Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #4430
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
260ms
Block → Canton commit
260ms
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.
0x02f879830e4a25820bf285188122883f851881228847825208941f8b4f4daef21fe536993fae944b8fff50c48405880de0b6b3a764000080c080a01aba2c13a344e7fc96be570031709ae20371be49abe4f1ce2567c40105a89847a00470b992397fd8a16776196e910fa96a27fdae3875d07b1e7eb8072033be0d62