Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #149854
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
367ms
Block → Canton commit
367ms
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.
0x02f875830e4a2581bd843b9aca0e843b9aca0e82520894cf2fc21915b51d40a448a364984db331b0116a64870e35fa931a000080c001a064200a2a34e2d5a826927f0470d17115d66b584d475548526cb4254b527a81dca04333f3f3082c28dd7878791c97551aa67b91fc55ece6bb458cbb122e9a4e8ed9