Letter of Guarantee Verifier

Legitimate custodial mixers issue a signed letter of guarantee for every deposit. If there is ever a dispute, that letter is the only proof that ties your deposit address to the operator. Use this tool to verify the signature locally before you send any follow-up messages.

The verifier runs completely in your browser using OpenPGP. Paste the mixer\u2019s letter, pick the service you used, and click verify. If the signature is invalid, stop immediately and contact the operator through their official support channels before proceeding.

After verifying, store the letter offline together with the transaction ID so you can prove ownership if the mixer ever needs to investigate.

Verify Letter of Guarantee

This tool allows you to verify the letter of guarantee that you receive from any mixer, without installing special software. It requires Javascript to work.

It is very important that you authenticate your letter of guarrantee to avoid getting scammed, as the letter acts as a legally-binding contract between you and mixer, and insures you from potential loss. It is the only way you can get customer support or a refund if something goes wrong during a mix.

This verification tool runs locally on your browser and does not use browser APIs or fetch data or scripts from other servers. You can even run it offline.