Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #123003
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
395ms
Block → Canton commit
395ms
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.
0xf8ae8217bc8405f5e1008301d4c0940af70fb293003422fb174e4ad03787337903128b80b844a9059cbb0000000000000000000000003c6fdcca048fc7bcd19bfae04cac48217c8945ba00000000000000000000000000000000000000000000000340aad21b3b700000831c946da0909a4b709b2d9bb92a7cfda11a4b17beb98d992db39f346c7543284a61698208a04b0bbec92429ee2bbc6c1dc2e77a0a4c160128c2839b4084bf18e650be6e458f