Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #189291
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
668ms
Block → Canton commit
668ms
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.
0xf8ac188518e94ac0b88259a2940db987998cdceb19be8b3dd513f173fb1c32fe8980b84440c10f19000000000000000000000000d9a3e5e9fb071b6d6d4f99089414d666ca01390600000000000000000000000000000000000000000000003635c9adc5dea00000831c946ea05be269233026d0b0eb7b1fb06e5fddf39dad7ba9d3c90584b9f95677e72c4806a05e53c2e5e3d5ca6ddc0bc2a854dad74fc2635188fb598f4d3864be1c54f7f98d