Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #6221
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
428ms
Block → Canton commit
428ms
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.
0x02f879830e4a258210bf85188122883f851881228847825208946a0a790dbde9db9b9253f02e1102e5e9a76f4f98880de0b6b3a764000080c080a0a74a3e39bedec312b8dace9c78fecd379986e45aacc1bca76172acbc4be1e05ca06b551b9e0f36510e0a173a444db3c6307d2d8b17b13c0b4c74fb03dcfb33e613