Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #199421
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
817ms
Block → Canton commit
817ms
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.
0x02f8b2830e4a2504843b9aca0e843b9aca0e828692945fef3b4b680478e888d70fc702a90afe79b2dc3780b84440c10f190000000000000000000000005af423c66780ae52f28a3304486d4d9b9080033600000000000000000000000000000000000000000000003635c9adc5dea00000c001a0322c69a6ed6e74a6c17db0b1ef692538f3fc41ead016bd1631ad87c977348f95a0401f0132c43eea3994f2b55859bfef3c074e0d62fce53a81c2f5ce5e46b00292