Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #123812
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
495ms
Block → Canton commit
495ms
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.
0x02f8b3830e4a2507843b9aca0e843b9aca0e8301668194d2ee8926b7fcc22685994499f1b7092352d0a79880b84440c10f190000000000000000000000002fb108c40a810b7b8be7d1d7093e6897adad15d7000000000000000000000000000000000000000000000000000000002fb108c4c001a01ea5551a7da60b874dba2bf98f902ce5d048de872aafc5b51b582ac6bb6e5e47a05beaa2fa2fd8e79ccd59c41f59ccc823d0222bac46660de8f0484feda63edb2a