Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #12755
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
739ms
Block → Canton commit
739ms
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.
0x02f879830e4a258223f385746a52880085746a528808825208947aeb911bc34c8068e1c0715da460e676555a2efd880de0b6b3a764000080c001a09b5f3ddc1f8905ba571044ed3f063a7eeb878c0633131431e0731d2c6cf6d58ba072977ae1e0a41d3e3edfc604388db81cfa9a357f504c1f51ff1ac3c5f64c61fe