Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #5156
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
490ms
Block → Canton commit
490ms
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.
0x02f873830e4a250885188122883f85188122884d826c6a944a663e8160f8d735876151b0cde07784f67489d980847f76faeac001a0cda1a275205a4c3174af226b6daad2727486116e799592fdcdc4a8f72201bd5aa00ba886ffa52a71fa3bb8091fd7a5f4520a87f08b4efd5c9c6c5e197a6dfec2d3