Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #55453
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
446ms
Block → Canton commit
446ms
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.
0xf871821c0a858bb2c9700882520894852011f39f61f4e5a56c2a981b12d17bc92f821188016345785d8a000080831c946da0a810ebb0968160aa1c43eb373a18ccb8ba51f496231545679151a6d36c7e9ed9a03a4fd9da4650be1515c9699b6952bb0129868e89c382f3e53cda30f71a4270fc