Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #18555
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
890ms
Block → Canton commit
890ms
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.
0xf8ac80858bb2c970088259a2945345a589ea2a5896673ff13987bcda49d3569be780b84440c10f19000000000000000000000000c8d7c8dcdb7529d3ed23ff832dfa3ddca7faf6f900000000000000000000000000000000000000000000003635c9adc5dea00000831c946da0528a1c9b586352b23b92083e0c6692b72a0bcdf637f3c2e2358b071d6f8bab70a057955161ae50ec5ac67ffcb712bc09899e1ae9442b67c600e5cff5987779c968