Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #51981
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
325ms
Block → Canton commit
325ms
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.
0xf8ac01858bb2c9700882c9c494beede27adc78c973ff5d41a475c07cb8601074d280b84440c10f19000000000000000000000000b13c1ed3844ba0a153ab6552a14bf84436e234a000000000000000000000000000000000000000000000003635c9adc5dea00000831c946ea0aa555e2144d81d200641a479d2254fa9fb87e038cccc1a6e4d51f5f4e161adffa012e5106f3ec46d7535d5429bcb04ee53c53aa310353d9347e43604ea8b661d20