Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #4199
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
289ms
Block → Canton commit
289ms
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.
0x02f879830e4a25820b4785188122883f85188122884782520894c54a1038f2ff3790f5f0f447bbc52b77d81080af880de0b6b3a764000080c001a03ff4c8d6f8cb7fe32bc8c4b73e13de27a2124556e5876c99662021aead57de4da06d6a5bc11b37571b9d033433a4e2dd8c52c7c479e352ce8b275e0ccda31479f1