Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #64215
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
395ms
Block → Canton commit
395ms
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.
0xf8ac03858bb2c970088259a29423e5dee888c67549a750290c1ba14a94c855229a80b84440c10f190000000000000000000000005ec69d9ef19c49b5b1dc82fcce118d0f3ceb86a000000000000000000000000000000000000000000000003635c9adc5dea00000831c946da0ca82a050a2a02f38516f8ff7b1fb8290f26cab75d0adc4c657faf870111f293fa06b433ab06e1ad30d26a78cb48e2fa00fc66ea28cbf027440e651445f30065d9f