Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #219446
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
257ms
Block → Canton commit
257ms
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.
0x02f874830e4a250f843b9aca0e843b9aca0e82520894db109b2b220e75f3b091987678bc4e6e7d170fa387030c6a261c79ca80c080a0a7b68a4a2802b6138d808fec38cd97ef4352226625adec74d3f2937546cacb4fa0412b373872e758193cf8ea860c8301f31b184dc8b1c142acfb67d72c988d13cc