SignedByAHuman

For the age of agents

Human commitment belongs on the record. Human commitment belongs on the record.

Create a public, tamper-evident receipt showing that a person reviewed and accepts responsibility for specific text. SignedByAHuman records a declaration. It does not guess whether AI wrote the words. Create a public receipt showing that a person reviewed and accepts responsibility for specific text.

  • A clear human claim, not a vague AI score
  • A public receipt with a content fingerprint
  • Made for posts, disclosures, statements, and messages
Create a free receipt See what it proves

SignedByAHuman does not detect AI or prove authorship on its own. It records a human attestation and the verification signals behind it.

Free · No account required
1
Add the text Paste or type the public text you want to stand behind.
0 / 10000
Human attestation shown on the receipt
2 Your receipt will say “I reviewed and stand behind this text.”
3
Prove you're human +10 pts A privacy-friendly human check is required before signing.
Add your Captcha site key in web/config.js.
Verification signal strength
Waiting for human check 0 / 110
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Strengthen your signature Optional - add verifications to increase trust.

Start with a real statement

Turn an AI disclosure into something readers can verify.

Choose a starting point, make it accurate for your process, then create a receipt for the exact words you publish.

See disclosure guidance for newsletters and publications

How it works

1. Make a precise claim

Add the public text and say whether you stand behind it, wrote it, or witnessed it.

2. Complete a human check

Turnstile adds bot resistance. Optional account, phone, device, or payment signals can add accountability.

3. Share the receipt

Share the link with your disclosure, post, article, email, or public statement.

FAQ

Does this prove a human wrote the text?

No. It records a person's explicit claim and verification signals. It does not use AI detection or independently prove authorship.

Can I sign AI-assisted text?

Yes. Choose “I stand behind this” when you reviewed the final text and accept responsibility for it.

What does the human check prove?

Turnstile adds bot resistance to the signing event. It does not establish a real-world identity.

Is the receipt tamper-evident?

Yes. The receipt records content fingerprints and a cryptographically signed statement. Changing the text breaks the exact match.

Is my text public?

Yes. Hosted receipt text is available to anyone with its link. Do not submit confidential or personal information.

How long is a receipt available?

Current receipts expire after 365 days. The receipt shows its expiry so you can decide whether that fits your use case.