Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #191637
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
257ms
Block → Canton commit
257ms
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.
0xf8ac12858bb2c970088259a294b778d58e24c877095693fc7800b3ee5834773d8080b84440c10f19000000000000000000000000e8f21c2211e9e891ea35545e5955a84b82c63e4e00000000000000000000000000000000000000000000003635c9adc5dea00000831c946da027c766180534f5c4d2ed75d1f37bc35773a3699a56ba8ed515dcfb0b3886e122a07ea2ff1af0581d1cf588e7d033e445ae0542d56be9c532a64f30a61fc47cf051