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Decentralized autonomous organization

A decentralized autonomous organization (DAO), sometimes called a decentralized autonomous corporation (DAC),[a] is an organization constructed by rules encoded as a computer program that is often transparent, controlled by the organization's members and not influenced by a central government. In general terms, DAOs are member-owned communities without centralized leadership.[1][2] A DAO's financial transaction records and program rules are maintained on a blockchain.[3][4][5] The precise legal status of this type of business organization is unclear.[6]

A well-known example, intended for venture capital funding, was The DAO, which amassed 3.6 million ether (ETH)—Ethereum's mining reward—then worth more than US$70 million in May 2016, and was hacked and drained of US$50 million in cryptocurrency weeks later.[7] The hack was reversed in the following weeks, and the money restored, via a hard fork of the Ethereum blockchain. Most Ethereum miners and clients switched to the new fork while the original chain became Ethereum Classic.

Background

Decentralized autonomous organizations are typified by the use of blockchain technology to provide a secure digital ledger to track digital interactions across the internet, hardened against forgery by trusted timestamping and dissemination of a distributed database.[3][4][8] This approach eliminates the need to involve a mutually acceptable trusted third party in any decentralized digital interaction or cryptocurrency transaction.[4] The costs of a blockchain-enabled transaction and of the associated data reporting may be substantially offset by the elimination of both the trusted third party and of the need for repetitive recording of contract exchanges in different records. For example, the blockchain data could, in principle and if regulatory structures permit it, replace public documents such as deeds and titles.[3]: 42 [4] In theory, a blockchain approach allows multiple cloud computing users to enter a loosely coupled peer-to-peer smart contract collaboration.[3]: 42 [9]

Vitalik Buterin proposed that after a DAO is launched, it might be organized to run without human managerial interactivity, provided the smart contracts are supported by a Turing-complete platform. Ethereum, built on a blockchain and launched in 2015, has been described as meeting that Turing threshold, thus enabling such DAOs.[3][10][11] Decentralized autonomous organizations aim to be open platforms through which individuals control their identities and their personal data.[12]

Governance

DAO governance is coordinated using tokens or NFTs that grant voting powers. Admission to a DAO is limited to people who have a confirmed ownership of these governance tokens in a cryptocurrency wallet, and membership may be exchanged. Governance is conducted through a series of proposals that members vote on through the blockchain, and the possession of more governance tokens often translates to greater voting power. Contributions from members towards the organizational goals of a DAO can sometimes be tracked and internally compensated. Inactive holders of governance tokens can be a major obstacle for DAO governance,[5] which has led to implementations of allowing voting power to be delegated to other parties.

Issues

Social

Inactive or non-voting shareholders in DAOs often disrupt the organization's possible functionality.[5]

Legal status, liability, and regulation

The precise legal status of this type of business organization is generally unclear,[8] and may vary by jurisdiction. On July 1, 2021, Wyoming became the first US state to recognize DAOs as a legal entity.[13] American CryptoFed DAO became the first business entity so recognized.[14] Some previous approaches to blockchain based companies have been regarded by the U.S. Securities and Exchange Commission as illegal offers of unregistered securities.[6][15] Although often of uncertain legal standing, a DAO may functionally be a corporation without legal status as a corporation: a general partnership.[16] Known participants, or those at the interface between a DAO and regulated financial systems, may be targets of regulatory enforcement or civil actions if they are out of compliance with the law.[16]

In June 2022, the venture capital firm Andreessen Horowitz published an "Entity selection framework" describing organizational alternatives for DAOs with substantial presence in the United States[17] .

Security

A DAO's code is difficult to alter once the system is up and running, including bug fixes that would be otherwise trivial in centralized code. Corrections to a DAO require writing new code and agreement to migrate all the funds. Although the code is visible to all, it is hard to repair, thus leaving known security holes open to exploitation unless a moratorium is called to enable bug fixing.[18]

In 2016, a specific DAO, "The DAO", set a record for the largest crowdfunding campaign to date.[19][20] Researchers pointed out multiple problems with The DAO's code. The DAO's operational procedure allowed investors to withdraw at will any money that had not yet been committed to a project; the funds could thus deplete quickly.[5] Although safeguards aimed to prevent gaming shareholders' votes to win investments,[6] there were a "number of security vulnerabilities".[21] These enabled an attempted large withdrawal of funds from The DAO to be initiated in mid-June 2016.[22][23] On July 20, 2016, the Ethereum blockchain was forked to bail out the original contract.

DAOs can be subject to coups or hostile takeovers that upend its voting structures especially if the voting power is based upon the number of tokens one owns. An example of this occurred in 2022, when one individual collected enough tokens to give themselves voting control over Build Finance DAO, which they then used to drain the DAO of all its money.[24]

List of notable DAOs

Name Token Use cases Network Launch Status
The DAO DAO Venture capital Ethereum April 2016 Defunct late 2016 due to hack[25]
ConstitutionDAO PEOPLE Purchasing an original copy of the Constitution of the United States Ethereum November 2021[26] Defunct[27]
CityDAO CITIZEN Purchased 40 acres of land in Wyoming Ethereum July 2021 Operational
Krause Hause KRAUSE Purchasing a basketball team Ethereum November 2021 Operational
PleasrDAO PEEPS A group of art collectors who own the sole copy of a Wu Tang Clan album[28] Ethereum April 2021 Operational
UkraineDAO UKRAINE A group pooling capital to fund the Ukrainian defense effort Ethereum February 2022 Operational
FreeRossDAO[29] FREE Clemency for Ross Ulbricht, criminal justice reform advocacy organization Ethereum December 2021[30] Operational[citation needed]
AssangeDAO JUSTICE[31] Purchased Clock, an NFT artwork by Pak, to fund legal defense of WikiLeaks' founder Julian Assange Ethereum February 2022[32] Operational
MakerDAO[33] MKR Lender, stablecoin creator Ethereum December 2017 Operational
MoonDAO[34] MOONEY Purchased tickets to send members to space on flights NS-22 and NS-24 Ethereum November 2021 Operational
Uniswap UNI Exchange, Automated Market Making Ethereum & Celo November 2018 Operational[35]
Aave AAVE Lender, stablecoin creator Multiple networks January 2017 Operational
LunchDAO LUNCH Bidding for "Buffett's Lunch" Ethereum May 2022 Operational
Montelibero MTL Creation of a free society of Europe in Montenegro Stellar April 2021 Operational
CULT DAO[36] CULT Investment proposals from the 50 top CULT holder (Cultmander)

must be confirmed by the community (teh many)

Ethereum February 2022 Operational

See also

Notes

  1. ^ Depending on English dialect, it may also be spelled decentralised autonomous organisation. The terms decentralized autonomous company, distributed autonomous organization, etc., have also been used.

References

  1. ^ Prusty, Narayan (27 April 2017). Building Blockchain Projects. Birmingham, UK: Packt. p. 9. ISBN 9781787125339.
  2. ^ The Decentralized Autonomous Organization and Governance Issues Regulation of Financial Institutions Journal: Social Science Research Network (SSRN). 5 December 2017.
  3. ^ a b c d e Vigna, P.; Casey, M. J. (27 January 2015). The Age of Cryptocurrency: How Bitcoin and the Blockchain Are Challenging the Global Economic Order. St. Martin's Press. ISBN 9781250065636.
  4. ^ a b c d Hodson, H. (20 November 2013). "Bitcoin moves beyond mere money". New Scientist.
  5. ^ a b c d "The DAO of accrue: A new, automated investment fund has attracted stacks of digital money". The Economist. 21 May 2016.
  6. ^ a b c Popper, N. (21 May 2016). "A Venture Fund with Plenty of Virtual Capital, but No Capitalist". New York Times.
  7. ^ Price, Rob (17 June 2016). "Digital currency Ethereum is cratering amid claims of a $50 million hack". Business Insider. Retrieved 17 June 2016.
  8. ^ a b Wright, A; De Filippi, P. (10 March 2015). "Decentralized Blockchain Technology and the Rise of Lex Cryptographia". SSRN 2580664.
  9. ^ Norta, A. (18 August 2015). "Creation of Smart-Contracting Collaborations for Decentralized Autonomous Organizations". Perspectives in Business Informatics Research. Lecture Notes in Business Information Processing. Vol. 229. pp. 3–17.
  10. ^ Pangburn, D. J. (19 June 2015). "The Humans Who Dream of Companies That Won't Need Us". FastCompany.
  11. ^ Evans, J. (1 August 2015). "Vapor No More: Ethereum Has Launched". TechCrunch.
  12. ^ Deegan, P. (2014). "Chapter 14—The Relational Matrix: The Free and Emergent Organizations of Digital Groups and Identities". In Clippinger, J. H.; Bollier, D. (eds.). From Bitcoin to Burning Man and Beyond: The Quest for Identity and Autonomy in a Digital Society. Amherst, Massachusetts. pp. 160–176]. ISBN 978-1-937146-58-0. creating an operational and autonomous Trust Framework [that can i]ntegrate with a secure discovery service in the form of a Decentralized Autonomous Organization ...
  13. ^ "Decentralized Autonomous Organizations Find a Home in Wyoming". JD Supra. Retrieved 9 July 2021.
  14. ^ "Wyoming becomes first US state to legally recognise DAO". finance.yahoo.com. Retrieved 9 July 2021.
  15. ^ "SEC Charges Bitcoin Entrepreneur With Offering Unregistered Securities". US Securities and Exchange Commission. 3 June 2014.
  16. ^ a b Levine, M. (17 May 2016). "Blockchain Company Wants to Reinvent Companies". Bloomberg View: Wall Street. Bloomberg News.
  17. ^ "A Legal Framework for Decentralized Autonomous Organizations, Part II: Entity Selection Framework" (PDF). Retrieved 13 June 2022.
  18. ^ Peck, M. (28 May 2016). "Ethereum's $150-million Blockchain-powered Fund Opens Just as Researchers Call For a Halt". IEEE Spectrum. Institute of Electrical and Electronics Engineers.
  19. ^ Vigna, P. (16 May 2016). "Chiefless Company Rakes in More Than $100 Million". Wall Street Journal.
  20. ^ Waters, R. (17 May 2016). "Automated company raises equivalent of $120M in digital currency". Financial Times.
  21. ^ Popper, N. (27 May 2016). "Paper Points Up Flaws in Venture Fund Based on Virtual Money". The New York Times.
  22. ^ Popper, N. (17 June 2016). "Hacker May Have Taken $50 Million From Cybercurrency Project". New York Times.
  23. ^ Price, R. (17 June 2016). "Digital currency Ethereum is cratering amid claims of a $50 million hack". Business Insider. Retrieved 17 June 2016.
  24. ^ "Democratic DAO Suffers Coup, New Leader Steals Everything - VICE". www.vice.com. Retrieved 16 February 2022.
  25. ^ Finley, Klint (18 June 2016). "Someone Just Stole $50 Million from the Biggest Crowdfunded Project Ever (Humans Can't Be Trusted)". Wired. ISSN 1059-1028. Retrieved 16 November 2019.
  26. ^ Roose, Kevin (17 November 2021). "They Love Crypto. They're Trying to Buy the Constitution". The New York Times. ISSN 0362-4331. Retrieved 17 November 2021.
  27. ^ Fox, Matthew (19 January 2022). "Tokens of the defunct DAO that failed to buy a copy of the constitution are worth $300 million even after disbanding". news.yahoo.com. Retrieved 28 January 2022.
  28. ^ Leight, Elias (20 October 2021). "Revealed: The Crypto Fans Who Secretly Paid $4 Million for Pharma Bro's Wu-Tang Album". Rolling Stone. Retrieved 9 November 2022.
  29. ^ Collier, Kevin. "NFT of Silk Road founder's art sells for more than $6 million". www.nbcnews.com. NBC News. Retrieved 10 May 2022.
  30. ^ Mak, Aaron (25 January 2022). "Ross Ulbricht Went to Jail for Letting People Buy Drugs With Bitcoin. Can These Crypto Obsessives Get Him Out?". slate.com. Slate. Retrieved 10 May 2022.
  31. ^ "Justice Token". AssangeDAO. Retrieved 14 April 2022.
  32. ^ Reuters (9 February 2022). "'Cypherpunks have rallied to Assange': NFT auction raises $52m for WikiLeaks founder". The Guardian. {{cite news}}: |last1= has generic name (help)
  33. ^ Ehrlich, Steven. "How Crypto's Original Bubble Boy Rode Ethereum And Is Now Pulling The Strings Of The DeFi Boom". Forbes. Retrieved 20 July 2022.
  34. ^ News, Zenger. "The Crypto Community That's Going To The Moon - Literally". Forbes. Retrieved 11 November 2022. {{cite web}}: |last= has generic name (help)
  35. ^ "OpenOrgs.info". openorgs.info. Retrieved 15 January 2022.
  36. ^ [1], Cult DAO project Website

External links

  •   Learning materials related to Decentralized autonomous organization at Wikiversity

decentralized, autonomous, organization, this, article, about, type, organization, former, organization, that, followed, this, approach, organization, decentralized, autonomous, organization, sometimes, called, decentralized, autonomous, corporation, organizat. This article is about a type of organization For the former organization that followed this approach see The DAO organization A decentralized autonomous organization DAO sometimes called a decentralized autonomous corporation DAC a is an organization constructed by rules encoded as a computer program that is often transparent controlled by the organization s members and not influenced by a central government In general terms DAOs are member owned communities without centralized leadership 1 2 A DAO s financial transaction records and program rules are maintained on a blockchain 3 4 5 The precise legal status of this type of business organization is unclear 6 A well known example intended for venture capital funding was The DAO which amassed 3 6 million ether ETH Ethereum s mining reward then worth more than US 70 million in May 2016 and was hacked and drained of US 50 million in cryptocurrency weeks later 7 The hack was reversed in the following weeks and the money restored via a hard fork of the Ethereum blockchain Most Ethereum miners and clients switched to the new fork while the original chain became Ethereum Classic Contents 1 Background 2 Governance 3 Issues 3 1 Social 3 2 Legal status liability and regulation 3 3 Security 4 List of notable DAOs 5 See also 6 Notes 7 References 8 External linksBackground EditDecentralized autonomous organizations are typified by the use of blockchain technology to provide a secure digital ledger to track digital interactions across the internet hardened against forgery by trusted timestamping and dissemination of a distributed database 3 4 8 This approach eliminates the need to involve a mutually acceptable trusted third party in any decentralized digital interaction or cryptocurrency transaction 4 The costs of a blockchain enabled transaction and of the associated data reporting may be substantially offset by the elimination of both the trusted third party and of the need for repetitive recording of contract exchanges in different records For example the blockchain data could in principle and if regulatory structures permit it replace public documents such as deeds and titles 3 42 4 In theory a blockchain approach allows multiple cloud computing users to enter a loosely coupled peer to peer smart contract collaboration 3 42 9 Vitalik Buterin proposed that after a DAO is launched it might be organized to run without human managerial interactivity provided the smart contracts are supported by a Turing complete platform Ethereum built on a blockchain and launched in 2015 has been described as meeting that Turing threshold thus enabling such DAOs 3 10 11 Decentralized autonomous organizations aim to be open platforms through which individuals control their identities and their personal data 12 Governance EditDAO governance is coordinated using tokens or NFTs that grant voting powers Admission to a DAO is limited to people who have a confirmed ownership of these governance tokens in a cryptocurrency wallet and membership may be exchanged Governance is conducted through a series of proposals that members vote on through the blockchain and the possession of more governance tokens often translates to greater voting power Contributions from members towards the organizational goals of a DAO can sometimes be tracked and internally compensated Inactive holders of governance tokens can be a major obstacle for DAO governance 5 which has led to implementations of allowing voting power to be delegated to other parties Issues EditSocial Edit Inactive or non voting shareholders in DAOs often disrupt the organization s possible functionality 5 Legal status liability and regulation Edit The precise legal status of this type of business organization is generally unclear 8 and may vary by jurisdiction On July 1 2021 Wyoming became the first US state to recognize DAOs as a legal entity 13 American CryptoFed DAO became the first business entity so recognized 14 Some previous approaches to blockchain based companies have been regarded by the U S Securities and Exchange Commission as illegal offers of unregistered securities 6 15 Although often of uncertain legal standing a DAO may functionally be a corporation without legal status as a corporation a general partnership 16 Known participants or those at the interface between a DAO and regulated financial systems may be targets of regulatory enforcement or civil actions if they are out of compliance with the law 16 In June 2022 the venture capital firm Andreessen Horowitz published an Entity selection framework describing organizational alternatives for DAOs with substantial presence in the United States 17 Security Edit A DAO s code is difficult to alter once the system is up and running including bug fixes that would be otherwise trivial in centralized code Corrections to a DAO require writing new code and agreement to migrate all the funds Although the code is visible to all it is hard to repair thus leaving known security holes open to exploitation unless a moratorium is called to enable bug fixing 18 In 2016 a specific DAO The DAO set a record for the largest crowdfunding campaign to date 19 20 Researchers pointed out multiple problems with The DAO s code The DAO s operational procedure allowed investors to withdraw at will any money that had not yet been committed to a project the funds could thus deplete quickly 5 Although safeguards aimed to prevent gaming shareholders votes to win investments 6 there were a number of security vulnerabilities 21 These enabled an attempted large withdrawal of funds from The DAO to be initiated in mid June 2016 22 23 On July 20 2016 the Ethereum blockchain was forked to bail out the original contract DAOs can be subject to coups or hostile takeovers that upend its voting structures especially if the voting power is based upon the number of tokens one owns An example of this occurred in 2022 when one individual collected enough tokens to give themselves voting control over Build Finance DAO which they then used to drain the DAO of all its money 24 List of notable DAOs EditThis is a dynamic list and may never be able to satisfy particular standards for completeness You can help by adding missing items with reliable sources Name Token Use cases Network Launch StatusThe DAO DAO Venture capital Ethereum April 2016 Defunct late 2016 due to hack 25 ConstitutionDAO PEOPLE Purchasing an original copy of the Constitution of the United States Ethereum November 2021 26 Defunct 27 CityDAO CITIZEN Purchased 40 acres of land in Wyoming Ethereum July 2021 OperationalKrause Hause KRAUSE Purchasing a basketball team Ethereum November 2021 OperationalPleasrDAO PEEPS A group of art collectors who own the sole copy of a Wu Tang Clan album 28 Ethereum April 2021 OperationalUkraineDAO UKRAINE A group pooling capital to fund the Ukrainian defense effort Ethereum February 2022 OperationalFreeRossDAO 29 FREE Clemency for Ross Ulbricht criminal justice reform advocacy organization Ethereum December 2021 30 Operational citation needed AssangeDAO JUSTICE 31 Purchased Clock an NFT artwork by Pak to fund legal defense of WikiLeaks founder Julian Assange Ethereum February 2022 32 OperationalMakerDAO 33 MKR Lender stablecoin creator Ethereum December 2017 OperationalMoonDAO 34 MOONEY Purchased tickets to send members to space on flights NS 22 and NS 24 Ethereum November 2021 OperationalUniswap UNI Exchange Automated Market Making Ethereum amp Celo November 2018 Operational 35 Aave AAVE Lender stablecoin creator Multiple networks January 2017 OperationalLunchDAO LUNCH Bidding for Buffett s Lunch Ethereum May 2022 OperationalMontelibero MTL Creation of a free society of Europe in Montenegro Stellar April 2021 OperationalCULT DAO 36 CULT Investment proposals from the 50 top CULT holder Cultmander must be confirmed by the community teh many Ethereum February 2022 OperationalSee also EditDecentralized application Decentralized computing Distributed computing Incentive centered design List of highest funded crowdfunding projects Smart contract The Social Contract Open value networkNotes Edit Depending on English dialect it may also be spelled decentralised autonomous organisation The terms decentralized autonomous company distributed autonomous organization etc have also been used References Edit Prusty Narayan 27 April 2017 Building Blockchain Projects Birmingham UK Packt p 9 ISBN 9781787125339 The Decentralized Autonomous Organization and Governance Issues Regulation of Financial Institutions Journal Social Science Research Network SSRN 5 December 2017 a b c d e Vigna P Casey M J 27 January 2015 The Age of Cryptocurrency How Bitcoin and the Blockchain Are Challenging the Global Economic Order St Martin s Press ISBN 9781250065636 a b c d Hodson H 20 November 2013 Bitcoin moves beyond mere money New Scientist a b c d The DAO of accrue A new automated investment fund has attracted stacks of digital money The Economist 21 May 2016 a b c Popper N 21 May 2016 A Venture Fund with Plenty of Virtual Capital but No Capitalist New York Times Price Rob 17 June 2016 Digital currency Ethereum is cratering amid claims of a 50 million hack Business Insider Retrieved 17 June 2016 a b Wright A De Filippi P 10 March 2015 Decentralized Blockchain Technology and the Rise of Lex Cryptographia SSRN 2580664 Norta A 18 August 2015 Creation of Smart Contracting Collaborations for Decentralized Autonomous Organizations Perspectives in Business Informatics Research Lecture Notes in Business Information Processing Vol 229 pp 3 17 Pangburn D J 19 June 2015 The Humans Who Dream of Companies That Won t Need Us FastCompany Evans J 1 August 2015 Vapor No More Ethereum Has Launched TechCrunch Deegan P 2014 Chapter 14 The Relational Matrix The Free and Emergent Organizations of Digital Groups and Identities In Clippinger J H Bollier D eds From Bitcoin to Burning Man and Beyond The Quest for Identity and Autonomy in a Digital Society Amherst Massachusetts pp 160 176 ISBN 978 1 937146 58 0 creating an operational and autonomous Trust Framework that can i ntegrate with a secure discovery service in the form of a Decentralized Autonomous Organization Decentralized Autonomous Organizations Find a Home in Wyoming JD Supra Retrieved 9 July 2021 Wyoming becomes first US state to legally recognise DAO finance yahoo com Retrieved 9 July 2021 SEC Charges Bitcoin Entrepreneur With Offering Unregistered Securities US Securities and Exchange Commission 3 June 2014 a b Levine M 17 May 2016 Blockchain Company Wants to Reinvent Companies Bloomberg View Wall Street Bloomberg News A Legal Framework for Decentralized Autonomous Organizations Part II Entity Selection Framework PDF Retrieved 13 June 2022 Peck M 28 May 2016 Ethereum s 150 million Blockchain powered Fund Opens Just as Researchers Call For a Halt IEEE Spectrum Institute of Electrical and Electronics Engineers Vigna P 16 May 2016 Chiefless Company Rakes in More Than 100 Million Wall Street Journal Waters R 17 May 2016 Automated company raises equivalent of 120M in digital currency Financial Times Popper N 27 May 2016 Paper Points Up Flaws in Venture Fund Based on Virtual Money The New York Times Popper N 17 June 2016 Hacker May Have Taken 50 Million From Cybercurrency Project New York Times Price R 17 June 2016 Digital currency Ethereum is cratering amid claims of a 50 million hack Business Insider Retrieved 17 June 2016 Democratic DAO Suffers Coup New Leader Steals Everything VICE www vice com Retrieved 16 February 2022 Finley Klint 18 June 2016 Someone Just Stole 50 Million from the Biggest Crowdfunded Project Ever Humans Can t Be Trusted Wired ISSN 1059 1028 Retrieved 16 November 2019 Roose Kevin 17 November 2021 They Love Crypto They re Trying to Buy the Constitution The New York Times ISSN 0362 4331 Retrieved 17 November 2021 Fox Matthew 19 January 2022 Tokens of the defunct DAO that failed to buy a copy of the constitution are worth 300 million even after disbanding news yahoo com Retrieved 28 January 2022 Leight Elias 20 October 2021 Revealed The Crypto Fans Who Secretly Paid 4 Million for Pharma Bro s Wu Tang Album Rolling Stone Retrieved 9 November 2022 Collier Kevin NFT of Silk Road founder s art sells for more than 6 million www nbcnews com NBC News Retrieved 10 May 2022 Mak Aaron 25 January 2022 Ross Ulbricht Went to Jail for Letting People Buy Drugs With Bitcoin Can These Crypto Obsessives Get Him Out slate com Slate Retrieved 10 May 2022 Justice Token AssangeDAO Retrieved 14 April 2022 Reuters 9 February 2022 Cypherpunks have rallied to Assange NFT auction raises 52m for WikiLeaks founder The Guardian a href Template Cite news html title Template Cite news cite news a last1 has generic name help Ehrlich Steven How Crypto s Original Bubble Boy Rode Ethereum And Is Now Pulling The Strings Of The DeFi Boom Forbes Retrieved 20 July 2022 News Zenger The Crypto Community That s Going To The Moon Literally Forbes Retrieved 11 November 2022 a href Template Cite web html title Template Cite web cite web a last has generic name help OpenOrgs info openorgs info Retrieved 15 January 2022 1 Cult DAO project WebsiteExternal links Edit Learning materials related to Decentralized autonomous organization at Wikiversity Retrieved from https en wikipedia org w index php title Decentralized autonomous organization amp oldid 1130426209, wikipedia, wiki, book, books, library,

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