Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #9155
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
389ms
Block → Canton commit
389ms
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.
0x02f879830e4a25821a2d851ee02663fe851ee0266406825208946813c2b73e226fc662c3348b972f4d38f172cdb1880de0b6b3a764000080c080a0c138567f3e32992e218dc99bd7a3a99884192117aa7b2fc5b72a61442ee1682aa06c5c38aac21483e37b214cf51e1bf923a416e07ab4b39c0e2c0d2e30b37d8897