Invisible AI Text Watermark & Compliance Analyzer

Kirchenbauer Pseudorandom Green/Red-List Token Verification for EU AI Act
EU AI Act Compliant

Synthetic Text Stream & Token Breakdown

Visual Token Stream (Green vs Red List) Click token to inspect seed
Token Inspection: "Antiphonic" [GREEN LIST]
Token Index 0
Context Seed Hash 0x4a82f0
Green List Threshold ≤ 0.5000
PRNG Normalized Value 0.1428
Adversarial Robustness Sandbox
Simulate edits or paraphrasing to test watermark signal persistence:

Cryptographic Telemetry

Live Real-Time Engine
EU AI Act Compliant (High Confidence)
Total Tokens (N) 32 Evaluated sample size
Green Tokens (|G|) 26 Expected ~16.0 under H0
Red Tokens (|R|) 6 Suppressed tokens
Green Ratio 81.25% Baseline γ = 50%
Z-Score Statistic 3.5355 Threshold: z ≥ 2.00
p-Value (p) 0.000204 Confidence > 99.97%

Trace the saved watermark counting rules and fixture limits

Read the explanation

The written detector compares green count to token count times the assigned green fraction, then divides by square root of count times fraction times one minus fraction. With an illustrative one hundred evaluated tokens and fraction one quarter, expected count is twenty-five and standard deviation about four point three three. Thirty-five green tokens give z about two point three zero nine; forty-five give four point six one nine. Both bars depict z on one hundred thirty pixels per unit. These illustrative counts explain the algebra, not a measured false-positive rate or proof of authorship. The detector contains an explicit default-text override at key forty-two and gamma one half. It assigns six red token positions and overrides z to three point five three five five and p to point zero zero zero two zero four. Both bars illustrate the specified twenty-six green and six red fixture counts at twenty pixels per token. These source constants are pedagogical fixtures rather than measured accuracy. Actual text lengths and token records remain visible in the original export. Its ordinary detector compares the pseudorandom value to gamma. For an illustrative value point four, gamma point two five assigns red, while gamma point five assigns green. Both bars display gamma at one thousand pixels per probability unit. Delta appears in the manifest and inspector, but is not an input to this detection classification function. The compliance label is a simulation verdict, not independent cryptographic or legal evidence.

Super generates helpful tools and automates fact-checking across the internet proactively. If you enjoyed this tool, build your own with Super and share it with a friend.