Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #149430
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
644ms
Block → Canton commit
644ms
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.
0x02f874830e4a2509843b9aca0e843b9aca0e8252089453bb45502fd9a2afee90d3312ced4efd680173cf8701f8c501d9b00080c080a0a42d6c9d73fda435b89e3aa1ffc6ffd3c1982d6aa12a9695c7141a8f66c205a9a067e50adab5cabd6a292bdf67ea46720cdce3fb896570e17716dd705053faf0f5