# xmpp ## Proof Proofs are defined by adding the following information to the **About** section of the profile's vCard information using a client that support editing that information: ``` This is an OpenPGP proof that connects my OpenPGP key to this XMPP account. For details check out https://keyoxide.org/guides/openpgp-proofs [Verifying my OpenPGP key: openpgp4fpr:FINGERPRINT] ``` Make sure to replace `FINGERPRINT`. ## Claim ``` xmpp:XMPP_ID ``` or with OMEMO: ``` xmpp:XMPP_ID?omemo-sid-OMEMO_DEVICE_ID=OMEMO_FINGERPRINT&... ``` Make sure to replace `XMPP_ID`, `OMEMO_DEVICE_ID` and `OMEMO_FINGERPRINT`.