Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #402
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
819ms
Block → Canton commit
819ms
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.
0x02f875830e4a2556849e261c19849e261c218252089437c0dc8df9ec471fc23865f113fe4d1985f3d750880de0b6b3a764000080c080a099d7fa00e58f88c28332dc3c606710179a05ae3a17719d6fefb31bdce3fb51c4a0641bc57fcac32bd32be789a02420e5710fb132d2b6ab6f7dfe6ee57a2c129daa