Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #189164
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
647ms
Block → Canton commit
647ms
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.
0x02f8b2830e4a2504843b9aca0e843b9aca0e828686942de3816e76f713893aebdee5b20abf3cd6530cf880b84440c10f19000000000000000000000000d4e0566f6059009cbec5dcff2ffc89b770332ab500000000000000000000000000000000000000000000003635c9adc5dea00000c080a0a91991e58a732263cfb0ebc7e202deb64f667f7f20789488641df81f40326db7a04337804733ef351e922ab21c06686c9b740905ccae4da7b11ffb2eb53dfa3390