Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #199638
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
407ms
Block → Canton commit
407ms
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.
0x02f891830e4a2502843b9aca0e843b9aca0e826f009494819f66f7dddfd1b00db92f2139efa294a3233980a41003e2d20000000000000000000000000000000000000000000000000000000000000029c001a04c2ca1f83b5d12aa0d4b379db3af8ae89c8fbe3f17fd9baa69ceed6a4fba3762a018b71976cf71934bf229e2023f63f0d959e8b302e074366c46165bb4caa2a9ed