Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #16645
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
399ms
Block → Canton commit
399ms
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.
0xf8ad0d857a3c70420783011e399450aae92f862e5d12ea5b5701f104fd256f871f8f80b84440c10f190000000000000000000000004f0f0d7f415a24d74eb2c3710e3c4b79f5b1de6f00000000000000000000000000000000000000000000d3c21bcecceda1000000831c946da0114f0ae02fedfb40239e5d144d839c8375e5fb49cbf6d6e49feb2200e0c9a606a040f2052303319219365ed44477ee664a48cb6dbdf3c3544678f737d528a112b7