Created July 2015 

By Vitalik Buterin and company

Ethereum Blockchain

Unlimited supply: 120 Million in circulation 

• It enables developers to build decentralized applications (DApps) and execute smart-executing agreements called Smart Contracts

• Every transaction fee will burned or removed from circulation, reducing the supply and potentially boosting the price aims to strengthen ETH ecosystem

Mining ​

• Moving from Proof of Work (POW) to Proof of Stake (POS) early 2022 

• Can mine or validate transactions according to how many ETH they hold

Energy

• Proof of Stake (POS) should use less energy and better blockchain efficiency