Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #221531
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
497ms
Block → Canton commit
497ms
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.
0x02f874830e4a2541843b9aca0e843b9aca0e8252089406ad5a30fbc508964999cc48f3e3c1ce6a8d2013870e35fa931a000080c001a084892636ce1315df332594f61389fb650a72c9141e11382cb0ff9253ed6df00da06c3d20455236c6d900715dfef0a62ac7bdfaef335fd0c0b7fdbb5a2ebb915a2d