Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #8231
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
449ms
Block → Canton commit
449ms
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.
0x02f879830e4a25821717851d67c309e6851d67c309ee82520894ac9e302a889b20dc92c3019a8ca45ac31c4a6ee0880de0b6b3a764000080c001a06c5d2f727f8c2ba7f40011a1f0da92c84fd7b7057fb36c6bf1d602230cff52d9a06b9c8837774330158f12f4c56a1d67be224c17f3cafdc7f0663cd829650da814