This page downloads reviews-chain.json from this repository and re-computes every fingerprint with your browser's own crypto engine. Nothing is sent anywhere.
Copy the rating, the text and the language of a review you see on lexismash.it: its fingerprint must appear in the chain.
Formula: contentHash = sha256(JSON.stringify({rating, text, lang})), hash = sha256(prevHash|seq|id|createdAt|authorRef|rating|contentHash). Source and history: GitHub.