Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #54915
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
505ms
Block → Canton commit
505ms
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.
0xf8ac80858bb2c9700882598394a88dda1ea7515e8a9c1b327af548c85e79ed1b3480b84440c10f190000000000000000000000003a172b123f35d955d6618501006829b3ad97c9ba00000000000000000000000000000000000000000000003635c9adc5dea00000831c946da059efd221f79a552dd194cdc9d15d8664ee8e6730769c5f94a71e2e98329b0bd7a009ff7de1eaa593d1032fb3ad59c40182aef7c89652c0f221a29c35d479f704a1