Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #8138
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
479ms
Block → Canton commit
479ms
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.
0x02f879830e4a258216cb851d67c309e6851d67c309ee825208949a0190498f1ad6c7fe61eacede117abb511319d9880de0b6b3a764000080c080a051d7ea1b9fb7566408b64f45a3f681e28df070dfda175bfdefc5ea73a3e32094a04cdb68dcd96d6d35029bbf2c6f6a33dbb3422b36876e31f7ee86c43611df6851