Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #8519
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
479ms
Block → Canton commit
479ms
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.
0x02f879830e4a25821815851d67c309e6851d67c309ee825208945b850d04f57b6a2ead2acfe51ae06817ee19d987880de0b6b3a764000080c080a0c2344cb495f54356fc872ca5ba7cf16447355b1397a9ef4438427123eb78e14aa02d9abbf9a44a1b8df1e0ba2352a0a7dae5f3e6953a39447b76248083c0365221