Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #4555
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
468ms
Block → Canton commit
468ms
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.
0xf88c068519bacaa8af830178c1942309a0005f756719fb33c869752e8cea21975e5480a46a627842000000000000000000000000f4f5b5ca6107122de265d079d1799e28eaee4ac0831c946ea030ae39bf6ed8d724c0ad6990af00644c80cd0bbead65e3b84f3c363703b9374ea00567a53b7e1e8a75894ee90ca2073aa85042afdf2057e551e3b53c37b203d442