AuthProofAuthProof

Built for Journalists & Media Teams

Prove What Existed - Before Authenticity Is Questioned

Create tamper-evident proof records for source documents, images, and reports - including AI-assisted edits in modern newsrooms. Preserve integrity, flag prior similarity when policy thresholds apply, document chain of custody, and share verification certificates third parties can inspect independently.

Proving digital evidence has gotten harder

The trust crisis is real

Digital evidence is easy to alter or dispute

When authenticity is challenged, newsrooms need more than screenshots - they need verifiable proof of what existed and when.

Source material lacks a durable integrity record

User-submitted images, documents, and drafts often have no chain-of-custody trail before they enter editorial review.

Readers cannot independently verify claims

Publishing alone does not give audiences a way to inspect whether content has changed since submission.

If you publish content, trust is your currency.

AuthProof creates verifiable proof records

Cryptographic integrity first - with supplementary signals for editorial context

Create SHA-256 integrity fingerprints at submission
Maintain chain-of-custody audit trails
Apply optional Ed25519 cryptographic signatures
Share public verification certificates
Content similarity registry checks and supplementary writing-style signals for AI-assisted drafts

How It Works

1

Submit content

Upload documents, images, or text from your editorial workflow.

2

Register proof

AuthProof computes a SHA-256 fingerprint and creates a tamper-evident proof record.

3

Enrich the record

Content similarity registry checks and optional writing-style analysis add editorial context for human, AI-assisted, and hybrid drafts - without replacing cryptographic proof.

4

Verify independently

Share a verification certificate or signed PDF anyone can inspect.

Built for trust, security, and transparency

Content similarity registry checks
SHA-256 content fingerprinting
Signed verification reports
Tamper-proof PDFs
Public verification pages

For Journalists and Media Teams

Preserve source evidence with SHA-256 integrity fingerprints
Share verification certificates with editors and stakeholders
Optionally sign records with your Ed25519 key

When digital evidence is easy to dispute…

Verifiable proof is your competitive advantage.

Start creating proof records today.

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