noban Trust Mark

Verify the history before you buy.

Drop a signed bundle from a seller. This page checks the Ed25519 signer pin, recomputes every hash, checks chain links, and shows plain-English claims. No app install. No account. No upload.

WebCrypto Ed25519 offline after load green valid red tampered or wrong signer
Drop Trust Mark JSON here or choose a bundle from disk
Verifier result WAITING FOR BUNDLE

Valid bundles show green. Tampered or wrong signer bundles show red.

    badge snippet

    Paste this one-line badge into a listing after the bundle verifies.

    <a class="noban-trust-badge" href="https://noban.gg/verify">verified-conservative history</a>

    What gets checked

    The browser repeats the proof path.

    A valid result means the dropped bundle is internally signed by its pinned public key and the buyer-facing claims are tied to that signed chain.

    01 SIGNER PIN

    The public key in the bundle must match every signed ledger entry.

    02 HASH RECOMPUTE

    Each record is canonicalized and hashed again with SHA-256.

    03 CHAIN LINK

    Every entry must point to the previous entry hash, starting from the genesis hash.

    04 SIGNATURE

    WebCrypto verifies the Ed25519 signature over each entry hash.