Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #21990
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
217ms
Block → Canton commit
217ms
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.
0xf86d188503fb7113338261a8941887e4a7eb0392dabeeb95a7b418f178fe339de2865af3107a400080831c946da01e953053e8acfeca9ec09e0d9da351e3ea4e1e5f5e303e831d9e57e60ea4d2b3a04409627ba69e1787a8e232a4395fd9799b36fec7bd1ef8e8c16fccd6a291ffa8