Tezos is a blockchain network that’s based on smart contracts in a way that’s not too dissimilar to Ethereum. However there’s a big difference: Tezos aims to offer infrastructure that is more advanced — meaning it can evolve and improve over time without there ever being a danger of a hard fork. This is something that both Bitcoin and Ethereum have suffered since they were created. People who hold XTZ can vote on proposals for protocol upgrades that have been put forward by Tezos developers.This open-source platform bills itself as “secure upgradable and built to last” — and says its smart contract language provides the accuracy that is required for high-value use cases. According to Tezos its approach means that it is futureproof and will “remain state-of-the-art long into the future” meaning it can embrace developments in blockchain technology.The technology underpinning Tezos was first proposed in a white paper that was released in September 2014. After a series of delays the Tezos mainnet launched four years later.