Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #4449
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
879ms
Block → Canton commit
879ms
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.
0x02f879830e4a25820c0185188122883f85188122884782520894864eb87032dd2599a11590ab14fa12e358510db5880de0b6b3a764000080c001a07d0faa5dd5bf4a7d5592dec97b540c084e3d8a7afd3e212dba1bbe18aec34775a075aa427a976d08c68d1cfc3b1f1419b9f9bf8fda39a3f4bdb6d57f8801e3f750