Make an AI conversation verifiable.
Save a portable record of an AI session, verify its exact bytes with SHA-256, and keep a detached receipt you can check later.
*.proofstamp.json
*.proofstamp.receipt.json
Capture. Verify. Keep.
ProofStamp records what the AI environment can legitimately access and keeps the limits of that evidence explicit.
Capture
Use the public prompt or installed Skill to create a portable session record.
Verify
The saved artifact is hashed with SHA-256 and checked against the detached receipt.
Keep
Download the artifact and receipt. Keep them yourself or use the prepared email handoff.
Evidence you can keep.
*.proofstamp.json
Integrity, not truth.
A matching SHA-256 shows that the saved artifact still matches the fingerprint recorded in its receipt.
- It does not prove that the AI output is correct.
- It does not automatically prove that the conversation is complete.
- It does not mean the AI provider authenticated the record.
- It does not prove when the original conversation happened.
ProofStamp this session.
Review the public instructions, then use them in the AI conversation you want to preserve.