Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #199321
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
637ms
Block → Canton commit
637ms
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.
0x02f8b5830e4a2581958502cb417800850306dc4200828b339444cebb03f00ff2cf6b475a7501f8e80eb78bb4bf80b844a9059cbb00000000000000000000000013f4b7e729b60664952e89c68847e8093f47e8de0000000000000000000000000000000000000000000000000de0b6b3a7640000c001a01a07e98725cf27875954119c999ad173646603a9f33e11abe43eaa8a05eeb2f6a038a8a9d324fc5896318152078af95f99f72922a77c50ba1a405523c79c331a8d