Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #153730
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
405ms
Block → Canton commit
405ms
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.
0x02f8b2830e4a2504843b9aca0e843b9aca0e82869294b68549923b2b5951eb53e7813c8cc223d607488480b84440c10f190000000000000000000000000a102d28101e345ef2b75bd6139ef2dc24c0943d00000000000000000000000000000000000000000000003635c9adc5dea00000c080a0a6b3e8f1bc60f944ae47e1eb6dc7cb83858fc9710cd22de89c1344ba0e4ebdc8a05948434f52609be9bad44cf89382c9547077761b54ae1c009c5cd671d1973dba