Verify a document — AI detection, sources, hidden characters, one signed record

Samples:

0 words · minimum 250

What Verify checks

AI DetectionHow machine-like the text reads — with the error rate

Character CheckHidden characters, look-alike letters and watermark carriers — free, on every document

Source Check betaWhere this language appears elsewhere — the open web and scholarly sources · Individual and up

Nota Record — keep the documentEvery document gets a signed record. Off: your account keeps the hash and the numbers. On: the stored record carries the text, so its PDF is complete later.

Source Check returns pages and matched spans — never a plagiarism verdict. The record you download right after verifying always contains the document either way.

The result lands here

What this model thinks, in a sentence — with its band
AI-likeness 0–100 — resemblance, never % of authorship
The measured false-positive rate beside every score
Twelve writing measurements as evidence, never averaged in

Abstains under 250 words. Pasted text is discarded by default.

How to read a result →