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Agents

The Hyperlane protocol relies on decentralized offchain agents to observe, sign, and transmit messages.

For convenience, Hyperlane implements these agents as a set of binaries implemented in Rust.

  1. Validators attest to the validity of Mailbox messages that use a Multisig ISM, and make their signatures available to a relayer.
  2. Relayers aggregate off-chain metadata for the IInterchainSecurityModule interface and deliver messages to their recipients.
  3. Watchtowers observe the network for fraud by validators. If detected, watchtowers submit evidence to the origin chain, slashing the fraudulent validator(s).