Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #156175
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
345ms
Block → Canton commit
345ms
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.
0xf88b0b85176f833c0b8254ac947919e636cc2a6edbbb60c3d696509f90f5505a5b80a4552410770000000000000000000000000000000000000000000000000000000000000001831c946ea020bebabadbaad1893265a0ed151c6898e17e1cfa6ef6af45442c1e9dd15fb4dea07d9324f2e1daa6175db1b1ee57bd40e0c8fe5c8135e994f04a7ca47be3e10543