Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #18550
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
419ms
Block → Canton commit
419ms
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.
0x02f872830e4a2581a4843b9aca00843b9aca1582a0dc942a1e151de8adb9c9231dc00681d5746b9d7647258084d09de08ac001a0b53cc91da80dcec746bfac8d79c15ee6f030aeb47048efe60e688265e9c912d4a0407b822821ef3d973df0507aaa4385f8acccf38b9db55fe8607253083058edc2