Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #191522
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
387ms
Block → Canton commit
387ms
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.
0xf8ac12858bb2c970088259a294b778d58e24c877095693fc7800b3ee5834773d8080b84440c10f190000000000000000000000002e7c667f7788179ca441a6761929477fd76a6dad00000000000000000000000000000000000000000000003635c9adc5dea00000831c946ea012561c350601dd381b4e862f2a4a1efa1d3dc278dda0bf400bfd91c3564ffb97a021ad59d5477319de77fa497e4488436c862be5bfa597894ef417c7c4cc7ea29b