Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #1668
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
309ms
Block → Canton commit
309ms
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.
0x02f879830e4a258203a885031ec25df685031ec25dfe825208946638a7807796f0908c3537c243e2f44039fadc0f880de0b6b3a764000080c080a0d4e990a9a43ea8e2be8132f3a33a202af6a7605a1efea5d2ce163058a43a6621a045776053113c65675cb01c814519f8c3d6d29f53b97a7dc8c82b0945823310b9