Reporting packet intake control

A reporting packet intake control creates a reproducible record of what the preparer received before analysis began. Record the entity, reporting basis, period, currency, units, cutoff, handoff time, file name, source owner, version, and file hash. Preserve the original packet read-only and place later additions or replacements in a dated change log.

The control freezes evidence; it does not claim that the evidence is correct or complete. A file named “final” can still use the wrong period. Two files with the same title can contain different formulas. The hash and manifest let a reviewer identify the exact version used for a conclusion.

For example, if a signed amendment arrives Tuesday, retain Monday's missing-document state and add the new file with its received time and owner. Link the change to every issue, model, entry, and disclosure it affects. Do not silently overwrite the earlier document.

Intake ends when another reviewer can reconstruct the initial packet and each later change. Source packet completeness is a separate test against the expected evidence for each issue. The intake control also does not provide audit assurance or authorize use of a document whose authenticity or scope remains unresolved.