Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #74863
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
405ms
Block → Canton commit
405ms
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.
0xf871820fd3858bb2c9700882520894fd5ac39bec864552eeeb3966398a21eb60886c2c88016345785d8a000080831c946da08fe389f2a4ed6b28cc2a066a72d90222854024db4d3da205c9b9550bfc721bb1a05a3b8e7a77d2113e9f0b504c757d379cc6d2cf5210993606dfb1dde70b747aa8