Hedera vs Linea

Hedera Hashgraph uses a gossip‑about‑gossip DAG protocol that achieves asynchronous Byzantine fault tolerance and finality in 3‑5 seconds. Governing Council members like Google and IBM run permissioned nodes, and the Hedera Token Service allows issuance without smart‑contract coding. The 2024 ‘Smart Contract 2.0’ release introduced Solidity bytecode support via Hyperledger Besu integration.

Linea is Consensys’ zkEVM rollup offering bytecode‑level equivalence with Ethereum and zero‑knowledge proofs generated by the Scroll‑inspired ‘Plonky3’ prover. The network is integrated directly into MetaMask, and sequencer fees can be paid in any ERC‑20 via a paymaster contract. Linea has secured over 200 million TVL and finalises proofs on mainnet every 10 minutes.