Every order comes with a letter of guarantee: its terms, signed with this key, stating that the order is either completed on the terms in the letter or refunded. The key signs letters of guarantee only, nothing else.
A letter is genuine only if gpg reports a good signature from a key with exactly this fingerprint.
Loading…Download the key or fetch it from https://anonchange.com/pgp.txt.
curl -s https://anonchange.com/pgp.txt | gpg --import
gpg --verify letter.ascgpg should report a good signature and show the fingerprint above. If the text of the letter was changed in any way, the check fails.
Integrating our API? The letter is in every order's guarantee field; see the API documentation.