Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #149830
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
544ms
Block → Canton commit
544ms
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.
0x02f873830e4a250a843b9aca0e843b9aca0e8252089406a0ad5c3dcac4a12aff246bc601c46f33739c9a86c38a96a0700080c080a05ac2bf8bdce2f5694d856a7e09dfead4ff219f3d6a1bd21f3a547f84d4dfcbd0a0766345cceedcdda672d316316294c3b7b5c5b694e05ea9b42e4b04d3c1da96f2