Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #40639
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
677ms
Block → Canton commit
677ms
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.
0xf871821945858bb2c9700882520894e5d456b6d1b5baeda1576e43003f78ef62bde9ae88016345785d8a000080831c946da003817b34a384ac675d8dec1c84f6ccd22ca155ec6786a2498f0c94cb6ee492d7a07b7f7e8ecd6ecae966353785b013204fb6ebb4e2565550571e5ad3cfaab3e865