Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #309
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
338ms
Block → Canton commit
338ms
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.
0x02f88e830e4a2501843b9aca00843b9aca0e830186a09435ab2b3de7256895271634bb105b5bf9f45e48b880a09a9eb64e9b7e8b4f864eb6d3a1c9320ddca7cafb8b2aa9e4c88c821767e67fb6c080a07316e0e9a94c7b5808923eca883d20493b7130ca577d4bcecbcbc96ea9413a2ba07a70f63566778bc9bdce5249c91c1ec20e5499fef97641c42bab166c5264b669