Cardano (blockchain platform)
In 2015, Charles Hoskinson and Jeremy Wood set out to establish Cardano after leaving Ethereum the previous year. Hoskinson had departed following a dispute with co-founder Vitalik Buterin over whether to accept venture capital funding. While Buterin preferred keeping Ethereum as a nonprofit organization, Hoskinson wanted to create a company structure. The two men founded IOHK to develop blockchains for corporations, governments, and educational institutions. This new platform launched publicly in 2017 as the largest cryptocurrency using proof of stake technology at that time. The project took its name from Italian mathematician Gerolamo Cardano while the native token ADA honors English mathematician Ada Lovelace.
Cardano uses a unique proof-of-stake protocol called Ouroboros instead of traditional proof-of-work systems. This approach eliminates the massive computing resources required by Bitcoin mining operations. In February 2021, Hoskinson estimated the network consumed just 6GWh annually compared to Bitcoin's 110.53 TWh usage. The platform divides time into slots of roughly 20 seconds within epochs lasting approximately five days. Unlike many other cryptocurrencies, Cardano lacks a formal white paper and relies on design principles addressing scalability and regulatory compliance issues. The system maintains an extended UTXO ledger model similar to Bitcoin but enhanced for smart contracts and scripting languages.
The blockchain rolled out through five distinct phases named after poetry and computer science figures: Byron, Shelley, Goguen, Basho, and Voltaire. The initial three stages implemented basic blockchain functionality before adding decentralization features and smart contract capabilities. The Basho era focused specifically on scaling the network infrastructure. The final Voltaire phase introduced voting mechanisms and treasury management functions to complete the ecosystem. A critical moment arrived in 2024 when CIP-1694 activated through the Chang upgrade and Plomin hard fork. This transition enabled ADA token holders to create proposals and vote directly on-chain rather than relying solely on entity-controlled development decisions.
Cardano originally operated under control by three separate entities including IOHK, the Cardano Foundation based in Switzerland, and Emurgo. Frederik Gregaard has served as CEO of the Cardano Foundation since 2021. The platform shifted from this centralized structure toward community-driven governance through specific technical upgrades. In 2024, the Chang upgrade allowed token holders to implement decentralized decision-making processes directly on the blockchain. This change marked IOHK's successful transfer of network development control to the broader community. Users can now participate in staking pools while simultaneously engaging with the governance system through their delegated tokens.
In 2018, IOHK signed a memorandum of understanding with Ethiopia's government regarding coffee supply chain tracking. The following year Georgia's Ministry of Education partnered with Free University of Tbilisi for credential verification systems using Atala identity software. April 2021 saw plans announced for an identity and record-keeping system covering five million school pupils across Ethiopia. World Mobile Token deployed approximately 150 nodes in East Africa during 2022 to provide remote mobile network access. A Ghanaian startup named Mazzuma received funding from Adaverse in 2023 to develop AI contract creation platforms. These partnerships demonstrate real-world deployment beyond simple financial transactions.
Decentralized finance services launched on the 12th of September 2021 enabling smart contracts and decentralized application development. Plutus serves as the primary smart contract language written in Haskell while Marlowe targets non-programmers in the financial sector. November 2023 introduced partner chains like Midnight that perform off-chain computations using Polkadot framework technology. Non-fungible token markets flourished when Snoop Dogg released thousands of Baked Nation tokens in April 2022. That same month a UK digital artist sold 7,200 humanoid deer works for nearly £500,000 on the Cardano chain. The platform supports both traditional staking rewards and complex financial instrument creation through its layered architecture.
The Securities and Exchange Commission issued complaints against Kraken in 2023 regarding unregistered securities offerings involving staking programs. Krken agreed to pay $30 million without admitting wrongdoing before halting its staking operations. June 2023 brought an SEC lawsuit targeting Binance with allegations that Cardano constituted an illegal security within US borders. IOG responded by calling the filing inaccurate while Ada's price dropped from $0.38 to $0.26 following the announcement. Trading resumed on Robinhood Markets by late November when prices recovered to $1.09. Major publications linked the 19 percent price slide directly to regulatory actions affecting multiple proof-of-stake cryptocurrencies simultaneously.
Common questions
Who founded Cardano and when was it established?
Charles Hoskinson and Jeremy Wood established Cardano in 2015 after leaving Ethereum the previous year. The platform launched publicly in 2017 as the largest cryptocurrency using proof of stake technology at that time.
What is the native token of Cardano named after?
The native token ADA honors English mathematician Ada Lovelace while the project takes its name from Italian mathematician Gerolamo Cardano. This naming convention distinguishes the blockchain from other platforms by honoring historical mathematical figures.
When did the Chang upgrade activate on the Cardano network?
A critical moment arrived in 2024 when CIP-1694 activated through the Chang upgrade and Plomin hard fork. This transition enabled ADA token holders to create proposals and vote directly on-chain rather than relying solely on entity-controlled development decisions.
Which countries have implemented Cardano partnerships for real-world use cases?
In 2018, IOHK signed a memorandum of understanding with Ethiopia's government regarding coffee supply chain tracking. The following year Georgia's Ministry of Education partnered with Free University of Tbilisi for credential verification systems using Atala identity software.
On what date did decentralized finance services launch on Cardano?
Decentralized finance services launched on the 12th of September 2021 enabling smart contracts and decentralized application development. Plutus serves as the primary smart contract language written in Haskell while Marlowe targets non-programmers in the financial sector.
All sources
58 references cited across the entry
- 4newsDie Grundlagen der Cardano-Kryptowährung26 June 2020
- 6webBitcoin's Smaller Cousins20 December 2017
- 7webZUG: Ex-Tezos-Mann geht zu CardanoLuzerner Zeitung — 20 February 2018
- 9webICOs explained6 October 2017
- 10newsA Fight Over Ethereum Led A Cofounder To Even Greater Crypto WealthAngel Au-Yeung — 7 February 2018
- 11webCryptocurrencies and blockchainRobby Houben et al. — July 2018
- 13newsThe University of Edinburgh is launching a blockchain research lab with one of the cofounders of EthereumOscar Williams-Grut — February 24, 2017
- 14webEdinburgh laboratory to bring 35 jobs25 February 2017
- 16webCryptocurrency goes green: Could 'proof of stake' offer a solution to energy concerns?Akos Stiller — May 25, 2021
- 17webCrypto brands perform surprisingly well in brand intimacy reportAsa Hiken — 2022-08-17
- 18webWhat is Ada?
- 19webBlockchain believers hold fast to a utopian vision27 January 2017
- 21bookThe Extended UTXO ModelManuel M. T. Chakravarty et al. — Springer International Publishing — 2020
- 22bookUTxO- vs Account-Based Smart Contract Blockchain Programming ParadigmsLars Brünjes et al. — Springer International Publishing — 2020
- 23bookMarlowe: Implementing and Analysing Financial Contracts on BlockchainPablo Lamela Seijas et al. — Springer International Publishing — 2020
- 24bookProceedings of the 2018 ACM SIGSAC Conference on Computer and Communications SecurityChristian Badertscher et al. — Association for Computing Machinery — 15 January 2018
- 25magazineA blockchain tweak could fix crypto's colossal energy problemGian M. Volpicelli
- 26webBitcoin's wild ride renews worries about its massive carbon footprint9 February 2021
- 28thesisThe Cardano Proof of Stake Protocol "Ouroboros"Florian Mellentin — January 2, 2021
- 29thesisProof-of-stake blockchain: Ouroboros Analysis of epoch duration and transaction confirmation timeArbër Kuçi — University of Bern — March 1, 2021
- 30bookAdvances in Cryptology – CRYPTO 2017Aggelos Kiayias et al. — Springer — 27 July 2017
- 31webCardano: a rising cryptocurrency that wants to change the worldStan Schroeder — 24 February 2018
- 33webCardano Ballot event to mark blockchain's move into its 'age of Voltaire'19 November 2023
- 36press releaseCardano Unveils Multiple Strategic Partnerships at the Cardano Summit 2021, Pioneering Use Cases across Climate Restoration28 September 2021
- 37webStartups push blockchain beyond cryptocurrency2 July 2018
- 38webEthiopian government-Cardano Technology team up on blockchainRuari Phillips — 11 June 2018
- 39webMinistry of Education signs deal with Cardano Atala17 June 2019
- 40webSneakers meet the blockchain in New Balance shoe authenticity pilot17 October 2019
- 41newsTesla Makes Money (Including From Selling Cars)Andrew Ross Sorkin et al. — 2021-04-27
- 42newsThere's a New Paul Oakenfold Album Arriving on the Cardano BlockchainCameron Sunkel — September 28, 2021
- 43newsDish partners with FreedomFi to deliver 5G hotspotsSteven Vaughan-Nichols — 26 October 2021
- 44newsBlockchain startups are helping Africa solve its most pressing hurdlesFaustine Ngila — 28 September 2022
- 45newsMark Cuban goes head-to-head with World Mobile CEO over CardanoDarren Parkin — 14 August 2022
- 47webCardano can now mint NFTs, run DApps and more – but the creators themselves are asking people to keep their expectations in checkBI India Bureau — Times Internet Limited — 13 September 2021
- 48webSay Hello to IOHK's New Cardano Blockchain Tools, Plutus and Marlowe11 December 2018
- 50web5 crypto and NFT projects that Snoop Dogg has been involved with2 March 2023
- 52newsCardano Outperforms Crypto Rivals Amid Scaling, Fee Momentum17 January 2022
- 54newsSEC Says Binance Misused Customer Funds, Ran Illegal Crypto Exchange in U.S.Dave Michaels et al. — 2023-06-05
- 55webIOG response to the recent SEC filingsAnon — June 7, 2023
- 56newsCryptoverse: Security alert! Altcoins worth $100 billion dropped in hot waterLisa Pauline Mattackal — June 13, 2023
- 57newsCrypto Prices Slide After SEC Sues BinanceVicky Ge Huang — June 5, 2023
- 58newsEverything you need to know about cryptoLily Russell-Jones — 24 June 2023