Know what a file proves.
Choose one file. HUMMBL computes its SHA-256 locally, applies a named verification profile, and reports what the result establishes—and what it does not.
Stays on this device. No file contents are uploaded or persisted.
Have a receipt instead? Verify an HMAC receipt chain.
Selected file
No file selected
- Profile
- Choose a file to begin
- Type
- —
- Size
- —
Not computed
Verification scope
Scoped findings
Results will identify exactly which checks ran.
| Check | Result | Notes |
|---|---|---|
| Waiting for a file | Info | No checks have run. |
A passing result is not certification and does not establish authorship, accuracy, safety, legal compliance, or fitness for purpose.
Governed registry
File catalog
Loading the machine-readable filename × type × purpose matrix.
| Filename | Type | Description / purpose | Use cases | Mode |
|---|
Flagship template family
project-notes.txt templates
Fourteen profiles share a portable core: purpose, context, current state, decisions, next actions, risks, and verification. Each adds the prompts its work needs.
Loading templates…Governance receipt
Verify a signed evidence receipt
Paste a signed governance evidence artifact. The signature is checked locally against the published Ed25519 public key—nothing is uploaded.
Info Waiting for a receipt.
A pass establishes that the artifact was signed by the key published in governance-keys.json and that its payload hash matches. It does not establish that the underlying measurements are accurate.
Assurance boundary
Inspection is not truth.
- Never executed
- Scripts, binaries, documents, media and archives are never executed, mounted, rendered or extracted by this tool.
- Scoped findings
- A hash identifies bytes. Parsing establishes syntax. A template check establishes headings. None establishes factual accuracy.
- Human judgment
- Authorship, evidence quality, safety, applicability and fitness for purpose remain review decisions.