Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #54178
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
546ms
Block → Canton commit
546ms
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.
0xf8ac06858bb2c97008825983945345a589ea2a5896673ff13987bcda49d3569be780b84440c10f1900000000000000000000000019a9002f6dfa66191fbfc16c1d56fd76db58f2c600000000000000000000000000000000000000000000003635c9adc5dea00000831c946da0edbbc00d3b03c2d3fb3f50d1fa5fd365a77bab527f25e21349247b3f67665bc2a06405274f4397abc09c01df9a7ba3a3881effb7c3a66ad910b9d3ed1b9fd12f86