Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #154902
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
284ms
Block → Canton commit
284ms
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.
0x02f877830e4a258227ba84e475b7b184e475b7b982520894ca185f4fc4e494886d63d5254369fe5ced344933880de0b6b3a764000080c001a062d0b68fd19604cdef6c807da5b4b2122a6b1a4b0c20b6627669820020cf2f85a067389038c735ad1f581ddb5a613b331c7d240cd04c749a8f2bb52307a864a554