Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #15996
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
388ms
Block → Canton commit
388ms
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.
0xf8ac808523df4cec8d8259a294e0a45ef66d2db5e766eba1f70e21a4bf1f901b8780b84440c10f19000000000000000000000000c90382376fed3a7bb9473874b41d211630edf0cd00000000000000000000000000000000000000000000003635c9adc5dea00000831c946ea0e8bceec9017992abe27ad336d33942bcbb89709e861bdde26d4cafffdd1f9ad5a07546046f557d1dcda52859289b3f473d20d523aefcf882236f48601b7a4ba493