Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #189453
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
447ms
Block → Canton commit
447ms
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.
0x02f873830e4a2509843b9aca0e843b9aca0e825208942aa61c9521d9a4abe0b462e822cb1e393fae9caf8663228a47d00080c080a01a22ec74a0433b9b5f7a52bb1a12b3ad9637bf342d50901306efe313cf4b979fa005288b336573f3a4a6f310f2fbf45f1f0cc3c6a80dd527fd86bc7a399a5be4ca