Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #12688
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
749ms
Block → Canton commit
749ms
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.
0x02f879830e4a258223b585746a52880085746a528808825208947929f59f31ab70382a68a5b0353f18da1e71fc0e880de0b6b3a764000080c001a03d882fe5c0a78c21c3018513d1ffe08171900ec4ad9d042ff0c8588d8d0db8baa07a06dd1e21e4e41b15831c069d7496d9599161c1fb708373e6d3cc94f28dd7bb