Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #5121
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
289ms
Block → Canton commit
289ms
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.
0x02f879830e4a25820dfe85188122883f851881228847825208940f472aac2b87f7b65a6cd0dd344c4d019b239b88880de0b6b3a764000080c080a0eea29bb7fe34cc86e3b48c89f87214654e5a3fef4ea786a918e1bb4e84925209a0276b5fd59f19d5328ff5c8a7cce8d905f7c53334e2d2b8ac8b5d0795f33d0e18