Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #1505
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
390ms
Block → Canton commit
390ms
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.
0x02f879830e4a2582032e8502b1ff8e908502b1ff8e9882520894c2d7c1ce7fcee95c05c687f47da5d84f92f56cc5880de0b6b3a764000080c080a0d39dafb6a2f4b338d5892cfb9bcfe9cb584a8f70ec9b954c2dba0b0aadc7a7d2a0266c151e8f2ce71cae77119f86702df92264ac2098ad1375db1543d867cd82d9