Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #15968
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
650ms
Block → Canton commit
650ms
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.
0xf8ac808514c268f5ef8259a294a0809c6182efe54bed9243c93944d1041615b8f280b84440c10f190000000000000000000000005f8c31301cf95a740a0336218c7f578ca664b83300000000000000000000000000000000000000000000003635c9adc5dea00000831c946ea00114319f444bbd99d8c5de5793ab31ef382951e7787d8adb336bea4be5a0a3dca0791f1c010a3af36d259328153d9dcb3af6a66baeecd31074576a0eb26f66ead7