Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #16955
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
929ms
Block → Canton commit
929ms
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.
0x02f875830e4a258084a0eebb0084a0eebb1582520894fe3a99a761d9fd2b891231f561ed8fba1dd4db13880de0832228016d5880c001a081ed1991fde4e9172194b2075b2f9b14afc61bf718e7bc227c5cd34f0874b1e0a01215bd25d2dfe66eaf7e7f7ad296e44a0fb5d25b35aa58576165a97f280ca54e