© 2026 Dignity Labs Ltd · Company 16954194 · Registered in England and Wales
167–169 Great Portland Street, 5th Floor, London, W1W 5PF
Dignity Labs
Dignity Labs
Paste any Arcoo prompt below. ArcooVerify checks that all safety rules are present, unmodified, and carry valid verification tokens.
Every prompt built by Arcoo contains 10 numbered safety rules. Each rule carries a verification token in [AV:xxxxxx] format. These tokens are generated using HMAC-SHA256 with a signing key held offline by Dignity Labs. They cannot be recreated without that key.
ArcooVerify checks two things: that each rule's exact text is present (character by character), and that each rule carries the correct verification token. If the text has been changed or the token is wrong, that rule fails.
This is tamper-evidence, not tamper-prevention. Nobody can stop someone editing text. ArcooVerify tells you whether they did.
Arcoo prompts include safety rules that tell AI to be honest, flag uncertainty, refuse harmful requests, and keep responses age-appropriate. If someone modifies these rules and the AI produces harmful output, ArcooVerify shows exactly which rules were changed.
No other consumer prompt tool offers verifiable safety rules with signed tokens. Most prompt tools have no safety rules at all.