Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #51197
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
686ms
Block → Canton commit
686ms
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.
0xf88b278459682f00830178c1948faa54e9b5f14544a14cfd64d6da7c2fd7275abc80a46a627842000000000000000000000000dd97d30333dc3eecfb9bf85ab83444d348b122aa831c946da074b6ac084f2905384749be74b6ea54b78c7ab14a0247b8a75910ca021ba33ccba0160f12d80fed5a285e54fe894704dfdbaf774a3ac38743301704637e3495e539