Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #3937
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
549ms
Block → Canton commit
549ms
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.
0xf8ad028519bacaa8af83011e2c947c4d44b30ab32959615c15d11bcc74e90281f75b80b84440c10f19000000000000000000000000e6e956290514038ecc0016dee89dfa2decc3409100000000000000000000000000000000000000000000d3c21bcecceda1000000831c946da0a7dc1c0d3ced5af362137b9f94a0a7be690bf4532244ba93db6e4719cb4cd514a063397318c1c1b8d015cfbf46fc49c52a76dc5c5e2b1916c2de7891de29e4cead