Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #178131
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
275ms
Block → Canton commit
275ms
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.
0xf8890e83880cb28254ac947919e636cc2a6edbbb60c3d696509f90f5505a5b80a4552410770000000000000000000000000000000000000000000000000000000000000001831c946ea09c418ca1e23b1cb50b4de2d150c2d2d23b78a1bf176c3268b9fe44c5dfdf48b2a05048da77d3bc8d4434d335b29c8a5ce8ed49cc1e8b94128b17b61bd52ea2d9f9