AIAuth — Chain of Custody for AI Work

AIAuth turns AI-generated work into a verifiable record of human review. Select the content you want to stand behind, right-click, and choose "Attest selection with AIAuth". The extension computes a cryptographic fingerprint of the selection on your device, sends only that fingerprint to the AIAuth signing server, and returns a signed receipt you can share or store. The original text is never transmitted. Each receipt records: - A SHA-256 fingerprint of the content you reviewed - The time you reviewed it - The time-to-attest (how long you had the content on screen before signing) - An Ed25519 signature from the AIAuth signing key Anyone with the receipt and the AIAuth public key can verify that the content you shared matches the content you attested, without ever seeing the original text. Why this matters - Publishers, compliance teams, and counterparties increasingly need to know whether AI-assisted output has been human-reviewed. - AIAuth provides that evidence without logging the content itself. - Receipts form a chain: edit the reviewed content and the chain surfaces the change. What AIAuth does NOT do - It does not read, store, or transmit the content of the pages you visit. - It does not run on sites other than the AI tools you choose to attest from. - It does not send content to any server — only the one-way SHA-256 hash. Works alongside any AI tool you already use. The extension is only active when you invoke it by right-click; it has no background page-monitoring. Free for individual use. Enterprise tier available for organizations that need self-hosted signing, compliance dashboards, and policy controls at aiauth.app. Open source at https://github.com/chasehfinch-cpu/AIAuth Privacy policy at https://aiauth.app/privacy