Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #8578
Measured from on-chain timestamps only: the EVM block timestamp, which the producer chose when it planned the block (whole seconds), and the record time (commit) of the Gateway_FinalizeBlock transaction; a commit that reads slightly before the block timestamp (rounding) shows as 0. The gateway-build-block external call runs inside that transaction and is not timed on its own; the import into the execution layers follows the commit and its time is not observable here, so those steps are markers without a duration.
Total
460ms
Block → Canton commit
460ms
block timestamp → record time (±1s)
Measured from on-chain timestamps: the EVM block timestamp, chosen when the producer planned the block, and the record time (commit) of the Gateway_FinalizeBlock transaction. The block timestamp is whole seconds and follows Canton's ledger time, so the span carries up to ±1s of rounding; a commit that reads slightly before the block timestamp shows as 0.
0x02f879830e4a2582184a851d67c309e6851d67c309ee825208943014ab845af8b11d0c8fdec89dd05c5496c29de9880de0b6b3a764000080c080a05f024a1d2c23790ded56b04cf61d2157f45e76e3d6eb62a8787705d505e36287a0069ab84157a3630e11bc00d097d2e6036d3090a9584cc2503d4bcaff40afc3c2