SIGMA PROOFKIT
A local Windows workflow for packaging a defined file set, recording SHA-256 checksums, checking whether files still match, and producing readable PDF records.
Useful when: project handoffs, inspection records, or internal reviews require a repeatable file inventory and integrity-check record.
Best fit: repeated selected-file handoffs and integrity records. For a single hash check, Windows PowerShell may be enough. Understand what a file hash can and cannot establish.
Important limit: matching hashes compare bytes to a recorded reference. They do not establish authorship, truth, legal admissibility, or a complete chain of custody.
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