Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #645
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
629ms
Block → Canton commit
629ms
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.
0x02f878830e4a2581c285011c033c7e85011c033c8682520894d3c5c700186bb37a5daa62f85b3e6964b665b468880de0b6b3a764000080c001a024b5817e7ab04f00b05d4caa124ab70dbbd4abf23a543b958ed74ea22adb2bd7a07cbae22f3d8295070dead6b17ee439ebde0e8090a07520cbc782e7f4fb06a6f9