Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #4255
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
939ms
Block → Canton commit
939ms
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.
0x02f879830e4a25820b6b85188122883f8518812288478252089442ce71bf1cfc0463a9423e36d626033e840e04ab880de0b6b3a764000080c080a05b2d6e47b0dd5cd0f3a4d970cdfc67208143090640beb8203a8820aafe5afa84a00344d62a1a5bdcd20ca7e6a060cd3cdd6d50c550d82efcb0bc29c4c36cee2b21