Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #15930
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
750ms
Block → Canton commit
750ms
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.
0xf8ac80850a02e400168259a2945345a589ea2a5896673ff13987bcda49d3569be780b84440c10f190000000000000000000000008daa588af551a8d20c6ddcff9731e0ec4cc8ef1b00000000000000000000000000000000000000000000003635c9adc5dea00000831c946da053cea2a160b12a93c07281b0200f3e8d9738f13730019954539ed13f567e43e3a02f1fb88454f72fe4b7ed12f4c192c371bfeafe4f4b159e0e38a3815595d24a48