Hash appendix

A page at the end of an exhibit listing each source file with its hash.

A hash appendix lists every source image used in the exhibit alongside its SHA-256 fingerprint. It sits at the end of the document, after the message pages and the redaction log.

Its purpose is narrow and practical: anyone who receives an original screenshot can hash it and compare the value to the printed one, and see immediately whether the file has changed.

Last updated 2026-09-01

In practice: Text message evidence PDF: what belongs in the file

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