What is Hedera?
Hedera is a public ledger and cryptocurrency platform that uses the hashgraph consensus algorithm to achieve high-speed, low-cost transactions. The native cryptocurrency is called HBAR, which is used to pay for network services like transactions and smart contracts, and to secure the network through its delegated Proof-of-Stake (PoS) mechanism. Unlike traditional blockchains that bundle transactions into blocks, Hedera uses a directed acyclic graph (DAG) to process transactions simultaneously.