Documentation

Fields

• chainDb :: ChainDB IO (CardanoBlock StandardCrypto)

  Handle to the consensus chain database

• systemStart :: SystemStart

  Network system start time, extracted from genesis config. Used together with readEraHistory to convert slots to wall-clock time.

• readEraHistory :: forall (m :: Type -> Type). MonadIO m => m EraHistory

  Read current era history from the ledger state. This is a separate read from chainDb, but the inconsistency is always safe: the ledger state is at or ahead of any block in ChainDB, and era summaries only grow, so the returned history always covers the slot of any block fetched from ChainDB.

• securityParam :: SecurityParam

  The protocol security parameter k: consensus never rolls back more than k blocks.