Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #38640
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
656ms
Block → Canton commit
656ms
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.
0xf87182150a858bb2c9700882520894cc3cf695fad6156a8287c6a36f671407114c4eeb88016345785d8a000080831c946da0747b0174b76db9bd6c5d020d0f7bdaa3c673d7d860dab67576c8f98611307cc0a03a2f2e3f61227ba86a0ebdd448950e8f0e04b1975a4bbbc74c34a7a0ae68ab71