Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #12495
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
849ms
Block → Canton commit
849ms
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.
0x02f879830e4a2582230c85746a52880085746a5288088252089463a3f2e6fc13d9744cd991abd696beeb373f60f1880de0b6b3a764000080c001a0615136c37ca1ad423e7ed3c8f8368031b5df123ee97a53d4f81fe3746a9f0a42a07656d3e3486f08db637d1c0761d7e65c6a682d3f3c3ad90261080ea635ab245f