Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #154855
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
644ms
Block → Canton commit
644ms
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.
0x02f86d830e4a253b84971907b584971907bf827b0c94ecfbc7135c3596788d9a1cbf097a5e287f9760e68080c080a0c7c61a669a0d38882b68377c50e17cfbcdc7e97ce71829a9c5a0dddc97dbc395a06b53d33a0c027c26bb32523b85b0b2f39b7a7cd2b82c4bcbe1f6a20f41e8c958