Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #4155
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
500ms
Block → Canton commit
500ms
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.
0x02f879830e4a25820b2685188122883f851881228847825208947c34a63b82f3b8ca1fef27ac6f8d062bdabbf216880de0b6b3a764000080c001a0e025e39b0cf7ffbd18fdc2589240cdf1bead3e9943e41437ba4010940b370cdca0765353cd7bf2ffb3e9de2b823323415b768f8e4f5c68d6b3406d45ef180f4248