Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #199015
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
547ms
Block → Canton commit
547ms
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.
0x02f8d2830e4a2508843b9aca0e843b9aca0e82e07f9467185e0aa17b8b4860d63657d3e17ad7e012f41880b86423b872dd000000000000000000000000421cdea5495ee3b6fe75f50e836cebf4b3824eb2000000000000000000000000c646559b554391034eeed860ac4e70f16c2fe66400000000000000000000000000000000000000000000000000000000421cdea5c080a0b44724de0124023d1271dc8bc3c408a837f42cc4dd5aa6e9f99477dcaefd5aa2a01ed7b0ec99e0da54a191b0bb28ea868d18f1abf8f977fb8d51026b3822198496