Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #177912
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
405ms
Block → Canton commit
405ms
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.
0xf8ac0d850797a0f1248259a294b492fe8d264c824de4aa16cbc58b444a0994ca1b80b84440c10f190000000000000000000000006609e3d49bbdec23cba21516328b6a498d850f3100000000000000000000000000000000000000000000003635c9adc5dea00000831c946da04c9de3082dfabc46e154515c1c1b82ffd20ee05644c4353cc78d3f2694176af2a051e2d152d803e6e10f081e9730307447157b1d261cfda543364924fd8bb5f0c4