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Initial release 30 June 2018
Repository Edit this at Wikidata
Written in OCaml
Operating system Clients available for Linux, macOS, POSIX, Raspbian
Platform x86, AMD64, ARM
Type Decentralized computing, Blockchain, Cryptocurrency
License MIT
Website tezos.com

Tezos' is a blockchain project that aims to offer "the world’s first 'self-amending' cryptocurrency"[1].

Its 2017 initial coin offering raised $232 million, the largest for such an offering to that date. The project experienced a management controversy over the use of raised funds that was described by a July 2018 Wired cover story as "the crypto world's biggest scandal" after its resolution.[1]

Tezos launched a Betanet on June 30th 2018[2] which became Mainnet on September 17th 2018[3].


Tezos is a generic and self-amending crypto-ledger which can instantiate any blockchain based ledger. The operations of a regular blockchain are implemented as a purely functional module abstracted into a shell responsible for network operations.

Bitcoin, Ethereum, Cryptonote, etc. can all be represented within Tezos by implementing the proper interface to the network layer. Most importantly, Tezos supports meta upgrades: the protocols can evolve by amending their own code. To achieve this, Tezos begins with a seed protocol defining a procedure for stakeholders to approve amendments to the protocol, including amendments to the voting procedure itself. This is not unlike philosopher Peter Suber’s Nomic, a game built around a fully introspective set of rules.

In addition, Tezos’s seed protocol is based on a pure proof-of-stake system and supports Turing complete smart contracts. Its proof-of-stake approach is novel, because the validator pool grows organically with the growth of the network. It has therefore been called "liquid" proof-of-stake by some. Tezos is implemented in OCaml, a powerful functional programming language offering speed, an unambiguous syntax and semantics, and an ecosystem making Tezos a good candidate for formal proofs of correctness.

See also[edit]


  1. ^ a b Lewis-Kraus, Gideon (2018-06-19). "INSIDE THE CRYPTO WORLD'S BIGGEST SCANDAL". Wired. Condé Nast. Retrieved 2018-06-28.
  2. ^ Floyd, David (2018-06-30). "Delays Be Damned: Tezos Blockchain Tech Enters Beta Testing". Coindesk. Retrieved 2018-06-30.
  3. ^ Tezos Foundation, "Tezos Mainnet Is Live", 2018-09-17

External links[edit]