Hedera vs Manta

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.

Manta Pacific is a modular zk‑EVM Layer‑2 that stores rollup data on Celestia DA and uses universal circuits to keep prover costs low. Users can deploy privacy‑preserving smart contracts with built‑in zero‑knowledge widgets for shielding balances. The 2025 ‘Marlin’ release adds Account Abstraction and native bridges to Polkadot’s parachain ecosystem.