Hedera is a fully open source, proof-of-stake,
public network and
governing body for building
and deploying decentralized
applications. It offers developers three primary services: Solidity-
based smart contracts, consensus, and token services. Hedera is unique in that it is incredibly
fast, energy-efficient (
carbon negative), and secure — these advantages can be attributed to its
underlying
hashgraph consensus algorithm. The Certified Hedera Hashgraph Developer (CHHD)
program allows candidates to demonstrate the knowledge to develop and maintain client
applications using the latest Hedera programming model. This course also introduces you to the
Smart Contracts service, which runs the EVM (Ethereum Virtual Machine).