Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #199658
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
387ms
Block → Canton commit
387ms
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.
0x02f8b2830e4a2505843b9aca0e843b9aca0e82cb72940af184d30b5c0246291db688c43a85ad4180e34080b844a9059cbb000000000000000000000000dbc485f3978e998a31c8940865a2a1dcf16451470000000000000000000000000000000000000000000000008ac7230489e80000c001a0d0347b5154c2cb8ae76e80b34c3c4c40ba15113082aedae19d82d09c47a46c5aa03bde470cdf6678fd3e54e768ddaae014704767b27ea4b4cf7d732a0a7f3c2bc3