Everything To Know About Tezos (XTZ)

What is Tezos (XTZ)?

Tezos (XTZ)

Tezos set out in 2014 to create what it called a “self-amending blockchain.”

Complex in implementation, at its core, the concept was simple: Tezos would allow anyone who owned its XTZ cryptocurrency to vote on possible changes to its rules, and once decided, the software would automatically update to ensure the changes were made. 

By using this system, Tezos aimed to reduce the chances its blockchain might fork, creating two separate cryptocurrencies with two distinct prices. 

Yet, the idea that a cryptocurrency could upgrade itself within its own software had wider implications starting a conversation around what would be termed “blockchain governance.” 

The arrival of Tezos would alter blockchain taxonomy, effectively separating crypto assets into two camps, those with “off-chain governance” and those with “on-chain governance.”

To make its system work, Tezos users were allowed to vote through a process called “baking,” in which they agreed to lock XTZ they owned in special contracts. Users could either become bakers or delegate XTZ to other bakers to win newly minted XTZ from the protocol. 

For this novel design, Tezos was able to raise record-setting levels of funding in 2017 before launching its live blockchain to the public in 2018. 

For more regular updates from the Tezos team, you can bookmark the Tezos Medium blog, which includes tips and tutorials on the network and its evolving technology.

Who created Tezos?

The Tezos blockchain was created by husband and wife Arthur and Kathleen Breitman in 2014 through the Dynamic Ledger Solutions, a startup they founded to develop Tezos.

The Tezos team held an initial coin offering (ICO) in July 2017, raising the equivalent of $232 million (66,000 BTC and 361,000 ETH), the largest ever ICO at the time. Following the ICO, the Tezos Foundation, based out of Switzerland, was created to launch the protocol.

The foundation also committed to purchasing Dynamic Ledger Solutions, including all intellectual property rights to the Tezos blockchain, per the ICO agreement.

How does Tezos work?

The Tezos blockchain enables many features common to cryptocurrencies.

Developers can use its software to run custom programming logic (smart contracts) and design new programs (decentralized applications) meant to replicate products and services. 

Yet, its voting features required a different design.

More specifically, the Tezos blockchain would be broken into two parts:

  • Shell : The code that amends itself based on user voting, it is also responsible for interpreting transactions and administrative operations
  • Protocol : The code responsible for sending proposals to the shell for review.

The Tezos LPoS Blockchain

To keep its network in sync, Tezos uses a variation on classic proof-of-stake (PoS) consensus called liquid proof-of-stake (LPoS). 

Similar to traditional PoS mechanisms, LPoS is an algorithm used by computers running the Tezos software to secure the network, validate transactions and distribute newly minted XTZ.

In order for the participants (“nodes”) to participate in governance, they need to stake XTZ in a process Tezos calls “baking.” To become a baker, a node needs 8,000 XTZ (also called a roll). 

Users can also delegate their tokens to other bakers, allocating votes to other users so they can earn XTZ rewards on its live blockchain.

Bakers are incentivized to perform honestly, because users have the flexibility to easily switch between the bakers they delegate XTZ to, depending on their voting preferences.

Tezos Upgrades

Bakers take part in the governance of the blockchain by voting on proposed code changes. 
The voting process consists of four distinct voting periods, each separated by roughly 23 days.

  • The Proposal Period : Any baker can submit a proposal to amend or upgrade the Tezos blockchain. Proposals with the most votes move on to the next period.
  • The Exploration Vote Period : Proposals that reach a super-majority (80% of votes in favor of the proposal) move on to the next period
  • The Testing Period : The proposal then moves to a temporary test chain (48-hour fork) curated to verify if the change works and is safe for the network to adopt. 
  • The Promotion Vote Period : Bakers vote to determine if the proposal will be implemented. Proposals go through if the vote reaches a super-majority in favor. 

Bakers can also attach invoices to their proposals. If the proposal is approved after all four voting periods, the protocol will mint the specified amount in the invoice and pay it to the baker.

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