Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #21307
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
420ms
Block → Canton commit
420ms
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.
0xf8ac80858bb2c970088259a2945345a589ea2a5896673ff13987bcda49d3569be780b84440c10f190000000000000000000000006e7a7a9218ccb0fa24347a9cc555dd57c0e0d57000000000000000000000000000000000000000000000003635c9adc5dea00000831c946da0b5d684c80d8ca1dc0a04efc75661cb384dbab8836ca6ca7868e824dc1fe138d5a0201143c23fd0e3e5a31dbe99dede8d11941ea91a1423f5d993928f74ba80e1af