Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #199666
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
439ms
Block → Canton commit
439ms
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.
0x02f874830e4a250d843b9aca0e843b9aca0e82520894b5e724cc9c528bcd9c52dfb1bcf5afcd927287608703d62a0a157bf680c080a026497dff33631d78b04d261db0182d2897ed0fbe38ec86c7a4ec10bfe7f05ba5a02dc5616751dc49c0343ef04986a1ea9f92a961e0ed642ef732bdbce3c68e28fb