Inspect the chain, not just the total.

1. Establish the scope

Identify the project, model, version, viewable and subject or element set. Check that the visible result and the recorded evidence refer to the same scope.

2. Follow the authority chain

Review identity, system classification, contract, recipe, material requirements and product selection. Identify the governing versions instead of relying on names alone.

3. Check the calculation basis

Inspect quantities, units and the bound price evidence. For carbon, establish the declared unit, indicator, lifecycle modules and source. Treat missing evidence as unresolved.

4. Inspect the receipt

Review the recorded dependencies and output. Check what is preserved when a later input changes, and what replay or verification the particular receipt implementation supports.

5. Record the limits

State coverage, exclusions and unresolved items beside the result. This guide is a review checklist, not an independent certification, assurance report or published API schema.