Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #15478
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
960ms
Block → Canton commit
960ms
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.
0xf88c128502f8b91c90830178c1940138b95f976b63cfb7334e3f1b0a484d6e0535e280a46a627842000000000000000000000000d715eb7c9d494e91b6c3ff6d76a9f1cf68a5de48831c946ea0436a8ba86b086595d53b468a0ee9597bac185f7f835cd568767469235af0b91aa0534acec6eadd4aa67f95b08a5c56e7b8e741395541077af0be19036f78b80ab0