Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #54576
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
396ms
Block → Canton commit
396ms
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.
0xf8ac80858bb2c970088259a294a88dda1ea7515e8a9c1b327af548c85e79ed1b3480b84440c10f19000000000000000000000000bbca9b508b2e613995ea13656c45bb9d595c58d500000000000000000000000000000000000000000000003635c9adc5dea00000831c946da066369d0c0341be029eda2844b81680cdd325cf2091ae29c770beaff4f85e8f48a074e416b55ccc55a6b0bdd91b37f36a2dd647bcfc903f5bbfbdcf19e4d551719e