Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #189257
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
457ms
Block → Canton commit
457ms
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.
0x02f874830e4a250e843b9aca0e843b9aca0e82520894b5e724cc9c528bcd9c52dfb1bcf5afcd92728760870343bc4e41ef8680c080a0a9c572279366f5aeae6a8ba567d8a1b0a402a56ad88749e0535e15890ae0ee17a06e408624d9697c879157807ca9c6be6c4664f0bcbc87e297f91d7451be92a1a5