Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #199151
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
407ms
Block → Canton commit
407ms
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.
0x02f874830e4a250a843b9aca0e843b9aca0e8252089409e956d80c65869c8a248792f8c1d82752d3c3408701c5d67dbe300080c001a00e9cf9d282f6b6422ddeb8956bb1595031c7d47652b04aae251bb656c6d2296ea0149df6d6f25289fc87f139edbbc5a97fee03ccf5132e8ceb4d84197f69ae411f