Patient-held proof

Your vault

Every consent or medical-decision document is hashed and timestamped the moment you save it — so you can prove, to any provider, exactly what you agreed to and that it has not been altered. You own and carry the record.

Ledger integrity

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What is the hash chain?

Each receipt commits to the one before it, forming an append-only ledger. If any saved record were secretly edited or reordered, the chain would break here. “Intact” means no silent edits were detected.
vault.chain
$ verify --ledger 3 records
✓ hash chain intact — no silent edits detected

Documents

+ Add document
Export vault:Printable summary →
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What do exports contain?

A manifest of records you already own — title, kind, save time, and the SHA-256 fingerprint. It never includes the document contents, so it's safe to hand to a provider as proof.

Showing 3 of 3 documents

  • Informed Consent

    Informed Consent — Wisdom Tooth Extraction

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    Informed Consent

    A form recording that you agreed to a specific procedure after being told the risks, benefits, and alternatives.

    sha256: 4edac9a03aeb3cd59392d0ea…

    saved 6/1/2026 · 1 active share

    ShareVerify
  • Exemption Letter

    Medical Exemption Letter

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    Exemption Letter

    A letter documenting that a specific intervention does not apply to you (e.g. a medical exemption).

    sha256: 4178ba4be80a16e97b43b714…

    saved 6/10/2026 · private — not shared

    ShareVerify
  • Advance Directive

    Advance Directive — Care Preferences

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    Advance Directive

    An advance directive stating your care preferences should you be unable to speak for yourself.

    sha256: 7c2845476daff44cc462e904…

    saved 6/21/2026 · private — not shared

    ShareVerify

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