Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #39909
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
646ms
Block → Canton commit
646ms
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.
0xf8ac80858bb2c970088259a294d129219e03f0ad695dbb10182802b82adf9ab96c80b84440c10f190000000000000000000000006fe663595af59bf0265d578dbb781a9dacc6f84900000000000000000000000000000000000000000000003635c9adc5dea00000831c946da00bcff60eb1ece6756c135b938fcb1e4572bd156f1d37246c180a3c51f47c2d18a04d1f0e6677db274ffe9d68e8398978b6fab1e26f91b4731975aa6141203fbe1b