails, click banners, shopping cashback, shopping deals, compare (GWL, data, internet, tv, insurances), offers, surveys Pending €1.75 if register here
Online Zakcentje Read mails, click banners, shopping cashback, shopping deals, compare (GWL, data, internet, tv, insurances), offers, surveys Pending €1.50 if register here
Geldcircus Read mails, click banners, shopping cashback, shopping deals, compare (GWL, data, internet, tv, insurances), offers, surveys Pending €0.75 if register here
Lady Clix Read mails, click banners, shopping cashback, shopping deals, compare (GWL, data, internet, tv, insurances), offers, surveys Pending €0.99 if register here
Geldwolf Read mails, click banners, shopping cashback, shopping deals, compare (GWL, data, internet, tv, insurances), offers, surveys Pending €1.00 if register here
Zilvervloot Read mails, click banners, shopping cashback, shopping deals, compare (GWL, data, internet, tv, insurances), offers, surveys Pending €1.00 if register here
Belgium specific
Register here How to earn Payment proof Sign-up bonus code
Buffl Surveys Gift cards /

Sign-up bonuses

The one-time sign-up bonus programs are still to be found here. If you find a new one let me know so I can create the post to keep all the ref links together.

Saving money

Although it’s not really about making money online, it’s still nice to save some money as well when shopping online.
Register here How to earn Payment proof Sign-up bonus code
Honey Discounts & Cashback / 500 Honey Gold if register here
G2A Game keys / /
Kinguin Game keys / /
Allkeyshop Game keys / /
AliExpress Save on online shopping / $24 coupons if register here
Gearbest Save on online shopping / /

Other subs & resources

submitted by Proim to beermoneyglobal [link] [comments]

[WTS] Larger Lot of Gold/Platinum/Silver/Jewelry

Proof: https://imgur.com/a/7xQGIbC
All prices based on spot price of gold @ $1,970/oz , silver @ $24.25/oz, platinum @ $915/oz (7/31/20). Prices good with gold spot below $1990, silver below $25. I am not a coin grader. The condition of any coin listed is how it was listed when I acquired it. I will be more than happy to provide any detailed, unedited photos for any coin. Unless specifically mentioned, assume coins are in generally good condition. Noticeable defects potentially affecting the value will attempt to be noted. I try to price my items substantially below the lowest price I can find online from a national dealer. If you see a legitimate cheaper price, let me know and I may very well adjust my price. FYI, I am in Eastern time zone if I do not respond, may be sleeping.
PLATINUM LISTINGS
Proof: https://imgur.com/a/FcUg9BV

Physical platinum has been hard to come by and premiums have been high. Lucky to have these to list:
1 oz Argor-Heraeus Platinum Bars in assay x 10 9 8 — $990/ea (spot plus $75)


GOLD LISTINGS
Proof: https://imgur.com/a/bGofCRx

2009-W Ultra High Relief Proof St. Gauden 24K in OGP. Quite simply, this may be the coolest coin I have ever seen! — $2,250
1 oz slabbed American Gold Eagle 25th Anniversary Early Release, MS70 NGC (2011) — $2,150 (Note: slab has some scratches on it, the coin is fine)
1924 slabbed $20 St. Gaudens gold double eagle, MS63 PCGS — $2,050
1925 Slabbed $20 St. Gaudens gold double eagle, MS64 PCGS -- $2,275
1911-S Slabbed $20 St. Gaudens gold double eagle, MS63 Blanchard — $2,200
1910 Raw $20 St. Gauden gold double eagle — $2,025
$10 Gold Liberty Head x 2 (1894, 1899) — $1,010/ea
2018-W Slabbed First Strike PCGS MS70 American Gold Eagle — $2,175
Cleaned 1899 $5 Liberty head gold coin — $535
2002 slabbed Salt Lake City Olympics $5 gold commemorative, MS69 PCGS (0.2419 oz) — $485

Proof: https://imgur.com/a/bGofCRx

100gm (10x10) Valcambi Combicard in assay. Individually @ $73/ea x 100. I will risky ship up to 3 of these in an envelope for $1 @ buyer’s risk. It will not be tracked and I do not like doing it. Would prefer $4 bubble mailer, but buyer’s choice.
1 oz gold bars in assay [Valcambi x 2 1, Sunshine Mint, PAMP Religious Romanesque (Note: some peeling of clear cover for PAMP — pictures if desired)] — $2,030
1 oz Credit Suisse gold bar, in plastic but not assay — $2,030
Sterngold, 99.95%, used in making dental alloys, 1gm each x 30. This is a unique item not likely to be found in many collector’s stash. I will risky ship up to 3 of these in an envelope for $1 @ buyer’s risk. It will not be tracked and I do not like doing it. Would prefer $4 bubble mailer, but buyer’s choice— $71/ea

Proof: https://imgur.com/a/wa1mLWZ

1oz American Gold Eagle, BU (1989, Roman numerals) — $2,060
1oz American Gold Eagle (1986, Roman numerals) — $2060
1 oz gold Pandas (1987, 2011) — 1987 sealed, BU — $2,175 ; 2011, uncirculated — $2,250
1 oz Gold Apartheid era South African Krugerrands x 42 (1975 x 2, 1977, 1978, 1979 x 27, 1980, 1981 x 8, 1982, 1984) — $2,040/ea
1 oz Gold American Buffalos (2016 x 1, 2006 x 2) [NOTE: both 2006 have a slight ding on the rim. Sealed in plastic, not ex-jewelry, but slight ding. Photos if desired)] — $2,070 for 2016, $2,065/ea for 2006’s with ding
1 oz Gold Brittania, BU (2020) — $2,065
1 oz unique Canada Golden Eagle, BU (2018). This is .99999 pure (that is five 9’s). Highest purity I am aware of — $2,070
1 oz Gold Austrian Philharmonics, BU (1994 x 1, 1999 x 1) — $2,040/ea
1 oz Gold Canadian Maple Leafs x 8 (1980 x 2, 1981, 2002 with red on “F” of fine gold on reverse, 2002 x 3 with some small scratches, 2011) — $2050/ea
1/4 oz American Gold Eagles x 6 4 (1988 Roman Numeral, 2013, 2014, 2015 x 2, 2020) — $565/ea
1/10oz American Gold Eagles in display (5 coins), BU (2006, 2012) — $1,200/ea
Empty case to display your own set of 5 1/10 oz American Gold Eagles— $10
1/4oz Gold Brittanias, BU (2013 x4) — $600/ea
50 Pesos Mexican Gold x 10 (1947 Restrikes x 8, 1943, 1944) — $2,460/ea for restrikes, $2,470/ea for ’43, ’44
1/2 oz Gold Apartheid era South African Krugerrands x 3 (1980 x 2, 1981) — $1,100/ea
1/10 oz Gold Apartheid era South African Krugerrands x 25 24 23 (various dates 1980-1984, 2011 (not apartheid era) x 1) — $240/ea
1/10 oz American Gold Eagles (various dates x 43, Roman numeral x 11 7) x 54 50 45 — $240/ea for various dates, $260/ea Roman numeral dates

Proof: https://imgur.com/a/KCjdPAy

2006 American Gold Eagle Proof Set (1 oz, 1/2 oz, 1/4 oz, 1/10 oz — 1.85 total troy oz) in OGP — $3,875
1997 Jackie Robinson $5 gold commemorative set. Comes with COA, baseball card, pin, patch, presentation box. There are some dings on the box. Pictures if desired. (0.2419 oz) — $700 (A portion of the proceeds will go toward a reputable social justice charity)
1987 & 1988 UK Gold Sovereign Proof Sets in nice case (each set has a Double Sovereign: 28.4mm, Sovereign: 22.05mm, Half Sovereign: 19.3mm) -- $1,850/each set (NOTE: the 1988 set is missing the COA.)
Austrian Ducat 4 gold coin x 2 (1915 x 2 ), 0.4438 tory oz gold — $895/ea
20 Francs Gold x 20 15 6 (11 10 4 — Roosters, 5 4 2 -- Swiss Francs, 4 1-French Empire), 0.1867 troy oz of gold/ea — $380/ea
Netherlands Gold 10 Guilder x 5, contain 0.1947 troy oz/ea (1926 x 2, 1927, 1932, 1933) — $470/ea
Gold Libertad 1/20 oz (2016) — $200 OBO
Gold Libertad 1/10 oz, BU (2016) — $340 OBO
Gold Libertad 1/10 oz proof (2016) — $350 OBO
Gold Sovereigns x 5 1, contain 7.315g gold/ea (1902, 1911, 1927 x 2 x 1, 1928) — $475/ea
1/4 oz Gold Canadian Maple (2005) — $565

Proof: https://imgur.com/a/VXzaDUN
Late Addition:
5 3 additional 1976 1 oz Krugerrands — $2,040/ea
6 additional Pandas: Don’t ask me why the premiums on Pandas are so high. They just are. I tried to price about $20+ dollars below the cheapest I could find them online at large dealers. If you find a legitimate lower price, let me know and I may very well adjust the price. 1985 — $2,150, 1987 — $2,120, 1988 — $2,095, 1990 — $2,150, 1991 — $2,150, 2002 — $2,200, 2011 — $2,240
26 25 1/10 oz Australian Battle of the Coral Sea Battle in the Pacific, in capsules — $225/ea
14 additional Netherlands gold 10 guilders — $470/ea


LOW PREMIUM LISTINGS
Proof: https://imgur.com/a/jlE0Xuu
All the time I see posts looking for precious metals “at or near spot.” Well here is your chance. If you don’t purchase these, then you are not really looking for gold at or near spot, you are looking for premium items without the premium. Those deals may be out there, but they are few and far between, with lines of buyers looking to snap them up, including myself. Items here will generally be available for spot + <2%. To get a physical form of a precious metal refined, assayed, and produced into an identifiable and verifiable form/weight/purity for a tad above spot is pretty darn good, regardless of the collectability of the item. I see people paying more premium for scrap gold than some of these.

1976 Canadian Montreal Olympic $100 commemorative (one in OGP (signs of wear), one loose with OGP in worn state but coin is fine, 0.25 oz each). You are not purchasing these for the packaging. — $500/ea
American Arts Gold Medallion Grant Wood, 1 troy oz — $2,005
2010 US Mint First Spouse Series Gold Uncirculated Mary Todd Lincoln 1/2 troy oz in OGP, NOTE: red spot on obverse (See Photo) — $1,005
Cleaned, ex-jewelry $5 Liberty head gold coin (1900, 1906 ), Note: some rim damage, will send photos if desired — $485/ea


JEWELRY LISTINGS
Proof: https://imgur.com/a/QEVcW0F

CRESCENT sterling silver pocket watch case, twist on bezel. Marked with CRESCENT, Sterling, serial number 4188. Amateur engraving with a marked name and 1919. Weighs over 100 grams!!! Pre-owned, with expected signs of tarnish and wear. A ding on back of case (see photo close up) — $75
1913 $5 Indian Head gold coin in 14K bezel, bezel weighs 1.30g — $575
2014 1/10 oz American Gold Eagle in 14K eagle pendant, bezel weighs 3.487g — $400


SILVER LISTINGS

Proof: https://imgur.com/a/MTK1BfP

Proof: https://imgur.com/a/54maJxn
25 Slabbed and Graded American Silver Eagles — Whole lot for $1,000 OBO. May make offers on individual rounds. (SOLD '92. '93, '14W)
For reference, on 8/15, APMEX wholesale site is asking $100/ea for the ‘94’s. Offering to buy ‘14-S for $50 and the NGC MS70 for $120.
—ALL NGC MS69 — 1992, 1993, 1994 x 3, 2000, 2001 x 2, 2002, 2003, 2006, 2007 —ALL NGC MS69 — 2007 Early Release x 7 —NGC MS69 — 2014(W) —NGC MS69 — 2013 First Release —PCGS MS69 — 2008 First Strike —PCGS MS69 — 2014(S) First Strike —PCGS MS69 — 2003 —NGC MS70 — 2003 
100 oz silver bars (Engelhard x 1, Ohio Precious Metals —don’t believe they will be making either of these anymore) — $2,775 /ea
20 oz Scottsdale kit kat bars (2) — $555/ea (1 left)
10 oz Queen's Beasts Series Falcons x 4 — $400/ea
2 oz Queen's Beasts Series -- tubes of Falcons x 4 ($800/ea), Yales x 4 ($580/ea)
1 oz Sunshine Minting Silver Bars x 237 199 — $28.50/ea
1 roll 2006 90% San Francisco Mint Proof Colorado State Washington Quarters — $210 (NOTE: it looks like there might be some small surface scratches on some of the coins. Therefore, they are being priced as just uncirculated.)
Men in Space Series I First Edition, .925 commemorative medals x 2 sets. These are not just sterling silver medals but history depicting the major events in the early years of NASA. https://www.worthpoint.com/worthopedia/danbury-mint-men-space-series-first-411707135 One set in original presentation packaging just like the link. One set loose with a few extra medals (2 additional medals from the 1969 Men in Space series II — 2nd Moon Landing, 1st Space Rescue; one duplicate medal from series I, and one additional First Manned Landing on the Moon Apollo 11 (slightly larger, from unknown series to me)). Sold in lots only. Lot with packaging (21 medals, 0.7 oz each) — $360. Loose lot (25 medals, 0.7 oz each plus 1 slightly larger Appollo 11 as above) — $375

Proof: https://imgur.com/gallery/hRX6XlB
Mexican Silver Lot -- Sold in lots of (10) @ $175/lot. YOU MAY MIX/MATCH
—1952-53 Mexican 5 Pesos Hidalgo, 72% silver, 0.643 troy oz silvecoin (x10)
—1977-79 Mexican 100 Pesos, 72% silver, 0.643 troy oz silvecoin (x10)
—1968— Mexican Olympic 25 Pesos, 72% silver, 0.521 troy oz silvecoin (x20)

1973 Mundinero World Trade rounds x 2 tubes — $600/ea
1973 Mundinero World Trade Rounds with 14 of the 20 being High Relief — $640
Generic Rounds (mostly buffalos, I believe ) x 10 tubes — $560/tube
Few loose generic rounds x 6 — $28/ea
2 Painted American Silver Eagles — $30/ea
’84-’85 Engelhard Prospector Rounds x 2 tubes — One tube of (20) — $660; One tube of (17) — $560
Canadian Maple Tubes of 25 x 3 (2012 x 2, 2008 x 1, NOTE: 2008 rounds have some milk spots) — $725/tube

Proof: https://imgur.com/a/XnRiLPW
Lot of 17 premium rounds: Philharmonics x4, Brittanias x 5, 2018 Republic Of Chad African Lion x 2, Krugerrands x 3, Australian Kangaroo x 1, Super Pit Australia x 2 — $488. Sold only as a lot.
Lot of fractional silver rounds, 1.35 ASW — 1/4 oz indian head, 1/4 oz walking liberty, 1/4 oz buffalo nickel, 1/10 oz indian head x 3, buffalo x 1, Morgan x 1 — $44. Sold only as a lot.

LOW PREMIUM LISTINGS
Proof: https://imgur.com/a/R9NuZj8
All the time I see posts looking for precious metals “at or near spot.” Well here is your chance. If you don’t purchase these, then you are not really looking for silver at or near spot, you are looking for premium items without the premium. Those deals may be out there, but they are few and far between, with lines of buyers looking to snap them up, including myself. Items here will generally be available for spot + <2%. To get a physical form of a precious metal refined, assayed, and produced into an identifiable and verifiable form/weight/purity for a tad above spot is pretty darn good, regardless of the collectability of the item. I see people paying more premium for scrap than some of these.

Silver war nickels @ $1.36/ea (BELOW SPOT), 8,500+ available, minimum quantity of 100

Large lot of Canadian — further info on request. Prefer to sell this in larger lots grouped together, not piecing it out or small lots. Take the whole lot for $3,000, or:
—$1.75fv, .925 — $33 —$20.25fv, ’67-’68, 50% (mostly all quarters) — $185 —$164.35fv, pre ’67, 80% (includes 65 $1) — $2,400 —1976 Montreal Olympic .925 $10 commemoratives x 9, 1.4454 troy oz/ea — $40/ea —1972 .925 $25 Cayman Island Silver Anniversary x 1, 1.5271 troy oz — $42.50 

TERMS: All eligible items are verified with a sigma precious metal verifier or Kee gold tester. Prices are generally based on the underlying spot price. Large fluctuations in spot prices could affect the price of items listed. Shipping will generally be at cost. USPS first class starts @ $4, SFRB @ $8.50, signature @ $2.50. Will insure for 1.1% of purchase price. Shipping is at buyer’s risk. All items will be tracked, but I cannot be responsible for what happens on your porch. Would recommend delivery to a secure box for precious metals. Accept in order of preference: 1st — Zelle or Venmo; 2nd — PPFF (no comments), PPG&S @ +3.0%; Last resort: I have recently acquired the ability to accept Bitcoin, but am still learning. Be patient and fees will be at buyer’s expense, but I will try to work with you if other options do not suffice. Other forms of payment will be considered. Thank you!
submitted by AgAuSeller to Pmsforsale [link] [comments]

Why i’m bullish on Zilliqa (long read)

Edit: TL;DR added in the comments
 
Hey all, I've been researching coins since 2017 and have gone through 100s of them in the last 3 years. I got introduced to blockchain via Bitcoin of course, analyzed Ethereum thereafter and from that moment I have a keen interest in smart contact platforms. I’m passionate about Ethereum but I find Zilliqa to have a better risk-reward ratio. Especially because Zilliqa has found an elegant balance between being secure, decentralized and scalable in my opinion.
 
Below I post my analysis of why from all the coins I went through I’m most bullish on Zilliqa (yes I went through Tezos, EOS, NEO, VeChain, Harmony, Algorand, Cardano etc.). Note that this is not investment advice and although it's a thorough analysis there is obviously some bias involved. Looking forward to what you all think!
 
Fun fact: the name Zilliqa is a play on ‘silica’ silicon dioxide which means “Silicon for the high-throughput consensus computer.”
 
This post is divided into (i) Technology, (ii) Business & Partnerships, and (iii) Marketing & Community. I’ve tried to make the technology part readable for a broad audience. If you’ve ever tried understanding the inner workings of Bitcoin and Ethereum you should be able to grasp most parts. Otherwise, just skim through and once you are zoning out head to the next part.
 
Technology and some more:
 
Introduction
 
The technology is one of the main reasons why I’m so bullish on Zilliqa. First thing you see on their website is: “Zilliqa is a high-performance, high-security blockchain platform for enterprises and next-generation applications.” These are some bold statements.
 
Before we deep dive into the technology let’s take a step back in time first as they have quite the history. The initial research paper from which Zilliqa originated dates back to August 2016: Elastico: A Secure Sharding Protocol For Open Blockchains where Loi Luu (Kyber Network) is one of the co-authors. Other ideas that led to the development of what Zilliqa has become today are: Bitcoin-NG, collective signing CoSi, ByzCoin and Omniledger.
 
The technical white paper was made public in August 2017 and since then they have achieved everything stated in the white paper and also created their own open source intermediate level smart contract language called Scilla (functional programming language similar to OCaml) too.
 
Mainnet is live since the end of January 2019 with daily transaction rates growing continuously. About a week ago mainnet reached 5 million transactions, 500.000+ addresses in total along with 2400 nodes keeping the network decentralized and secure. Circulating supply is nearing 11 billion and currently only mining rewards are left. The maximum supply is 21 billion with annual inflation being 7.13% currently and will only decrease with time.
 
Zilliqa realized early on that the usage of public cryptocurrencies and smart contracts were increasing but decentralized, secure, and scalable alternatives were lacking in the crypto space. They proposed to apply sharding onto a public smart contract blockchain where the transaction rate increases almost linear with the increase in the amount of nodes. More nodes = higher transaction throughput and increased decentralization. Sharding comes in many forms and Zilliqa uses network-, transaction- and computational sharding. Network sharding opens up the possibility of using transaction- and computational sharding on top. Zilliqa does not use state sharding for now. We’ll come back to this later.
 
Before we continue dissecting how Zilliqa achieves such from a technological standpoint it’s good to keep in mind that a blockchain being decentralised and secure and scalable is still one of the main hurdles in allowing widespread usage of decentralised networks. In my opinion this needs to be solved first before blockchains can get to the point where they can create and add large scale value. So I invite you to read the next section to grasp the underlying fundamentals. Because after all these premises need to be true otherwise there isn’t a fundamental case to be bullish on Zilliqa, right?
 
Down the rabbit hole
 
How have they achieved this? Let’s define the basics first: key players on Zilliqa are the users and the miners. A user is anybody who uses the blockchain to transfer funds or run smart contracts. Miners are the (shard) nodes in the network who run the consensus protocol and get rewarded for their service in Zillings (ZIL). The mining network is divided into several smaller networks called shards, which is also referred to as ‘network sharding’. Miners subsequently are randomly assigned to a shard by another set of miners called DS (Directory Service) nodes. The regular shards process transactions and the outputs of these shards are eventually combined by the DS shard as they reach consensus on the final state. More on how these DS shards reach consensus (via pBFT) will be explained later on.
 
The Zilliqa network produces two types of blocks: DS blocks and Tx blocks. One DS Block consists of 100 Tx Blocks. And as previously mentioned there are two types of nodes concerned with reaching consensus: shard nodes and DS nodes. Becoming a shard node or DS node is being defined by the result of a PoW cycle (Ethash) at the beginning of the DS Block. All candidate mining nodes compete with each other and run the PoW (Proof-of-Work) cycle for 60 seconds and the submissions achieving the highest difficulty will be allowed on the network. And to put it in perspective: the average difficulty for one DS node is ~ 2 Th/s equaling 2.000.000 Mh/s or 55 thousand+ GeForce GTX 1070 / 8 GB GPUs at 35.4 Mh/s. Each DS Block 10 new DS nodes are allowed. And a shard node needs to provide around 8.53 GH/s currently (around 240 GTX 1070s). Dual mining ETH/ETC and ZIL is possible and can be done via mining software such as Phoenix and Claymore. There are pools and if you have large amounts of hashing power (Ethash) available you could mine solo.
 
The PoW cycle of 60 seconds is a peak performance and acts as an entry ticket to the network. The entry ticket is called a sybil resistance mechanism and makes it incredibly hard for adversaries to spawn lots of identities and manipulate the network with these identities. And after every 100 Tx Blocks which corresponds to roughly 1,5 hour this PoW process repeats. In between these 1,5 hour, no PoW needs to be done meaning Zilliqa’s energy consumption to keep the network secure is low. For more detailed information on how mining works click here.
Okay, hats off to you. You have made it this far. Before we go any deeper down the rabbit hole we first must understand why Zilliqa goes through all of the above technicalities and understand a bit more what a blockchain on a more fundamental level is. Because the core of Zilliqa’s consensus protocol relies on the usage of pBFT (practical Byzantine Fault Tolerance) we need to know more about state machines and their function. Navigate to Viewblock, a Zilliqa block explorer, and just come back to this article. We will use this site to navigate through a few concepts.
 
We have established that Zilliqa is a public and distributed blockchain. Meaning that everyone with an internet connection can send ZILs, trigger smart contracts, etc. and there is no central authority who fully controls the network. Zilliqa and other public and distributed blockchains (like Bitcoin and Ethereum) can also be defined as state machines.
 
Taking the liberty of paraphrasing examples and definitions given by Samuel Brooks’ medium article, he describes the definition of a blockchain (like Zilliqa) as: “A peer-to-peer, append-only datastore that uses consensus to synchronize cryptographically-secure data”.
 
Next, he states that: "blockchains are fundamentally systems for managing valid state transitions”. For some more context, I recommend reading the whole medium article to get a better grasp of the definitions and understanding of state machines. Nevertheless, let’s try to simplify and compile it into a single paragraph. Take traffic lights as an example: all its states (red, amber, and green) are predefined, all possible outcomes are known and it doesn’t matter if you encounter the traffic light today or tomorrow. It will still behave the same. Managing the states of a traffic light can be done by triggering a sensor on the road or pushing a button resulting in one traffic lights’ state going from green to red (via amber) and another light from red to green.
 
With public blockchains like Zilliqa, this isn’t so straightforward and simple. It started with block #1 almost 1,5 years ago and every 45 seconds or so a new block linked to the previous block is being added. Resulting in a chain of blocks with transactions in it that everyone can verify from block #1 to the current #647.000+ block. The state is ever changing and the states it can find itself in are infinite. And while the traffic light might work together in tandem with various other traffic lights, it’s rather insignificant comparing it to a public blockchain. Because Zilliqa consists of 2400 nodes who need to work together to achieve consensus on what the latest valid state is while some of these nodes may have latency or broadcast issues, drop offline or are deliberately trying to attack the network, etc.
 
Now go back to the Viewblock page take a look at the amount of transaction, addresses, block and DS height and then hit refresh. Obviously as expected you see new incremented values on one or all parameters. And how did the Zilliqa blockchain manage to transition from a previous valid state to the latest valid state? By using pBFT to reach consensus on the latest valid state.
 
After having obtained the entry ticket, miners execute pBFT to reach consensus on the ever-changing state of the blockchain. pBFT requires a series of network communication between nodes, and as such there is no GPU involved (but CPU). Resulting in the total energy consumed to keep the blockchain secure, decentralized and scalable being low.
 
pBFT stands for practical Byzantine Fault Tolerance and is an optimization on the Byzantine Fault Tolerant algorithm. To quote Blockonomi: “In the context of distributed systems, Byzantine Fault Tolerance is the ability of a distributed computer network to function as desired and correctly reach a sufficient consensus despite malicious components (nodes) of the system failing or propagating incorrect information to other peers.” Zilliqa is such a distributed computer network and depends on the honesty of the nodes (shard and DS) to reach consensus and to continuously update the state with the latest block. If pBFT is a new term for you I can highly recommend the Blockonomi article.
 
The idea of pBFT was introduced in 1999 - one of the authors even won a Turing award for it - and it is well researched and applied in various blockchains and distributed systems nowadays. If you want more advanced information than the Blockonomi link provides click here. And if you’re in between Blockonomi and the University of Singapore read the Zilliqa Design Story Part 2 dating from October 2017.
Quoting from the Zilliqa tech whitepaper: “pBFT relies upon a correct leader (which is randomly selected) to begin each phase and proceed when the sufficient majority exists. In case the leader is byzantine it can stall the entire consensus protocol. To address this challenge, pBFT offers a view change protocol to replace the byzantine leader with another one.”
 
pBFT can tolerate ⅓ of the nodes being dishonest (offline counts as Byzantine = dishonest) and the consensus protocol will function without stalling or hiccups. Once there are more than ⅓ of dishonest nodes but no more than ⅔ the network will be stalled and a view change will be triggered to elect a new DS leader. Only when more than ⅔ of the nodes are dishonest (66%) double-spend attacks become possible.
 
If the network stalls no transactions can be processed and one has to wait until a new honest leader has been elected. When the mainnet was just launched and in its early phases, view changes happened regularly. As of today the last stalling of the network - and view change being triggered - was at the end of October 2019.
 
Another benefit of using pBFT for consensus besides low energy is the immediate finality it provides. Once your transaction is included in a block and the block is added to the chain it’s done. Lastly, take a look at this article where three types of finality are being defined: probabilistic, absolute and economic finality. Zilliqa falls under the absolute finality (just like Tendermint for example). Although lengthy already we skipped through some of the inner workings from Zilliqa’s consensus: read the Zilliqa Design Story Part 3 and you will be close to having a complete picture on it. Enough about PoW, sybil resistance mechanism, pBFT, etc. Another thing we haven’t looked at yet is the amount of decentralization.
 
Decentralisation
 
Currently, there are four shards, each one of them consisting of 600 nodes. 1 shard with 600 so-called DS nodes (Directory Service - they need to achieve a higher difficulty than shard nodes) and 1800 shard nodes of which 250 are shard guards (centralized nodes controlled by the team). The amount of shard guards has been steadily declining from 1200 in January 2019 to 250 as of May 2020. On the Viewblock statistics, you can see that many of the nodes are being located in the US but those are only the (CPU parts of the) shard nodes who perform pBFT. There is no data from where the PoW sources are coming. And when the Zilliqa blockchain starts reaching its transaction capacity limit, a network upgrade needs to be executed to lift the current cap of maximum 2400 nodes to allow more nodes and formation of more shards which will allow to network to keep on scaling according to demand.
Besides shard nodes there are also seed nodes. The main role of seed nodes is to serve as direct access points (for end-users and clients) to the core Zilliqa network that validates transactions. Seed nodes consolidate transaction requests and forward these to the lookup nodes (another type of nodes) for distribution to the shards in the network. Seed nodes also maintain the entire transaction history and the global state of the blockchain which is needed to provide services such as block explorers. Seed nodes in the Zilliqa network are comparable to Infura on Ethereum.
 
The seed nodes were first only operated by Zilliqa themselves, exchanges and Viewblock. Operators of seed nodes like exchanges had no incentive to open them for the greater public. They were centralised at first. Decentralisation at the seed nodes level has been steadily rolled out since March 2020 ( Zilliqa Improvement Proposal 3 ). Currently the amount of seed nodes is being increased, they are public-facing and at the same time PoS is applied to incentivize seed node operators and make it possible for ZIL holders to stake and earn passive yields. Important distinction: seed nodes are not involved with consensus! That is still PoW as entry ticket and pBFT for the actual consensus.
 
5% of the block rewards are being assigned to seed nodes (from the beginning in 2019) and those are being used to pay out ZIL stakers. The 5% block rewards with an annual yield of 10.03% translate to roughly 610 MM ZILs in total that can be staked. Exchanges use the custodial variant of staking and wallets like Moonlet will use the non-custodial version (starting in Q3 2020). Staking is being done by sending ZILs to a smart contract created by Zilliqa and audited by Quantstamp.
 
With a high amount of DS; shard nodes and seed nodes becoming more decentralized too, Zilliqa qualifies for the label of decentralized in my opinion.
 
Smart contracts
 
Let me start by saying I’m not a developer and my programming skills are quite limited. So I‘m taking the ELI5 route (maybe 12) but if you are familiar with Javascript, Solidity or specifically OCaml please head straight to Scilla - read the docs to get a good initial grasp of how Zilliqa’s smart contract language Scilla works and if you ask yourself “why another programming language?” check this article. And if you want to play around with some sample contracts in an IDE click here. The faucet can be found here. And more information on architecture, dapp development and API can be found on the Developer Portal.
If you are more into listening and watching: check this recent webinar explaining Zilliqa and Scilla. Link is time-stamped so you’ll start right away with a platform introduction, roadmap 2020 and afterwards a proper Scilla introduction.
 
Generalized: programming languages can be divided into being ‘object-oriented’ or ‘functional’. Here is an ELI5 given by software development academy: * “all programs have two basic components, data – what the program knows – and behavior – what the program can do with that data. So object-oriented programming states that combining data and related behaviors in one place, is called “object”, which makes it easier to understand how a particular program works. On the other hand, functional programming argues that data and behavior are different things and should be separated to ensure their clarity.” *
 
Scilla is on the functional side and shares similarities with OCaml: OCaml is a general-purpose programming language with an emphasis on expressiveness and safety. It has an advanced type system that helps catch your mistakes without getting in your way. It's used in environments where a single mistake can cost millions and speed matters, is supported by an active community, and has a rich set of libraries and development tools. For all its power, OCaml is also pretty simple, which is one reason it's often used as a teaching language.
 
Scilla is blockchain agnostic, can be implemented onto other blockchains as well, is recognized by academics and won a so-called Distinguished Artifact Award award at the end of last year.
 
One of the reasons why the Zilliqa team decided to create their own programming language focused on preventing smart contract vulnerabilities is that adding logic on a blockchain, programming, means that you cannot afford to make mistakes. Otherwise, it could cost you. It’s all great and fun blockchains being immutable but updating your code because you found a bug isn’t the same as with a regular web application for example. And with smart contracts, it inherently involves cryptocurrencies in some form thus value.
 
Another difference with programming languages on a blockchain is gas. Every transaction you do on a smart contract platform like Zilliqa or Ethereum costs gas. With gas you basically pay for computational costs. Sending a ZIL from address A to address B costs 0.001 ZIL currently. Smart contracts are more complex, often involve various functions and require more gas (if gas is a new concept click here ).
 
So with Scilla, similar to Solidity, you need to make sure that “every function in your smart contract will run as expected without hitting gas limits. An improper resource analysis may lead to situations where funds may get stuck simply because a part of the smart contract code cannot be executed due to gas limits. Such constraints are not present in traditional software systems”. Scilla design story part 1
 
Some examples of smart contract issues you’d want to avoid are: leaking funds, ‘unexpected changes to critical state variables’ (example: someone other than you setting his or her address as the owner of the smart contract after creation) or simply killing a contract.
 
Scilla also allows for formal verification. Wikipedia to the rescue: In the context of hardware and software systems, formal verification is the act of proving or disproving the correctness of intended algorithms underlying a system with respect to a certain formal specification or property, using formal methods of mathematics.
 
Formal verification can be helpful in proving the correctness of systems such as: cryptographic protocols, combinational circuits, digital circuits with internal memory, and software expressed as source code.
 
Scilla is being developed hand-in-hand with formalization of its semantics and its embedding into the Coq proof assistant — a state-of-the art tool for mechanized proofs about properties of programs.”
 
Simply put, with Scilla and accompanying tooling developers can be mathematically sure and proof that the smart contract they’ve written does what he or she intends it to do.
 
Smart contract on a sharded environment and state sharding
 
There is one more topic I’d like to touch on: smart contract execution in a sharded environment (and what is the effect of state sharding). This is a complex topic. I’m not able to explain it any easier than what is posted here. But I will try to compress the post into something easy to digest.
 
Earlier on we have established that Zilliqa can process transactions in parallel due to network sharding. This is where the linear scalability comes from. We can define simple transactions: a transaction from address A to B (Category 1), a transaction where a user interacts with one smart contract (Category 2) and the most complex ones where triggering a transaction results in multiple smart contracts being involved (Category 3). The shards are able to process transactions on their own without interference of the other shards. With Category 1 transactions that is doable, with Category 2 transactions sometimes if that address is in the same shard as the smart contract but with Category 3 you definitely need communication between the shards. Solving that requires to make a set of communication rules the protocol needs to follow in order to process all transactions in a generalised fashion.
 
And this is where the downsides of state sharding comes in currently. All shards in Zilliqa have access to the complete state. Yes the state size (0.1 GB at the moment) grows and all of the nodes need to store it but it also means that they don’t need to shop around for information available on other shards. Requiring more communication and adding more complexity. Computer science knowledge and/or developer knowledge required links if you want to dig further: Scilla - language grammar Scilla - Foundations for Verifiable Decentralised Computations on a Blockchain Gas Accounting NUS x Zilliqa: Smart contract language workshop
 
Easier to follow links on programming Scilla https://learnscilla.com/home Ivan on Tech
 
Roadmap / Zilliqa 2.0
 
There is no strict defined roadmap but here are topics being worked on. And via the Zilliqa website there is also more information on the projects they are working on.
 
Business & Partnerships
 
It’s not only technology in which Zilliqa seems to be excelling as their ecosystem has been expanding and starting to grow rapidly. The project is on a mission to provide OpenFinance (OpFi) to the world and Singapore is the right place to be due to its progressive regulations and futuristic thinking. Singapore has taken a proactive approach towards cryptocurrencies by introducing the Payment Services Act 2019 (PS Act). Among other things, the PS Act will regulate intermediaries dealing with certain cryptocurrencies, with a particular focus on consumer protection and anti-money laundering. It will also provide a stable regulatory licensing and operating framework for cryptocurrency entities, effectively covering all crypto businesses and exchanges based in Singapore. According to PWC 82% of the surveyed executives in Singapore reported blockchain initiatives underway and 13% of them have already brought the initiatives live to the market. There is also an increasing list of organizations that are starting to provide digital payment services. Moreover, Singaporean blockchain developers Building Cities Beyond has recently created an innovation $15 million grant to encourage development on its ecosystem. This all suggests that Singapore tries to position itself as (one of) the leading blockchain hubs in the world.
 
Zilliqa seems to already take advantage of this and recently helped launch Hg Exchange on their platform, together with financial institutions PhillipCapital, PrimePartners and Fundnel. Hg Exchange, which is now approved by the Monetary Authority of Singapore (MAS), uses smart contracts to represent digital assets. Through Hg Exchange financial institutions worldwide can use Zilliqa's safe-by-design smart contracts to enable the trading of private equities. For example, think of companies such as Grab, Airbnb, SpaceX that are not available for public trading right now. Hg Exchange will allow investors to buy shares of private companies & unicorns and capture their value before an IPO. Anquan, the main company behind Zilliqa, has also recently announced that they became a partner and shareholder in TEN31 Bank, which is a fully regulated bank allowing for tokenization of assets and is aiming to bridge the gap between conventional banking and the blockchain world. If STOs, the tokenization of assets, and equity trading will continue to increase, then Zilliqa’s public blockchain would be the ideal candidate due to its strategic positioning, partnerships, regulatory compliance and the technology that is being built on top of it.
 
What is also very encouraging is their focus on banking the un(der)banked. They are launching a stablecoin basket starting with XSGD. As many of you know, stablecoins are currently mostly used for trading. However, Zilliqa is actively trying to broaden the use case of stablecoins. I recommend everybody to read this text that Amrit Kumar wrote (one of the co-founders). These stablecoins will be integrated in the traditional markets and bridge the gap between the crypto world and the traditional world. This could potentially revolutionize and legitimise the crypto space if retailers and companies will for example start to use stablecoins for payments or remittances, instead of it solely being used for trading.
 
Zilliqa also released their DeFi strategic roadmap (dating November 2019) which seems to be aligning well with their OpFi strategy. A non-custodial DEX is coming to Zilliqa made by Switcheo which allows cross-chain trading (atomic swaps) between ETH, EOS and ZIL based tokens. They also signed a Memorandum of Understanding for a (soon to be announced) USD stablecoin. And as Zilliqa is all about regulations and being compliant, I’m speculating on it to be a regulated USD stablecoin. Furthermore, XSGD is already created and visible on block explorer and XIDR (Indonesian Stablecoin) is also coming soon via StraitsX. Here also an overview of the Tech Stack for Financial Applications from September 2019. Further quoting Amrit Kumar on this:
 
There are two basic building blocks in DeFi/OpFi though: 1) stablecoins as you need a non-volatile currency to get access to this market and 2) a dex to be able to trade all these financial assets. The rest are built on top of these blocks.
 
So far, together with our partners and community, we have worked on developing these building blocks with XSGD as a stablecoin. We are working on bringing a USD-backed stablecoin as well. We will soon have a decentralised exchange developed by Switcheo. And with HGX going live, we are also venturing into the tokenization space. More to come in the future.”
 
Additionally, they also have this ZILHive initiative that injects capital into projects. There have been already 6 waves of various teams working on infrastructure, innovation and research, and they are not from ASEAN or Singapore only but global: see Grantees breakdown by country. Over 60 project teams from over 20 countries have contributed to Zilliqa's ecosystem. This includes individuals and teams developing wallets, explorers, developer toolkits, smart contract testing frameworks, dapps, etc. As some of you may know, Unstoppable Domains (UD) blew up when they launched on Zilliqa. UD aims to replace cryptocurrency addresses with a human-readable name and allows for uncensorable websites. Zilliqa will probably be the only one able to handle all these transactions onchain due to ability to scale and its resulting low fees which is why the UD team launched this on Zilliqa in the first place. Furthermore, Zilliqa also has a strong emphasis on security, compliance, and privacy, which is why they partnered with companies like Elliptic, ChainSecurity (part of PwC Switzerland), and Incognito. Their sister company Aqilliz (Zilliqa spelled backwards) focuses on revolutionizing the digital advertising space and is doing interesting things like using Zilliqa to track outdoor digital ads with companies like Foodpanda.
 
Zilliqa is listed on nearly all major exchanges, having several different fiat-gateways and recently have been added to Binance’s margin trading and futures trading with really good volume. They also have a very impressive team with good credentials and experience. They don't just have “tech people”. They have a mix of tech people, business people, marketeers, scientists, and more. Naturally, it's good to have a mix of people with different skill sets if you work in the crypto space.
 
Marketing & Community
 
Zilliqa has a very strong community. If you just follow their Twitter their engagement is much higher for a coin that has approximately 80k followers. They also have been ‘coin of the day’ by LunarCrush many times. LunarCrush tracks real-time cryptocurrency value and social data. According to their data, it seems Zilliqa has a more fundamental and deeper understanding of marketing and community engagement than almost all other coins. While almost all coins have been a bit frozen in the last months, Zilliqa seems to be on its own bull run. It was somewhere in the 100s a few months ago and is currently ranked #46 on CoinGecko. Their official Telegram also has over 20k people and is very active, and their community channel which is over 7k now is more active and larger than many other official channels. Their local communities also seem to be growing.
 
Moreover, their community started ‘Zillacracy’ together with the Zilliqa core team ( see www.zillacracy.com ). It’s a community-run initiative where people from all over the world are now helping with marketing and development on Zilliqa. Since its launch in February 2020 they have been doing a lot and will also run their own non-custodial seed node for staking. This seed node will also allow them to start generating revenue for them to become a self sustaining entity that could potentially scale up to become a decentralized company working in parallel with the Zilliqa core team. Comparing it to all the other smart contract platforms (e.g. Cardano, EOS, Tezos etc.) they don't seem to have started a similar initiative (correct me if I’m wrong though). This suggests in my opinion that these other smart contract platforms do not fully understand how to utilize the ‘power of the community’. This is something you cannot ‘buy with money’ and gives many projects in the space a disadvantage.
 
Zilliqa also released two social products called SocialPay and Zeeves. SocialPay allows users to earn ZILs while tweeting with a specific hashtag. They have recently used it in partnership with the Singapore Red Cross for a marketing campaign after their initial pilot program. It seems like a very valuable social product with a good use case. I can see a lot of traditional companies entering the space through this product, which they seem to suggest will happen. Tokenizing hashtags with smart contracts to get network effect is a very smart and innovative idea.
 
Regarding Zeeves, this is a tipping bot for Telegram. They already have 1000s of signups and they plan to keep upgrading it for more and more people to use it (e.g. they recently have added a quiz features). They also use it during AMAs to reward people in real-time. It’s a very smart approach to grow their communities and get familiar with ZIL. I can see this becoming very big on Telegram. This tool suggests, again, that the Zilliqa team has a deeper understanding of what the crypto space and community needs and is good at finding the right innovative tools to grow and scale.
 
To be honest, I haven’t covered everything (i’m also reaching the character limited haha). So many updates happening lately that it's hard to keep up, such as the International Monetary Fund mentioning Zilliqa in their report, custodial and non-custodial Staking, Binance Margin, Futures, Widget, entering the Indian market, and more. The Head of Marketing Colin Miles has also released this as an overview of what is coming next. And last but not least, Vitalik Buterin has been mentioning Zilliqa lately acknowledging Zilliqa and mentioning that both projects have a lot of room to grow. There is much more info of course and a good part of it has been served to you on a silver platter. I invite you to continue researching by yourself :-) And if you have any comments or questions please post here!
submitted by haveyouheardaboutit to CryptoCurrency [link] [comments]

Top Best Cryptocurrency Exchanges in 2019 Top Three Bitcoin ($BTC) Exchanges! - YouTube Building Bitcoin Websites - YouTube How to profit with bitcoin - Best trading platform 2019 ... Trading with Bitcoin - YouTube

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Top Best Cryptocurrency Exchanges in 2019

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