Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #12555
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
909ms
Block → Canton commit
909ms
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.
0x02f879830e4a2582234085746a52880085746a52880882520894a6629be163f53f80f9ec77a3605d52826d7bb2a6880de0b6b3a764000080c080a01fead0d0cebc0f7f9a2bf395a358dbf98a8114849c673671ffba15cbec77caa3a03410f6f1d1b19d7a0ea6999d510a9d4b63cdc123f2fdbd18e9350a54499dcbed