Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #20978
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
618ms
Block → Canton commit
618ms
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.
0xf8ac80858bb2c970088259a29423e5dee888c67549a750290c1ba14a94c855229a80b84440c10f1900000000000000000000000063ee44ee9046a38e2ef26ad74373b70d4398d68200000000000000000000000000000000000000000000003635c9adc5dea00000831c946da0da39e6d6f91edc29f4d2e9a34c36e170ca8cb5d0f076377f5ea4771b5c2c2269a0216c92aa17b7be42caace9cca538a4dad443fc382a2e949b28aecb672ecae355