PivotGuard v0.1.0 is an alpha reference implementation.

Please report vulnerabilities privately through the repository owner's preferred contact channel before public disclosure. Include a minimal reproducer, affected protocol version, and expected impact.

• No digital signatures or author authentication.
• No trusted timestamp authority.
• No secure key storage or rotation.
• No persistent append-only log service.
• No carrier embedding or extraction.
• Hashes do not provide confidentiality for guessable inputs.
• The optional semantic-gradient policy depends on application-supplied values.

Do not use this release as the sole basis for legal, financial, medical, identity, or evidentiary claims.