All projects on Base matching “notary”

Scan text or a public page for prompt injection before your agent reads it: overrides, fake roles, exfiltration, tool abuse, payment asks, invisible Unicode/HTML-hidden instructions, base64. Rule-based evidence, signed and logged.

Notarize AI output: a signed Ed25519 attestation of the model response plus sha256 content hash, receipt token, and Merkle anchor status for one AI inference — a cryptographic receipt for inference that lets you prove an AI said X and verify model output authenticity, checkable free by anyone, anytime.

Timestamp a SHA-256 hash: returns a stored, server-signed receipt (id, hash, label, timestamp, signer, message, signature, verify URL) proving the hash was presented at that time.

Signed proof of what a web page said: give a URL, get its text, screenshot and TLS details with a timestamped cryptographic signature anyone can verify.