Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #3509
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
550ms
Block → Canton commit
550ms
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.
0x02f879830e4a2582092685188122883f85188122884782520894866cb0d39654c7fb64d087f1fdb2e0c82f2029fe880de0b6b3a764000080c080a04897a82fc7d02d6960254c6cb59dbff91c0d02c588b4a914db4ca55f0ca9c6f9a02160329eaba31c89a03377aa58dd2b1728ceae75354c111a959817a4b108d7e8