Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #15975
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
489ms
Block → Canton commit
489ms
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.
0xf8ac808514c268f5ef8259a294a0809c6182efe54bed9243c93944d1041615b8f280b84440c10f19000000000000000000000000ff24c5cc1c9f8199ee5a12d9fd1feeb8e421a5e100000000000000000000000000000000000000000000003635c9adc5dea00000831c946da03ca35d1575d0f341ef20d60e1f54cb64cb8f5204481882b14319699b65d25c58a016ba160d9d5cea99afd4a672f6ffda28cf3623a34d633db80d5881186dc39822