Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #8391
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
990ms
Block → Canton commit
990ms
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.
0x02f878830e4a258217a0851d67c309e6851d67c309ee8252089494788e50849de715a4f4438d22d9c77eb9f2a6ce880de0b6b3a764000080c080a0dd80e161d02d30ea01bf84837e236feaa4f0c706367f55365f31c3eea81c35ce9f76aea708ad9fcc9ea2639c2bc79938196312316b56abbd02ac17c14c3bf460