Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #8409
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
993ms
Block → Canton commit
993ms
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.
0x02f879830e4a258217b2851d67c309e6851d67c309ee82520894045cc05eddf481a7c2ec2202bb94f148f4892128880de0b6b3a764000080c080a00b34099a5770a6bf9251f95e99142813eb8dff2c9d30c1e72f4916bb1f9dad32a046d935c1ac082b44a24eded9824d986074e82df46a921c7985a5a8a84d9a697b