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The underrated stock survey! Submit your picks for the community to track

Following on the previous tracking post (http://redd.it/i2mmzg) and the highly upvoted request from DJ-Ascii , I've set up this post for another round of underrated or undervalued stock picks.
As before, let us know what stock you believe is underrated and a consistent winner that has done well for you, or you believe will do well going forward.
In order to make this easier to track please use the following guidelines for submitting.
  1. Only one submission per comment. You can make multiple comments, but please only submit one stock per comment.
  2. Please include at least the ticker and the company name. Feel free to explain why you think this is a good stock.
I'll add these new picks alongside the old survey so as to update you on each portfolio over time. Don't worry about any overlaps.
Edit 1: I've compiled everyone who has posted so far, but I'll look out for any final additions tomorrow. The list will then be locked EOD on Friday the 7th of August, and all prices will start from there.
Edit 2: All picks have now been locked down and consolidated into the list below. Stocks are sorted in alphabetical order of their company name and the ID corresponds to the approximate order in which they were submitted. The next update will be in 30 days.
ID Company Symbol Provided by Upvotes 8/7/2020
194 10X Genomics Inc TXG Unlucky-Prize 1 $96.13
111 1ST TR EXCHANGE/NASDAQ CEA CYBERSEC CIBR komoggmu321 1 $35.40
176 2U Inc TWOU DickDaddy 1 $41.49
110 AAR Corp. AIR paulo92834 4 $18.77
180 ACM Research Inc ACMR moveitover 1 $101.92
23 Activision Blizzard, Inc. ATVI Mondanivalo 12 $82.47
8 Advanced Micro Devices, Inc. AMD ArneGo, apqwer, LoveOfProfit 13 $84.85
28 Ageagle Aerial Systems Inc UAVS fishkillr 16 $3.26
205 Agraflora Organics International Inc AGRA spreeshark 1 $0.05
22 Air Canada TSE:AC priamXus 0 $15.73
19 Alexion Pharmaceuticals, Inc. ALXN fisk47 39 $103.28
70 Alibaba Group Holding Ltd - ADR BABA helio987, ScreeMart, Necessary_Club_6714 -1 $252.10
17 Ally Financial Inc ALLY jcurtis44 1 $21.47
24 Alteryx Inc AYX Kme2 30 $121.38
222 Altimmune Inc ALT Spes-Caritas 1 $27.38
117 Altria Group Inc MO ARGENT_UM_PUR, gm14202 1 $42.17
143 American Tower Corp AMT editviewgo 1 $257.61
175 American Water Works Company Inc AWK InfamousLegato 1 $149.79
183 Anglo Asian Mining LON:AAZ krenaldi1 1 $161.50
129 Aphria Inc APHA Aprhria, Bdghablig 1 $4.47
119 Apple Inc. AAPL tcldstnvdw -1 $444.45
184 Ares Capital Corporation ARCC ThemChecks 1 $14.87
54 ASML Holding NV ASML EthosPathosLegos, earthmoonsun 15 $366.07
113 Atlassian Corporation PLC TEAM shadowrckts 1 $170.93
224 Avalara Inc AVLR nomdeplume_alias 1 $122.71
244 Axon Enterprise Inc AAXN ansofteng 1 $83.88
150 Aytu Bioscience Inc AYTU Bkzkilla2, beefy-ambulance, subaruveganguy22 2 $1.38
236 Banco Bbva Argentina SA BBAR GAV17 1 $4.23
128 Bank of America Corp BAC oobydoobydoobydoo, wrs97 2 $26.11
247 BELLUS Health Inc BLU NhatNguyen2112 1 $2.74
29 Berkshire Hathaway Inc. Class B BRK.B Jeroen_Jrn, Cuza 31 $209.48
45 Best Buy Co Inc BBY 1madeamistake 2 $102.90
35 Beyond Meat Inc BYND Kreisensalat, Flipside 8 $131.51
33 BlackBerry Ltd BB mh1t, EthosPathosLegos 25 $4.84
208 Blackline Inc BL veebeew 2 $79.26
196 Booz Allen Hamilton Holding Corporation BAH i_smel_hookers 1 $84.67
75 Boston Beer Company Inc SAM Top_Island 2 $825.79
114 Brainstorm Cell Therapeutics Inc BCLI BigSexyTolo 2 $12.79
92 Brookfield Asset Management Inc BAM duongroi, Avaronah 2 $32.32
187 Brookfield Property Partners LP Unit BPY Onarco 1 $11.75
140 Brookfield Renewable Partners LP BEP YourPineapplePunch 1 $45.25
227 Cameco Corp CCJ jh4962772, Commandobolt, 3STmotivation 13 $10.37
109 Canadian Solar Inc. CSIQ MrMineHeads, vvv561 6 $25.32
204 Cardlytics Inc CDLX whossayn, YarManYak 2 $66.28
146 CBS Corporation Common Stock VIAC 1987supertramp 1 $26.21
74 CD PROJEKT S A/ADR OTGLY Thtb 8 $28.50
229 CDW common stock CDW plorfu 1 $114.77
95 CEL-SCI Corporation CVM Golden_Pineapple 1 $12.19
242 Chegg Inc CHGG Boots2243 1 $86.98
36 Cloudflare Inc NET thereisnospoongeek, olliemacg, Boots2243 220 $40.06
80 COLLIER CREEK H/SH CL A CCH RIC_FLAIR-WOOO 5 $13.84
246 Coty Inc COTY NhatNguyen2112 1 $4.00
209 Cresco Labs Inc CRLBF UncleSlippyFist 1 $6.28
3 Crispr Therapeutics AG CRSP emtvaikkajoku 98 $89.81
142 Crown Castle International Corp CCI jkgator 1 $168.19
16 CureVac Pending IPO Tangerinho 8 #N/A
223 CVS Health Corp CVS handsomeandsmart_ 2 $64.96
65 Cyberark Software Ltd CYBR Kevenam 2 $110.59
239 CytoDyn Inc CYDY dufmum 1 $4.79
165 Daqo New Energy Corp DQ stonk_daddy 1 $122.55
241 DexCom, Inc. DXCM InformalAid 1 $440.70
6 Dicerna Pharmaceuticals Inc DRNA earthmoonsun 7 $21.03
73 Digital Turbine Inc APPS toop4 6 $22.59
130 Docusign Inc DOCU h3ku, Teach-101 0 $204.76
185 Draftkings Inc DKNG boomshalock 1 $34.09
39 Drive Shack Inc DS Bobjenkins97 2 $1.65
4 Editas Medicine Inc EDIT earthmoonsun 7 $34.71
145 Edwards Lifesciences Corp EW TheTubbyOlive 1 $76.94
139 EHang Holdings Ltd - ADR EH TheEUR0PEAN 1 $9.21
230 Electrameccanica Vehicles Corp SOLO IHaveUsernameBlock 1 $3.07
118 Elevate Credit Inc ELVT ScoreFuture 1 $2.58
218 Else Nutrition Holdings Inc BABYF PringlesAreUs 1 $1.36
85 Empire State Realty Trust Inc ESRT silverpaw1786 4 $6.66
21 Enphase Energy Inc ENPH deGoblin 31 $72.84
197 Equinix Inc EQIX gce1010 3 $791.70
86 Essent Group Ltd ESNT veggie-man 1 $35.82
235 Etsy Inc ETSY PeskyShart 1 $135.06
84 Fastly Inc FSLY AwesomeMathUse 3 $79.33
93 Federal National Mortgage Association FNMA figbuilding, onkel_axel 2 $2.12
168 Fire & Flower Holdings Corp TSE:FAF tobcar 1 $1.01
207 First Mining Gold Corp FFMGF RecCenterBall 0 $0.41
219 FLIR Systems, Inc. FLIR zerokarma 1 $37.48
52 Fluor Corporation (NEW) FLR lost_searching 2 $11.38
90 FORUM MERGER II/SH CL A FMCI Mug_of_coffee 3 $14.53
81 Franco Nevada Corp FNV AwesomeMathUse 1 $153.57
155 FuelCell Energy Inc FCEL i-kno-nothing, dewaser 2 $2.68
98 Games Workshop Group PLC OTCMKTS:GMWKF MAUSECOP, Thenattylimit 2 $120.95
115 GameStop Corp. GME EmployerOfTheMonth 2 $4.16
200 Gan Ltd GAN emcdeezy22 2 $20.29
159 General Motors Company GM Buttershine_Beta -1 $26.72
251 Genius Brands International Inc GNUS due11 1 $1.59
156 GFL Environmental Inc GFL lenadunhamsbutthole 1 $21.56
99 Gilead Sciences, Inc. GILD Leroy--Brown 1 $69.35
138 GLB X FUNDS/HEALTH & WELLNESS T BFIT Venhuizer 2 $20.69
126 GLB X FUNDS/VIDEO GAMES & ESPORTS E HERO sgtyzi 1 $26.00
186 Golden Minerals Co AUMN YEEEEEAAAAA 1 $0.44
151 Gran Colombia Gold Corp TSE:GCM Linnake 0 $7.46
67 Grayscale Bitcoin Trust (Btc) GBTC asherlevi 2 $13.06
234 Great Panther Mining Ltd GPL Tony0x01 1 $0.93
152 H&R Real Estate Investment Trust HR.UN CaptainCanuck93 0 $10.34
122 Helen of Troy Limited HELE aa341 1 $201.26
55 Hikma Pharmaceuticals Plc HKMPF Marvins-Room 1 $31.08
20 Horizon Therapeutics PLC HZNP thesearchforanswer 3 $76.06
103 Huntington Ingalls Industries Inc HII howtoreadspaghetti 1 $167.90
9 IAC/Interactivecorp IAC dvdmovie1 36 $133.05
61 Ibio Inc IBIO PrairieDogger69 1 $3.80
101 Immunovia AB (publ) IMMNOV jennyther 3 $161.60
108 Ingles Markets, Incorporated IMKTA kimjungoon 1 $42.97
77 Inmode Ltd INMD meta-cognizant, craneman813 4 $31.77
123 Innovative Industrial Properties Inc IIPR Dalis_Ktm 1 $114.63
201 Inseego Corp INSG esoccer141414 1 $12.08
214 Inspire Medical Systems Inc INSP JPINFV2 1 $104.92
134 Intel Corporation INTC ionlypwn, TitanCrasher54, niknikniknikniknik1 5 $48.03
5 Intellia Therapeutics Inc NTLA earthmoonsun 7 $19.83
164 Intuitive Surgical, Inc. ISRG swalloforswallo 2 $685.85
252 INVESCO EXCHANG/SOLAR ETF TAN z74al 2 $51.20
71 InVitae Corp NVTA emtvaikkajoku, CrackHeadRodeo 6 $28.43
228 ISHARES TGLB CLEAN ENERGY ET ICLN drheman25Q 1 $15.88
112 John B. Sanfilippo & Son, Inc. JBSS chris011186 2 $89.24
171 JPMorgan Chase & Co. JPM wrs97 1 $99.38
58 Jumia Technologies AG - ADR JMIA Jerund, souptrades, 7YearOldCodPlayer, CharlieBrown364, fortnitehead 7 $19.26
144 Kaleyra Inc KLR souptrades 1 $5.87
158 KEFI Minerals plc LON:KEFI Scipio-Africannabis- 1 $1.88
216 Kirkland Lake Gold Ltd KL Newusername 1 $52.58
238 Kroger Co KR bxkrish 1 $35.24
2 Lemonade Inc LMND br1ghtness, skkreet, hahadumblloyd 4 $66.84
15 Limelight Networks, Inc. LLNW cyberdex, thug_funnie 3 $6.10
63 Livongo Health Inc LVGO staniel_diverson, Raybay192, Drifter 1996, moveitover 22 $120.88
182 Logitech International SA LOGI CharlieBrown364 1 $73.03
217 LONZA GRP AG/ADR LZAGY Fuck512 1 $62.92
66 Lydall, Inc. LDL Henisockle 1 $20.89
191 Macerich Co MAC skvettlappen 1 $7.85
97 Magnachip Semiconductor Corp MX samtony234 1 $12.08
233 Mamamancini's Holdings Inc MMMB Jayesslee 1 $1.70
88 Match Group Inc MTCH BallinLikeImKobe24 1 $115.88
79 Maverix Metals Inc MMX AwesomeMathUse 1 $4.61
107 Maxar Technologies Inc MAXR Borne2Run 1 $24.74
221 Mediwound Ltd MDWD blueblade408 1 $3.91
34 Mercadolibre Inc MELI pontoumporcento 14 $1,193.97
161 Micron Technology, Inc. MU Wexoch 3 $48.75
253 Microsoft Corporation MSFT TBSchemer 34 $212.48
179 Millicom International Cellular SA(SWE) STO:TIGO-SDB joseph460 1 $245.50
116 Mills Music Trust Unit OTCMKTS:MMTRS ARGENT_UM_PUR 1 $39.00
10 Molson Coors Beverage Co Class B TAP howtoreadspaghetti 1 $37.27
170 Morgan Stanley MS wrs97 1 $50.35
127 Naspers Limited NPSNY Demandredz 1 $34.60
11 Nathan's Famous, Inc. NATH howtoreadspaghetti 1 $51.25
181 NCR Corporation NCR IAMBEOWULFF, fistymonkey1337 4 $20.11
211 NESTLE S A/S ADR NSRGY suburban_robot 1 $118.47
124 New Relic Inc NEWR Dalis_Ktm 1 $53.62
249 New York Mortgage Trust Inc NYMT ToKeepAndToHoldForev 1 $2.77
162 New York Times Co NYT jonhuang 1 $45.61
69 Nio Inc - ADR NIO makesalotofmoney, Carrera_GT, Charlie Brown364 3 $13.42
59 Nokia Oyj NOK perfectriot, LiabilityFree 52 $4.98
37 Novacyt SA ALNOV Snoopmatt 1 $3.60
254 Nuance Communications Inc. NUAN IwantmyMTZ 1 $29.48
13 NVIDIA Corporation NVDA TBSchemer, friedtea15 66 $447.98
198 NVR, Inc. NVR Linnake 1 $3,875.01
154 Okta Inc OKTA Bcr731 3 $208.23
160 Opko Health Inc. OPK CS1026 1 $5.63
100 ORSTED A/S/ADR DNNGY BrentfordFC21 2 $47.37
190 Otonomy Inc OTIC Unlucky-Prize 1 $3.56
46 Oxford BioMedica plc OXB arabidopsis 12 $850.00
121 Pacific Ethanol Inc PEIX adamtejot 1 $2.69
220 Pagerduty Inc PD throthrowth 2 $29.85
25 Pan African Resources plc PAF Fruity_Pineapple 2 $26.30
245 Paradox Interactive AB (publ) OTCMKTS:PRXXF I_worship_odin 1 $24.30
174 Patriot One Technologies Inc PTOTF DanReynolds 1 $0.73
148 Peabody Energy Corporation BTU aviatoraway1 0 $2.52
237 Peloton Interactive Inc PTON loosetingles 1 $68.30
188 Penn National Gaming, Inc PENN Calpool 1 $49.00
87 Pershing Square Tontine Holdings, Ltd NYSE:PSTH-UN 5_yr_lurker 7 $21.08
31 Pharmacyte Biotech Inc PMCB DillieTheSquid 0 $0.01
47 Pinterest Inc PINS EthanPhan 10 $34.98
149 Planet 13 Holdings Inc PLNHF MMatter1 3 $2.67
43 Plug Power Inc PLUG lukwas_ 4 $11.28
147 Polaris Infrastructure Inc RAMPF CaptainCanuck93 1 $11.50
120 Prologis Inc PLD ImPinkSnail 5 $105.07
250 PROSHARES TULTRA MSCI JAPAN EZJ Necessary_Club_6714 1 $32.13
132 PROSHARES TULTRAPRO QQQ TQQQ iggy555, Guiterrezjm6 5 $126.99
48 Proto Labs Inc PRLB JEesSs 3 $130.13
166 Purple Innovation Inc PRPL jloy88, CharlieBrown364, RemiMartin 6 $23.95
44 Raytheon Technologies Corp RTX anon2019L 21 $61.23
210 Razer Inc RAZFF ThatOneRedditBro 1 $0.22
32 Realty Income Corp O bushysmalls 5 $62.72
199 Redfin Corp RDFN shreddit47 8 $43.69
206 RENAULT S A/ADR RNLSY jw8700 1 $5.33
178 Retractable Technologies, Inc. RVP EmreCanPuns 1 $10.18
94 Rigel Pharmaceuticals, Inc. RIGL Gay_Demons 1 $2.58
203 Rite Aid Corporation RAD ManagerMilkshake 1 $15.05
12 Rocky Mountain Chocolate Factory, Inc. RMCF howtoreadspaghetti 1 $3.20
163 Schrodinger Inc SDGR TipasaNuptials, asianmarysue, RattleGoreBitcoin 1 $71.17
72 Sea Ltd SE scatterblodded, tradeintel828384839, thug_funnie, Meymo 16 $129.00
215 ServiceNow Inc NOW cookingboy 1 $431.21
189 Shiloh Industries, Inc. SHLO brainbroked 1 $1.40
82 Shopify Inc SHOP AwesomeMathUse -1 $1,053.12
213 Sibanye Stillwater Ltd SBSW marqui4me 1 $11.39
231 Simulations Plus, Inc. SLP hellohi3 1 $65.83
173 SiTime Corp SITM drbh_ 1 $58.92
248 Six Flags Entertainment Corp SIX EthosPathosLegos 1 $18.38
202 Slack Technologies Inc WORK AntwanDixon_ 2 $28.95
51 SmileDirectClub Inc SDC meeni131 3 $9.05
49 Solaredge Technologies Inc SEDG m4r1vs 14 $211.47
27 Sony Corp SNE drorhac 13 $80.03
177 Sorrento Therapeutics Inc SRNE DowJonesLocker 1 $14.42
225 SPARTAN ENERGY /SH SPAQ bigsexy12 1 $12.36
40 Spirit Airlines Incorporated SAVE Matous_Palecek 0 $17.28
153 Spotify Technology SA SPOT _Hard4Jesus 0 $252.12
7 Square Inc SQ cuti95, ConstructivePlayer, Lfastrsx, jercky, CharlieBrown364 21 $147.22
1 StoneCo Ltd STNE GromGrommeta 73 $49.06
104 SunPower Corporation SPWR Hadouukken 1 $11.86
60 Sunrun Inc RUN FactualNeutronStar 2 $46.00
195 Switch Inc SWCH gce1010 1 $18.03
83 Taal Distributed Information Techs Inc TAAL AwesomeMathUse 1 $1.85
76 Taiwan Semiconductor Mfg. Co. Ltd. TSM Paks_12345, sogladatwork, BlissfulThinkr 13 $80.03
102 Tandem Diabetes Care Inc TNDM liao24 1 $104.15
169 Target Corporation TGT Kosher-Bacon 1 $131.75
26 Tesla Inc TSLA Skurinator, goldcakes, redmars1234, Drortmeyer2017 3 $1,452.71
137 TJX Companies Inc TJX princess-smartypants 3 $55.45
18 Toronto-Dominion Bank TD robbierox123 0 $45.77
141 TPI Composites Inc TPIC polwas 1 $28.81
53 Trade Desk Inc TTD all_hail_hypno, Kay312010 6 $493.20
106 TransMedics Group Inc TMDX DropoutEngy 1 $18.05
131 TransUnion TRU AndyCircus 0 $87.38
78 Travelcenters of America Inc TA jk_tilt 1 $17.27
226 Trevena Inc TRVN pacosteles 1 $2.38
243 Trulieve Cannabis Corp TCNNF grphelps1, Cucumber_Cooling 2 $18.83
38 Tupperware Brands Corporation TUP Scumbaggedfriends 1 $14.98
68 Turtle Beach Corp HEAR chancsc11 1 $18.37
62 Twilio Inc TWLO MarconianRex 8 $249.00
41 Uber Technologies Inc Uber DukeBD2021 -1 $32.90
96 Unibail-Rodamco-Westfield SE URW eams66 2 $42.44
125 Universal Display Corporation OLED niknikniknikniknik1 1 $186.51
64 Valero Energy Corporation VLO chickenandcheesefart 1 $52.66
133 Vanguard Total Stock Market Index Fund Admiral Shares VTSAX WackyBeachJustice 1 $82.67
135 Veeva Systems Inc VEEV JohnSpartans 3 $261.22
193 Ventas, Inc. VTR Unlucky-Prize 1 $41.52
57 VirnetX Holding Corporation VHC vyts18 2 $5.26
172 VMware, Inc. VMW kingbrow2020 1 $142.31
50 VolitionRX Ltd VNRX RiDDDiK1337 1 $3.35
91 Waitr Holdings Inc WTRH exstaticj 1 $5.15
14 Walker & Dunlop, Inc. WD TBSchemer 0 $57.70
167 Walmart Inc WMT anthonyjh21 6 $129.97
30 Walt Disney Co DIS jadenmc2189, biz_student 6 $129.93
192 WELL Health Technologies Corp TSE:WELL Unlucky-Prize, IcemanVish 2 $4.49
105 Wells Fargo & Co WFC yehdhbdjdjd 1 $25.07
240 Westinghouse Air Brake Technologies Corp WAB warman506 1 $67.23
42 Wizz Air Holdings PLC WIZZ Matous_Palecek 2 $3,412.00
157 Workhorse Group Inc WKHS VisionsDB 5 $16.52
89 Xebec Adsorption Inc. XBC Mug_of_coffee 3 $4.95
232 Xpel Inc XPEL Bkazzle 1 $20.06
212 Yeti Holdings Inc YETI boomwhackers 1 $50.40
136 Zagg Inc ZAGG ni_shi_shei 2 $3.98
56 Zoetis Inc ZTS BearBearChooey 19 $158.88
submitted by Kme2 to investing [link] [comments]

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]

Lition - $8 Million Dollar Market Cap With Real Use Right Now and a New Product They Are Developing Which Has Huge Potential.

Preface

I’m not usually one to shill my own coins but I’ve stolen a few good picks from this sub so I thought I’d share a new one I recently stumbled upon. Before I go into more details, I’d like to preface this by saying that I never invest in anything which I don’t think has the fundamentals to last at least 5-10 years and I don’t think this is a project which you will see a few hundred percent gains in a month or two. The hype isn’t there with this project and it’s more of a mid-long term play. If you want overnight gains, gamble on some of the smaller caps posted in this sub which are more like ponzi schemes riding on DeFi hype which you sell to a greater fool.

Introduction

Lition is a layer 2 blockchain infrastructure on top of Ethereum that enables commercial usage of dApps. The Lition protocol complements the Ethereum mainchain by adding features such as privacy, scalability and deletability for GDPR compliance. Everybody can choose to build on Lition without the need for permission.
In addition to the above, they also have a P2P energy trading platform currently operating and is supplying green power to customers in over 1000 towns and cities across Germany. Through their power platform, Lition customers are able to save about 20% on their monthly energy bill, while producers generate up to 30% higher profits since they are cutting out the middle men.
However, the real moonshot here is not their already successful smart energy platform (which utilises the same token) it is the enterprise layer 2 solution described in the quote above.
Their layer 2 enterprise infrastructure which is still in development will offer infinite scalability through sidechains and nodes staking LIT tokens on these sidechains. Block times will be fast at around 3 seconds and fees will be tiny fractions of a cent. However, the real selling point for enterprises will be that the data on these sidechains can be deleted and can be public or private, with private chains being validated via Zero-Knowledge proofs to verify that the private data is correct. This is huge and makes Lition a solution for a wide range of enterprise use cases due to these optional features. But it doesn’t stop there. Lition is also GDPR compliant - a big deal for Europe based enterprises and for the record, very very few blockchain solutions are GDPR compliant (I believe VeChain is one of the few other projects which are).

Important Bullet Points

Tokenomics

Their token has two primary uses. First, it is a utility token and they plan on making the LIT token the preferred payment method for all of the services on the Lition protocol. Secondly, it is used as collateral for staking which I can see locking up a large proportion of the supply in the future.
Unfortunately the circulating supply is currently 50% of the max supply but that said, coins like LINK have just 35% of the total tokens currently circulating, so relative to other projects, this isn’t too bad and many of the tokens are still to be earned by staking.

Conclusion

With their existing energy platform seeing real adoption and steady growth in Germany, in my opinion, this alone would be enough to justify their current market cap. However, I can see their second layer solution for enterprise being a really big deal in the future as protocol coins tend to accrue more value than utility tokens. As a versatile L2 solution for Ethereum, LIT gets the best of both worlds - adoption and network effects from Ethereum by helping it to scale as well as accruing value from the wide range of enterprise use cases which can be built on top of Lition. At just $8 million dollars in market cap, it seems to me that their work-in-progress L2 enterprise solution has not been priced in. However, due to a lack of hype and marketing right now, I don’t see LIT exploding in the short term. Rather, I can see it slowly outperforming ETH and climbing up the CMC rankings throughout this bullrun, much like Chainlink did in the bear market. Their building and partnerships over marketing strategy also reminds me when I held Chainlink back in 2018 when Sergey was busy building out the project rather than blowing their ICO money on marketing a bunch of vaporware like so many other projects.
Personally, I can see LIT becoming a top 100 project (not top 10) as it isn’t the first of an important new type of project like Chainlink was/is but it is an L2 protocol with unique advantages and selling points over other existing L2 projects which scatter the top 20-200 range. This would put the market cap at just under $120 million dollars which is a 15x from here. This is of course a valuation which assumes that the total crypto market cap remains where it is right now at just under $400 billion dollars. However, if BTC makes it to 100K and Ethereum gets to $5K then that is another 10x from here which compounds on any LIT/BTC or LIT/ETH ratio gains. In this scenario, a top 100 project would be worth around $1 BILLION DOLLARS by market cap which is over 100x from here and probably even more if ETH hits 10K and Bitcoin dominance falls back down to the 30% range or below towards the end of the bullrun. Disclaimer, the above figures are a theoretical best case scenario and are far from financial advice. They are my moonshot estimates which assumes all goes well for the project and the wider crypto space.
Website: https://www.lition.io/
CoinGecko: https://www.coingecko.com/en/coins/lition
Medium: https://medium.com/lition-blog

TL;DR

TL;DR: LIT has current real world use which is consistently growing with their P2P energy trading platform and has huge potential with their new L2 protocol for enterprise due to its unique features. They have a close partnership with SAP and are also partnered with Microsoft. Currently around #400 on CMC, my target is for LIT to be top 100 by the end of the bullrun.
Edit: Sorry 4chan, I didn't mean to shill one of your FUDed coins. Lit is a shitcoin scam, ignore this post.
submitted by Tricky_Troll to CryptoMoonShots [link] [comments]

I'm kinda ok with MCO -> CRO Swap; a indepth personal view

EDIT: this post https://www.reddit.com/Crypto_com/comments/i2yhuz/open_letter_to_kris_from_one_of_cdcs_biggest/ from u/CryptoMines expresses my sentiments and concerns better than I could ever put into words myself. I'd say read his/her post instead.
Very long post ahead, but TL;DR, I actually see this swap as a positive change, despite fearing for what it may do to my portofolio, and having mixed feelings about its consequences on CDC reputation.Before I start, for the sake of context and bias, here's my personal situation as a CDC user:
  1. I'm just a average Joe, with a 500 MCO Jade card. I bough 50 MCO at 5,22€ in September 2019 and staked for Ruby, then bough 440 MCO at 2.47€ in March 2020 and upgraded to Jade. The total amount of MCO I own is currently 515, and everything above the 500 stake is cashback rewards.
  2. I bought MCO exclusively for the card and bonus Earn interest benefits, and had no plans to unstake my MCO. Now with the swap, definetly won't unstake.
  3. The MCO -> CRO conversion rates increased the fiat value of my MCO in about 1000€.
  4. I own a decent amount of CRO, wich I bought at ~0,031€ in March 2020.
  5. The country where I live is crypto friendly and completely crypto-tax free; I only have to pay income tax if I deposit a certain threshold of fiat in my bank.
Take all these factors into account as possible (if not major) influencers or bias on my opinions; both the emotional and economical ones. Call me a fool or a devil's advocate if you want, but keep your torches and pitchforks down. As we say here on Reddit: "Remember the human".-----------------------------------------------------------------------------------------------------------------------------------------------------
Like all of you, I woke up to find this anouncement, wich came right the #[email protected] out of nowere, and gives you little to no options. Good or bad, this announcement arrived as basicly a "comply or die" choice. Emotionally, this came as both terrifying and disgusting; but rationally, I cannot blame CDC for it.
Because wether we like it or not, CDC is a centralized company, and the MCO tokens were never a stock or legally binding contract; something wich pretty much every crypto company or ICO warns in their T&C and risk warnings. Not to mention the mostly unregulated status of the cryptocurrency and. I'll call this "dishonest" any day, but I cannot see it as a "scammy" since I can't see how they broke any rules or terms.
A scammer would take your money/assets away, but CDC is offering you to swap it for another asset wich you can sell right away if you want. And at current price, it is still worth more or less as much fiat as MCO cost at the 5 $/€ wich was more or less the comunity standard used for calculating the card prices. And by that, I mean that the fiat value of 50/500/5000 MCO (as CRO) is actually not far from the 250/2500/25'000 $/€ that the comunity commonly used as standard when calculating the ROI and (under)valuation of MCO.
So CDC is at least trying to give us the option to get (some) our money back, and not at a unfair rate. If you happened to buy MCO at a price higher than this, I can't see how that's CDC's fault, just as I don't see anyone blaming Bitcoin or Altcoins for getting them stuck at the top of the 2017 bubble burst.
I read many posts in this reddit calling this a "backstab" and "betrayal" of early investors and for the people who "believed in MCO". Emotionally, I share your sentiment.But after thinking it for a while, I'd say this was actually very rewarding for early investors and long term MCO supporters. As CDC clearly sates in the swap rules; nobody is going to lose their card tier or MCO stake benefits (at least not yet), and your stake DOES NOT unstake automatically after 180 days. Actually, so far they never did unstake automatically, you had to manually unstake yourself.
With this in mind, everyone who already got their cards, or at least staked MCO to reserve one, basicly got them 3-5 times cheaper than future users; and IMHO, now the $/€ price of cards feels more fair and sustainable compared to their benefits.So in a sense, everyone who supported and believed on the MCO for its utility (i.e. the card and app benefits) has been greatly rewarded with perks that they get to keep, but are now out of reach for a lot of people.Likewise, the people who believed and invested in CRO (for whatever reason), have also been rewarded, as their CRO tokens now have more utility.
So either the price of CRO crashes down to around 0.05 $/€, or the people who bought MCO/CRO early or cheap are now massively benefited. But then again, so is everyone who bought or mined Bitcoin in its early days, or invested in Bitcoin at crucial points of its history... how is that unfair? Some people bought Ethereum at 1'400 $ on a mix of hopes/promises that it would continue to rise; it didn't. And even today with DeFi and ETH 2.0 ever closer, it is still far from that price.
And I know what some of you are thinking: "The cards aren't avaiable in my country yet, that's why I didn't buy/stake."Well, they weren't avaiable in my country either when I staked 50 MCO. Heck, the cards weren't avaiable in anyones country when MCO started, but many people still bought it and staked it. That's exacly what "early adopter", "long supporter" and "believing in MCO" means.
On the other hand, the people who invested on MCO as a speculative asset and decided to HODL and hoard MCO, hoping for its price to moon and then sell MCO at big profit, had their dreams mercilessly crushed by this swap... and good lord, I feel their pain.But this is also where I'll commit the sin of being judgemental, because IMHO, speculating on MCO never made any sense to me; MCO was a utility token, not a value token, so it should not (and could not) ever be worth more than the value of its utility. That's basicly how stablecoins and PAXG are able to stay stable; because nobody will pay more/less than the value of the asset/service they represent.
Tough now that I'm looking at the new card stake tiers in CRO, I have to give credit to the MCO hodlers I just now criticised; maybe you were right all along. Unless the price of CRO crashes or corrects, I wich case, I un-rest my case.
One thing I'll agree with everyone tough, is that I fell that CDC just suckerpunched it's comunity. Because even if we have no vote on its decisions (wich again, we aren't necessarily entitled to, since they are a privante and centralized business) they should/could have warned that this was in their plans well in advance; if anything to allow those who wouldn't like it to exit this train calmly.
Also the CRO stake duration reset. The mandatory reset of your CRO stake for taking advantage of the early swap bonus feels like another gut-punch.
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Now that we got emotional feelings out of the way, here's my sentiment about how this will affect the overall CDC ecossystem.
One common criticism of the sustainability of MCO was that its supply cap could never allow a large number of cards to be issued, and how could CDC keep paying the cashbacks and rebates. On the oposite corner, one of the major criticisms of the sustainability of CRO, was it's ridiculously huge supply cap and inflation caused by the gradual un-freezing and release of more CRO into the system.
But now that MCO and CRO became one, it might just have made both issues more sustainable. Now the huge supply cap of CRO makes more sense, as it allows a much larger number of future users to stake for cards (at higher costs, but still). And because most card cashback is small parcels, this large supply also ensures that CDC can keep paying said cashbacks for a long time; especially since it can be semi-renewable trough the trading fees we pay in CRO.
Before this, the MCO you got as cashback had no use, other than selling it for fiat or speculate on its price. But CRO can be used, at the very least, to receive a discount on trading fees. And everytime you pay trading fees in CRO or spend CRO on a Syndicate event, some of that CRO goes back to CDC, wich they can use to keep paying the cahsback/rebates.
And keep in mind, the technicalities of CRO can be changed, as well as the perks and utilities it can be used for. So even if this current model doesn't fix everything (wich it probably doesn't) it can still be changed to patch problems or expand its use.
Another obvious potentially positive outcome of this, is that now CDC only has to focus on 1 token, so it makes it easier to manage and drive its value. People complained that CDC was neglecting MCO over promoting CRO, but now they can focus on both services (cards/exchange) at the same time. Sure, this might not bring much advantage to the common customer, but its probably a major resource saver and optimizer at corporate levels; wich in the long term ultimately benefits its customers.
Much like Ethereum is undergoing major changes to ensure its scalability, the crypto companies themselves also have to change to acommodate the growing number of users, especially as the cryptomarket and DeFi are growing and becoming more competitive. Business strategies that were once successfull became obsolete, and exchanges that once held near-monopolies had to adjust to rising competitors. There is no reason why CDC shouldn't keep up with this, or at least try to.
Point is, the financial markets, crypto or otherwise, are not a status quo haven. And when something is wrong, something has to be changed, even if it costs. The very rise of cryptocurrencies and blockchain, wich is why we are here in the first place, is a perfect example of this, as it experiments and provides alternatives to legacy/traditional products and technologies.
Was this the best solution to its current problems? Is this what will protect us as customers from a potentially unsustainable business model? I have no idea.
This change ripped me too from my previous more or less relaxed status quo (the safety of the value of the CRO I bough for cheap), along with CRO late investors wich now probably fear for the devaluation of their CRO. To say nothing of the blow this represents for my trust (and I believe everyone elses trust) on CDC and its public relations. It's not what CDC did, it's how they did it.
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Wether you actually bothered to read all I wrote or just skip everything (can't blame you), I'm eager to hear your opinions and whatever criticisms on my opinions you may have.
If you just want to vent at me, you are welcome too; now you can raise your pitchforks and torches.
submitted by BoilingGarbage to Crypto_com [link] [comments]

Dragonchain Great Reddit Scaling Bake-Off Public Proposal

Dragonchain Great Reddit Scaling Bake-Off Public Proposal

Dragonchain Public Proposal TL;DR:

Dragonchain has demonstrated twice Reddit’s entire total daily volume (votes, comments, and posts per Reddit 2019 Year in Review) in a 24-hour demo on an operational network. Every single transaction on Dragonchain is decentralized immediately through 5 levels of Dragon Net, and then secured with combined proof on Bitcoin, Ethereum, Ethereum Classic, and Binance Chain, via Interchain. At the time, in January 2020, the entire cost of the demo was approximately $25K on a single system (transaction fees locked at $0.0001/txn). With current fees (lowest fee $0.0000025/txn), this would cost as little as $625.
Watch Joe walk through the entire proposal and answer questions on YouTube.
This proposal is also available on the Dragonchain blog.

Hello Reddit and Ethereum community!

I’m Joe Roets, Founder & CEO of Dragonchain. When the team and I first heard about The Great Reddit Scaling Bake-Off we were intrigued. We believe we have the solutions Reddit seeks for its community points system and we have them at scale.
For your consideration, we have submitted our proposal below. The team at Dragonchain and I welcome and look forward to your technical questions, philosophical feedback, and fair criticism, to build a scaling solution for Reddit that will empower its users. Because our architecture is unlike other blockchain platforms out there today, we expect to receive many questions while people try to grasp our project. I will answer all questions here in this thread on Reddit, and I've answered some questions in the stream on YouTube.
We have seen good discussions so far in the competition. We hope that Reddit’s scaling solution will emerge from The Great Reddit Scaling Bake-Off and that Reddit will have great success with the implementation.

Executive summary

Dragonchain is a robust open source hybrid blockchain platform that has proven to withstand the passing of time since our inception in 2014. We have continued to evolve to harness the scalability of private nodes, yet take full advantage of the security of public decentralized networks, like Ethereum. We have a live, operational, and fully functional Interchain network integrating Bitcoin, Ethereum, Ethereum Classic, and ~700 independent Dragonchain nodes. Every transaction is secured to Ethereum, Bitcoin, and Ethereum Classic. Transactions are immediately usable on chain, and the first decentralization is seen within 20 seconds on Dragon Net. Security increases further to public networks ETH, BTC, and ETC within 10 minutes to 2 hours. Smart contracts can be written in any executable language, offering full freedom to existing developers. We invite any developer to watch the demo, play with our SDK’s, review open source code, and to help us move forward. Dragonchain specializes in scalable loyalty & rewards solutions and has built a decentralized social network on chain, with very affordable transaction costs. This experience can be combined with the insights Reddit and the Ethereum community have gained in the past couple of months to roll out the solution at a rapid pace.

Response and PoC

In The Great Reddit Scaling Bake-Off post, Reddit has asked for a series of demonstrations, requirements, and other considerations. In this section, we will attempt to answer all of these requests.

Live Demo

A live proof of concept showing hundreds of thousands of transactions
On Jan 7, 2020, Dragonchain hosted a 24-hour live demonstration during which a quarter of a billion (250 million+) transactions executed fully on an operational network. Every single transaction on Dragonchain is decentralized immediately through 5 levels of Dragon Net, and then secured with combined proof on Bitcoin, Ethereum, Ethereum Classic, and Binance Chain, via Interchain. This means that every single transaction is secured by, and traceable to these networks. An attack on this system would require a simultaneous attack on all of the Interchained networks.
24 hours in 4 minutes (YouTube):
24 hours in 4 minutes
The demonstration was of a single business system, and any user is able to scale this further, by running multiple systems simultaneously. Our goals for the event were to demonstrate a consistent capacity greater than that of Visa over an extended time period.
Tooling to reproduce our demo is available here:
https://github.com/dragonchain/spirit-bomb

Source Code

Source code (for on & off-chain components as well tooling used for the PoC). The source code does not have to be shared publicly, but if Reddit decides to use a particular solution it will need to be shared with Reddit at some point.

Scaling

How it works & scales

Architectural Scaling

Dragonchain’s architecture attacks the scalability issue from multiple angles. Dragonchain is a hybrid blockchain platform, wherein every transaction is protected on a business node to the requirements of that business or purpose. A business node may be held completely private or may be exposed or replicated to any level of exposure desired.
Every node has its own blockchain and is independently scalable. Dragonchain established Context Based Verification as its consensus model. Every transaction is immediately usable on a trust basis, and in time is provable to an increasing level of decentralized consensus. A transaction will have a level of decentralization to independently owned and deployed Dragonchain nodes (~700 nodes) within seconds, and full decentralization to BTC and ETH within minutes or hours. Level 5 nodes (Interchain nodes) function to secure all transactions to public or otherwise external chains such as Bitcoin and Ethereum. These nodes scale the system by aggregating multiple blocks into a single Interchain transaction on a cadence. This timing is configurable based upon average fees for each respective chain. For detailed information about Dragonchain’s architecture, and Context Based Verification, please refer to the Dragonchain Architecture Document.

Economic Scaling

An interesting feature of Dragonchain’s network consensus is its economics and scarcity model. Since Dragon Net nodes (L2-L4) are independent staking nodes, deployment to cloud platforms would allow any of these nodes to scale to take on a large percentage of the verification work. This is great for scalability, but not good for the economy, because there is no scarcity, and pricing would develop a downward spiral and result in fewer verification nodes. For this reason, Dragonchain uses TIME as scarcity.
TIME is calculated as the number of Dragons held, multiplied by the number of days held. TIME influences the user’s access to features within the Dragonchain ecosystem. It takes into account both the Dragon balance and length of time each Dragon is held. TIME is staked by users against every verification node and dictates how much of the transaction fees are awarded to each participating node for every block.
TIME also dictates the transaction fee itself for the business node. TIME is staked against a business node to set a deterministic transaction fee level (see transaction fee table below in Cost section). This is very interesting in a discussion about scaling because it guarantees independence for business implementation. No matter how much traffic appears on the entire network, a business is guaranteed to not see an increased transaction fee rate.

Scaled Deployment

Dragonchain uses Docker and Kubernetes to allow the use of best practices traditional system scaling. Dragonchain offers managed nodes with an easy to use web based console interface. The user may also deploy a Dragonchain node within their own datacenter or favorite cloud platform. Users have deployed Dragonchain nodes on-prem on Amazon AWS, Google Cloud, MS Azure, and other hosting platforms around the world. Any executable code, anything you can write, can be written into a smart contract. This flexibility is what allows us to say that developers with no blockchain experience can use any code language to access the benefits of blockchain. Customers have used NodeJS, Python, Java, and even BASH shell script to write smart contracts on Dragonchain.
With Docker containers, we achieve better separation of concerns, faster deployment, higher reliability, and lower response times.
We chose Kubernetes for its self-healing features, ability to run multiple services on one server, and its large and thriving development community. It is resilient, scalable, and automated. OpenFaaS allows us to package smart contracts as Docker images for easy deployment.
Contract deployment time is now bounded only by the size of the Docker image being deployed but remains fast even for reasonably large images. We also take advantage of Docker’s flexibility and its ability to support any language that can run on x86 architecture. Any image, public or private, can be run as a smart contract using Dragonchain.

Flexibility in Scaling

Dragonchain’s architecture considers interoperability and integration as key features. From inception, we had a goal to increase adoption via integration with real business use cases and traditional systems.
We envision the ability for Reddit, in the future, to be able to integrate alternate content storage platforms or other financial services along with the token.
  • LBRY - To allow users to deploy content natively to LBRY
  • MakerDAO to allow users to lend small amounts backed by their Reddit community points.
  • STORJ/SIA to allow decentralized on chain storage of portions of content. These integrations or any other are relatively easy to integrate on Dragonchain with an Interchain implementation.

Cost

Cost estimates (on-chain and off-chain) For the purpose of this proposal, we assume that all transactions are on chain (posts, replies, and votes).
On the Dragonchain network, transaction costs are deterministic/predictable. By staking TIME on the business node (as described above) Reddit can reduce transaction costs to as low as $0.0000025 per transaction.
Dragonchain Fees Table

Getting Started

How to run it
Building on Dragonchain is simple and requires no blockchain experience. Spin up a business node (L1) in our managed environment (AWS), run it in your own cloud environment, or on-prem in your own datacenter. Clear documentation will walk you through the steps of spinning up your first Dragonchain Level 1 Business node.
Getting started is easy...
  1. Download Dragonchain’s dctl
  2. Input three commands into a terminal
  3. Build an image
  4. Run it
More information can be found in our Get started documents.

Architecture
Dragonchain is an open source hybrid platform. Through Dragon Net, each chain combines the power of a public blockchain (like Ethereum) with the privacy of a private blockchain.
Dragonchain organizes its network into five separate levels. A Level 1, or business node, is a totally private blockchain only accessible through the use of public/private keypairs. All business logic, including smart contracts, can be executed on this node directly and added to the chain.
After creating a block, the Level 1 business node broadcasts a version stripped of sensitive private data to Dragon Net. Three Level 2 Validating nodes validate the transaction based on guidelines determined from the business. A Level 3 Diversity node checks that the level 2 nodes are from a diverse array of locations. A Level 4 Notary node, hosted by a KYC partner, then signs the validation record received from the Level 3 node. The transaction hash is ledgered to the Level 5 public chain to take advantage of the hash power of massive public networks.
Dragon Net can be thought of as a “blockchain of blockchains”, where every level is a complete private blockchain. Because an L1 can send to multiple nodes on a single level, proof of existence is distributed among many places in the network. Eventually, proof of existence reaches level 5 and is published on a public network.

API Documentation

APIs (on chain & off)

SDK Source

Nobody’s Perfect

Known issues or tradeoffs
  • Dragonchain is open source and even though the platform is easy enough for developers to code in any language they are comfortable with, we do not have so large a developer community as Ethereum. We would like to see the Ethereum developer community (and any other communities) become familiar with our SDK’s, our solutions, and our platform, to unlock the full potential of our Ethereum Interchain. Long ago we decided to prioritize both Bitcoin and Ethereum Interchains. We envision an ecosystem that encompasses different projects to give developers the ability to take full advantage of all the opportunities blockchain offers to create decentralized solutions not only for Reddit but for all of our current platforms and systems. We believe that together we will take the adoption of blockchain further. We currently have additional Interchain with Ethereum Classic. We look forward to Interchain with other blockchains in the future. We invite all blockchains projects who believe in decentralization and security to Interchain with Dragonchain.
  • While we only have 700 nodes compared to 8,000 Ethereum and 10,000 Bitcoin nodes. We harness those 18,000 nodes to scale to extremely high levels of security. See Dragonchain metrics.
  • Some may consider the centralization of Dragonchain’s business nodes as an issue at first glance, however, the model is by design to protect business data. We do not consider this a drawback as these nodes can make any, none, or all data public. Depending upon the implementation, every subreddit could have control of its own business node, for potential business and enterprise offerings, bringing new alternative revenue streams to Reddit.

Costs and resources

Summary of cost & resource information for both on-chain & off-chain components used in the PoC, as well as cost & resource estimates for further scaling. If your PoC is not on mainnet, make note of any mainnet caveats (such as congestion issues).
Every transaction on the PoC system had a transaction fee of $0.0001 (one-hundredth of a cent USD). At 256MM transactions, the demo cost $25,600. With current operational fees, the same demonstration would cost $640 USD.
For the demonstration, to achieve throughput to mimic a worldwide payments network, we modeled several clients in AWS and 4-5 business nodes to handle the traffic. The business nodes were tuned to handle higher throughput by adjusting memory and machine footprint on AWS. This flexibility is valuable to implementing a system such as envisioned by Reddit. Given that Reddit’s daily traffic (posts, replies, and votes) is less than half that of our demo, we would expect that the entire Reddit system could be handled on 2-5 business nodes using right-sized containers on AWS or similar environments.
Verification was accomplished on the operational Dragon Net network with over 700 independently owned verification nodes running around the world at no cost to the business other than paid transaction fees.

Requirements

Scaling

This PoC should scale to the numbers below with minimal costs (both on & off-chain). There should also be a clear path to supporting hundreds of millions of users.
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
During Dragonchain’s 24 hour demo, the above required numbers were reached within the first few minutes.
Reddit’s total activity is 9000% more than Ethereum’s total transaction level. Even if you do not include votes, it is still 700% more than Ethereum’s current volume. Dragonchain has demonstrated that it can handle 250 million transactions a day, and it’s architecture allows for multiple systems to work at that level simultaneously. In our PoC, we demonstrate double the full capacity of Reddit, and every transaction was proven all the way to Bitcoin and Ethereum.
Reddit Scaling on Ethereum

Decentralization

Solutions should not depend on any single third-party provider. We prefer solutions that do not depend on specific entities such as Reddit or another provider, and solutions with no single point of control or failure in off-chain components but recognize there are numerous trade-offs to consider
Dragonchain’s architecture calls for a hybrid approach. Private business nodes hold the sensitive data while the validation and verification of transactions for the business are decentralized within seconds and secured to public blockchains within 10 minutes to 2 hours. Nodes could potentially be controlled by owners of individual subreddits for more organic decentralization.
  • Billing is currently centralized - there is a path to federation and decentralization of a scaled billing solution.
  • Operational multi-cloud
  • Operational on-premises capabilities
  • Operational deployment to any datacenter
  • Over 700 independent Community Verification Nodes with proof of ownership
  • Operational Interchain (Interoperable to Bitcoin, Ethereum, and Ethereum Classic, open to more)

Usability Scaling solutions should have a simple end user experience.

Users shouldn't have to maintain any extra state/proofs, regularly monitor activity, keep track of extra keys, or sign anything other than their normal transactions
Dragonchain and its customers have demonstrated extraordinary usability as a feature in many applications, where users do not need to know that the system is backed by a live blockchain. Lyceum is one of these examples, where the progress of academy courses is being tracked, and successful completion of courses is rewarded with certificates on chain. Our @Save_The_Tweet bot is popular on Twitter. When used with one of the following hashtags - #please, #blockchain, #ThankYou, or #eternalize the tweet is saved through Eternal to multiple blockchains. A proof report is available for future reference. Other examples in use are DEN, our decentralized social media platform, and our console, where users can track their node rewards, view their TIME, and operate a business node.
Examples:

Transactions complete in a reasonable amount of time (seconds or minutes, not hours or days)
All transactions are immediately usable on chain by the system. A transaction begins the path to decentralization at the conclusion of a 5-second block when it gets distributed across 5 separate community run nodes. Full decentralization occurs within 10 minutes to 2 hours depending on which interchain (Bitcoin, Ethereum, or Ethereum Classic) the transaction hits first. Within approximately 2 hours, the combined hash power of all interchained blockchains secures the transaction.

Free to use for end users (no gas fees, or fixed/minimal fees that Reddit can pay on their behalf)
With transaction pricing as low as $0.0000025 per transaction, it may be considered reasonable for Reddit to cover transaction fees for users.
All of Reddit's Transactions on Blockchain (month)
Community points can be earned by users and distributed directly to their Reddit account in batch (as per Reddit minting plan), and allow users to withdraw rewards to their Ethereum wallet whenever they wish. Withdrawal fees can be paid by either user or Reddit. This model has been operating inside the Dragonchain system since 2018, and many security and financial compliance features can be optionally added. We feel that this capability greatly enhances user experience because it is seamless to a regular user without cryptocurrency experience, yet flexible to a tech savvy user. With regard to currency or token transactions, these would occur on the Reddit network, verified to BTC and ETH. These transactions would incur the $0.0000025 transaction fee. To estimate this fee we use the monthly active Reddit users statista with a 60% adoption rate and an estimated 10 transactions per month average resulting in an approximate $720 cost across the system. Reddit could feasibly incur all associated internal network charges (mining/minting, transfer, burn) as these are very low and controllable fees.
Reddit Internal Token Transaction Fees

Reddit Ethereum Token Transaction Fees
When we consider further the Ethereum fees that might be incurred, we have a few choices for a solution.
  1. Offload all Ethereum transaction fees (user withdrawals) to interested users as they wish to withdraw tokens for external use or sale.
  2. Cover Ethereum transaction fees by aggregating them on a timed schedule. Users would request withdrawal (from Reddit or individual subreddits), and they would be transacted on the Ethereum network every hour (or some other schedule).
  3. In a combination of the above, customers could cover aggregated fees.
  4. Integrate with alternate Ethereum roll up solutions or other proposals to aggregate minting and distribution transactions onto Ethereum.

Bonus Points

Users should be able to view their balances & transactions via a blockchain explorer-style interface
From interfaces for users who have no knowledge of blockchain technology to users who are well versed in blockchain terms such as those present in a typical block explorer, a system powered by Dragonchain has flexibility on how to provide balances and transaction data to users. Transactions can be made viewable in an Eternal Proof Report, which displays raw data along with TIME staking information and traceability all the way to Bitcoin, Ethereum, and every other Interchained network. The report shows fields such as transaction ID, timestamp, block ID, multiple verifications, and Interchain proof. See example here.
Node payouts within the Dragonchain console are listed in chronological order and can be further seen in either Dragons or USD. See example here.
In our social media platform, Dragon Den, users can see, in real-time, their NRG and MTR balances. See example here.
A new influencer app powered by Dragonchain, Raiinmaker, breaks down data into a user friendly interface that shows coin portfolio, redeemed rewards, and social scores per campaign. See example here.

Exiting is fast & simple
Withdrawing funds on Dragonchain’s console requires three clicks, however, withdrawal scenarios with more enhanced security features per Reddit’s discretion are obtainable.

Interoperability Compatibility with third party apps (wallets/contracts/etc) is necessary.
Proven interoperability at scale that surpasses the required specifications. Our entire platform consists of interoperable blockchains connected to each other and traditional systems. APIs are well documented. Third party permissions are possible with a simple smart contract without the end user being aware. No need to learn any specialized proprietary language. Any code base (not subsets) is usable within a Docker container. Interoperable with any blockchain or traditional APIs. We’ve witnessed relatively complex systems built by engineers with no blockchain or cryptocurrency experience. We’ve also demonstrated the creation of smart contracts within minutes built with BASH shell and Node.js. Please see our source code and API documentation.

Scaling solutions should be extensible and allow third parties to build on top of it Open source and extensible
APIs should be well documented and stable

Documentation should be clear and complete
For full documentation, explore our docs, SDK’s, Github repo’s, architecture documents, original Disney documentation, and other links or resources provided in this proposal.

Third-party permissionless integrations should be possible & straightforward Smart contracts are Docker based, can be written in any language, use full language (not subsets), and can therefore be integrated with any system including traditional system APIs. Simple is better. Learning an uncommon or proprietary language should not be necessary.
Advanced knowledge of mathematics, cryptography, or L2 scaling should not be required. Compatibility with common utilities & toolchains is expected.
Dragonchain business nodes and smart contracts leverage Docker to allow the use of literally any language or executable code. No proprietary language is necessary. We’ve witnessed relatively complex systems built by engineers with no blockchain or cryptocurrency experience. We’ve also demonstrated the creation of smart contracts within minutes built with BASH shell and Node.js.

Bonus

Bonus Points: Show us how it works. Do you have an idea for a cool new use case for Community Points? Build it!

TIME

Community points could be awarded to Reddit users based upon TIME too, whereas the longer someone is part of a subreddit, the more community points someone naturally gained, even if not actively commenting or sharing new posts. A daily login could be required for these community points to be credited. This grants awards to readers too and incentivizes readers to create an account on Reddit if they browse the website often. This concept could also be leveraged to provide some level of reputation based upon duration and consistency of contribution to a community subreddit.

Dragon Den

Dragonchain has already built a social media platform that harnesses community involvement. Dragon Den is a decentralized community built on the Dragonchain blockchain platform. Dragon Den is Dragonchain’s answer to fake news, trolling, and censorship. It incentivizes the creation and evaluation of quality content within communities. It could be described as being a shareholder of a subreddit or Reddit in its entirety. The more your subreddit is thriving, the more rewarding it will be. Den is currently in a public beta and in active development, though the real token economy is not live yet. There are different tokens for various purposes. Two tokens are Lair Ownership Rights (LOR) and Lair Ownership Tokens (LOT). LOT is a non-fungible token for ownership of a specific Lair. LOT will only be created and converted from LOR.
Energy (NRG) and Matter (MTR) work jointly. Your MTR determines how much NRG you receive in a 24-hour period. Providing quality content, or evaluating content will earn MTR.

Security. Users have full ownership & control of their points.
All community points awarded based upon any type of activity or gift, are secured and provable to all Interchain networks (currently BTC, ETH, ETC). Users are free to spend and withdraw their points as they please, depending on the features Reddit wants to bring into production.

Balances and transactions cannot be forged, manipulated, or blocked by Reddit or anyone else
Users can withdraw their balance to their ERC20 wallet, directly through Reddit. Reddit can cover the fees on their behalf, or the user covers this with a portion of their balance.

Users should own their points and be able to get on-chain ERC20 tokens without permission from anyone else
Through our console users can withdraw their ERC20 rewards. This can be achieved on Reddit too. Here is a walkthrough of our console, though this does not show the quick withdrawal functionality, a user can withdraw at any time. https://www.youtube.com/watch?v=aNlTMxnfVHw

Points should be recoverable to on-chain ERC20 tokens even if all third-parties involved go offline
If necessary, signed transactions from the Reddit system (e.g. Reddit + Subreddit) can be sent to the Ethereum smart contract for minting.

A public, third-party review attesting to the soundness of the design should be available
To our knowledge, at least two large corporations, including a top 3 accounting firm, have conducted positive reviews. These reviews have never been made public, as Dragonchain did not pay or contract for these studies to be released.

Bonus points
Public, third-party implementation review available or in progress
See above

Compatibility with HSMs & hardware wallets
For the purpose of this proposal, all tokenization would be on the Ethereum network using standard token contracts and as such, would be able to leverage all hardware wallet and Ethereum ecosystem services.

Other Considerations

Minting/distributing tokens is not performed by Reddit directly
This operation can be automated by smart contract on Ethereum. Subreddits can if desired have a role to play.

One off point burning, as well as recurring, non-interactive point burning (for subreddit memberships) should be possible and scalable
This is possible and scalable with interaction between Dragonchain Reddit system and Ethereum token contract(s).

Fully open-source solutions are strongly preferred
Dragonchain is fully open source (see section on Disney release after conclusion).

Conclusion

Whether it is today, or in the future, we would like to work together to bring secure flexibility to the highest standards. It is our hope to be considered by Ethereum, Reddit, and other integrative solutions so we may further discuss the possibilities of implementation. In our public demonstration, 256 million transactions were handled in our operational network on chain in 24 hours, for the low cost of $25K, which if run today would cost $625. Dragonchain’s interoperable foundation provides the atmosphere necessary to implement a frictionless community points system. Thank you for your consideration of our proposal. We look forward to working with the community to make something great!

Disney Releases Blockchain Platform as Open Source

The team at Disney created the Disney Private Blockchain Platform. The system was a hybrid interoperable blockchain platform for ledgering and smart contract development geared toward solving problems with blockchain adoption and usability. All objective evaluation would consider the team’s output a success. We released a list of use cases that we explored in some capacity at Disney, and our input on blockchain standardization as part of our participation in the W3C Blockchain Community Group.
https://lists.w3.org/Archives/Public/public-blockchain/2016May/0052.html

Open Source

In 2016, Roets proposed to release the platform as open source to spread the technology outside of Disney, as others within the W3C group were interested in the solutions that had been created inside of Disney.
Following a long process, step by step, the team met requirements for release. Among the requirements, the team had to:
  • Obtain VP support and approval for the release
  • Verify ownership of the software to be released
  • Verify that no proprietary content would be released
  • Convince the organization that there was a value to the open source community
  • Convince the organization that there was a value to Disney
  • Offer the plan for ongoing maintenance of the project outside of Disney
  • Itemize competing projects
  • Verify no conflict of interest
  • Preferred license
  • Change the project name to not use the name Disney, any Disney character, or any other associated IP - proposed Dragonchain - approved
  • Obtain legal approval
  • Approval from corporate, parks, and other business units
  • Approval from multiple Disney patent groups Copyright holder defined by Disney (Disney Connected and Advanced Technologies)
  • Trademark searches conducted for the selected name Dragonchain
  • Obtain IT security approval
  • Manual review of OSS components conducted
  • OWASP Dependency and Vulnerability Check Conducted
  • Obtain technical (software) approval
  • Offer management, process, and financial plans for the maintenance of the project.
  • Meet list of items to be addressed before release
  • Remove all Disney project references and scripts
  • Create a public distribution list for email communications
  • Remove Roets’ direct and internal contact information
  • Create public Slack channel and move from Disney slack channels
  • Create proper labels for issue tracking
  • Rename internal private Github repository
  • Add informative description to Github page
  • Expand README.md with more specific information
  • Add information beyond current “Blockchains are Magic”
  • Add getting started sections and info on cloning/forking the project
  • Add installation details
  • Add uninstall process
  • Add unit, functional, and integration test information
  • Detail how to contribute and get involved
  • Describe the git workflow that the project will use
  • Move to public, non-Disney git repository (Github or Bitbucket)
  • Obtain Disney Open Source Committee approval for release
On top of meeting the above criteria, as part of the process, the maintainer of the project had to receive the codebase on their own personal email and create accounts for maintenance (e.g. Github) with non-Disney accounts. Given the fact that the project spanned multiple business units, Roets was individually responsible for its ongoing maintenance. Because of this, he proposed in the open source application to create a non-profit organization to hold the IP and maintain the project. This was approved by Disney.
The Disney Open Source Committee approved the application known as OSSRELEASE-10, and the code was released on October 2, 2016. Disney decided to not issue a press release.
Original OSSRELASE-10 document

Dragonchain Foundation

The Dragonchain Foundation was created on January 17, 2017. https://den.social/l/Dragonchain/24130078352e485d96d2125082151cf0/dragonchain-and-disney/
submitted by j0j0r0 to ethereum [link] [comments]

Decentr ($DEC) - foundational cross-chain and cross-platform DeFi protocol

  1. SUMMARY
Decentr is a protocol designed to make blockchain/DLT mainstream by allowing DeFi applications built on various blockchains to “talk to each other”. Decentr is a 100% secure and decentralised Web 3.0 protocol where users can apply PDV (personal data value) to increase APR on $DEC that users loan out as part of of our DeFi dLoan features, as well as it being applied at PoS when paying for stuff online. Decentr is also building a BAT competitor browser and Chrome/Firefox extension that acts as a gateway to 100% decentralised Web 3.0
Allows DeFi Dapps to access all Decentr’s dFintech features, including dLoan, dPay. Key innovation is that the protocols is based on a user’s ability to leverage the value of their data as exchangeable “currency”.
  1. KEY CONCEPTS

  1. REVENUE MODEL
A fee is charged for every transaction using dPay whereby an exchange takes place between money (fiat and digital) and data, and vice versa, either as part of DeFi features or via a dApp built on Decentr. They are launching pilot programmes in the following industries:
  1. Banking/PSP Industry: On Product launch, due to Decentr’s powerful PSP connections (including the worlds #2 PSP by volume), a medium-scale pilot program will be launched, which will seed the network with 150,000 PSP customers in primarily the Spanish/LAC markets, generating revenue from day one.
  2. “Bricks and Mortar” Supermarket/Grocery Industry: Decentr aims to ensure the long-term competitiveness of “bricks and mortar” supermarkets against online-only grocery retailers, such as Amazon, by a) building secure tech that allows supermarkets to digitise every aspect of their supply chains and operational functions, while b) allowing supermarkets to leverage this incredibly valuable data as a liquid asset class. Expected revenue by Year 5: $114Mn per year.
  3. Online Advertising Industry: Decentr’s 100% decentralised platform credits users secure data with payable value, in the form of PDV, for engaging with ads. The Brave browser was launched in 2012 and in 8 years has reached over 12 million monthly active users, accented by as many as 4.3 million daily active users.
  4. TOKEN $DEC AND SALE
Decentr recently complete their token sale on a purchase portal powered by Dolomite where they raised $974,000 in 10 minutes for a total sale hardcap of 1.25M. The $DEC token is actively trading on multiple exchanges including Uniswap and IDEX. Listed for free on IDEX, Hotbit, Hoo, Coinw, Tidex, BKex. Listed on CoinGecko and Coinmarketcap. Listed on Delta and Blockfolio apps.
➡️ Circulating supply: 61m $DEC.
➡️ Release schedule and token distribution LINK -> NO RELEASE UNTIL 2021.
➡️Contract Address - 0x30f271C9E86D2B7d00a6376Cd96A1cFBD5F0b9b3
➡️Decimals - 18, Ticker - DEC
➡️Uniswap link: https://uniswap.info/pai0x3AEEE5bA053eF8406420DbC5801fC95eC57b0E0A
⭐️ HOW TO BUY VIDEO: https://www.youtube.com/watch?v=iloAiv2oCRc&feature=youtu.be
$DEC Token utility:
A tradeable unit of value that is both internal and external to the Decentr platform.A unit of conversion between fiat entering and exiting the Decentr ecosystem.A way to capture the value of user data and combines the activity of every participant of the platform performing payment (dPay), or lending and borrowing (dLend), i.e a way to peg PDV to tangible/actionable value.Method of payment in the Decentr ecosystem.A method to internally underwrite the “Deconomy.
  1. NOTABLE SUPPORTERS
Simon Dedic - chief of Blockfyre: https://twitter.com/scoinaldo/status/1283787644221218817?s=20https://twitter.com/scoinaldo/status/1283719917657894912?s=21
Spectre Group Pick : https://twitter.com/SPECTREGRP/status/1284761576873041920https://twitter.com/llluckyl/status/1283765481716015111?s=21
Patrons of the Moon/Lil Uzi: https://t.me/patronsofthemoon/6764
CryptoGems: https://twitter.com/cryptogems_com/status/1283719318379925506?s=09t
tehMoonwalker pick who is a TOP 5 influencer per Binance:https://twitter.com/tehMoonwalkestatus/1284123961996050432?s=20https://twitter.com/binance/status/1279049822113198080
Holochain was one of their earliest supporters and they share a deep connection (recently an AMA was conducted in their TG group): https://medium.com/@DecentrNet/decentr-holochain-ama-29d662caed03
  1. UPCOMING NEWS
--------------------------------------------
  1. RESOURCES:
Website: https://decentr.net
Telegram: https://t.me/DecentrNet
Medium: https://medium.com/@DecentrNet
Twitter: https://twitter.com/DecentrNet
Whitepaper: https://decentr.net/files/Decentr_Whitepaper_V1.4.pdf
Technical Whitepaper: https://decentr.net/files/Decentr_Technical_Whitepaper_Data_As_Economic_Currency.pdf
Recent Articles:
⚡️- https://medium.com/@DecentrNet/decentr-token-sale-metrics-and-distribution-483bb3c58d05
⚡️- https://medium.com/@DecentrNet/how-decentrs-defi-dloan-function-benefits-dec-holders-97ff64a0c105
⚡️- https://medium.com/@DecentrNet/3-vertical-revenue-streams-decentr-is-targeting-4fa1f3dd62de
⚡️- https://medium.com/@DecentrNet/brave-browser-the-good-the-bad-and-the-fundamentally-misguided-8a8593b0ff5b
⚡️- https://medium.com/@DecentrNet/how-decentrs-dfintech-replaces-swift-sct-inst-clearing-house-and-other-payment-solutions-78acacbb4c3f
Chad Gang STRONG Community: https://t.me/decentrtrading
Community News Channel: https://t.me/chadnews
Recent Uniswap trades: https://t.me/dectrades
Wallet holder tracker: https://t.me/DEC_WALLETS_COUNT
submitted by ldd999 to CryptoMoonShots [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.
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