The video includes Tezos (XTZ) price history from July 4, 2017 to today January 3, 2020.
According to golden.com,Tezos is a self-amending cryptographic ledger. The Tezos protocol allows for stakeholders to approve amendments to the state as well as the protocol itself. According to wikipedia.org, Tezos is a technology for deploying a blockchain capable of modifying its own set of rules with minimal disruption to the network through an on-chain governance model. Unlike blockchains such as Bitcoin or Ethereum, in its most popular incarnation, a Tezos blockchain does not rely on mining (Proof of Work), but instead utilizes a Proof-of-Stake based consensus model.
Tezos is a decentralized blockchain whose protocol allows for stakeholders to approve any amendments to the protocol led by Kathleen and Arthur Breitman. It is a platform for smart contracts which facilitates formal verification of the mathematical properties of the code governing transactions with the intention of being a true digital commonwealth. The currency the native to the Tezos blockchain is called tezzie (XTZ). Governance of Tezos is designed to be a commonwealth such that token holders vote and determine future upgrades to the protocol. This is called on-chain governance, which prioritizes voting for soft-fork upgrades to the network rather than the network splits that occur via hard forks in other blockchain networks like Bitcoin and Ethereum.
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