Herodotus Docs

Commitments inbox

Each time some data coming from a different domain is accessed on another domain in order to ensure it's cryptographic correctness a commitment is required, such commitment can be:
  • State root
  • Block hash
  • Transactions root
  • Receipts root
These roots are received by a contract called CommitmentsInbox these can be delivered in multiple ways like:
  • Receiving those as asynchronous messages.
  • Validating the network consensus in a verifiable manner. (Available only for decentralized L2s)
  • Optimistic relayers.
Once a commitment is accepted by the CommitmentsInbox it gets passed to the HeadersStore .