<!-- Copyright (C) 2020 Yarmo Mackenbach This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program. If not, see <https://www.gnu.org/licenses/>. Also add information on how to contact you by electronic and paper mail. If your software can interact with users remotely through a computer network, you should also make sure that it provides a way for users to get its source. For example, if your program is a web application, its interface could display a "Source" link that leads users to an archive of the code. There are many ways you could offer source, and different solutions will be better for different programs; see section 13 for the specific requirements. You should also get your employer (if you work as a programmer) or school, if any, to sign a "copyright disclaimer" for the program, if necessary. For more information on this, and how to apply and follow the GNU AGPL, see <https://www.gnu.org/licenses/>. --> <p>Let's add a decentralized Twitter proof to your OpenPGP keys.</p> <h3>Post a Twitter proof message</h3> <p>Log in to <a href="https://twitter.com">twitter.com</a> and compose a new tweet with the following text (make sure to replace FINGERPRINT):</p> <code>This is an OpenPGP proof that connects my OpenPGP key to this Twitter account. For details check out https://keyoxide.org/guides/openpgp-proofs <br><br>[Verifying my OpenPGP key: openpgp4fpr:FINGERPRINT]</code> <p>After posting, copy the link to the tweet.</p> <h3>Update the PGP key</h3> <p>First, edit the key (make sure to replace FINGERPRINT):</p> <code>gpg --edit-key FINGERPRINT</code> <p>Add a new notation:</p> <code>notation</code> <p>Enter the notation (make sure to update with the link to the tweet copied above):</p> <code>proof@metacode.biz=https://twitter.com/USERNAME/status/1234567891234567891</code> <p>Save the key:</p> <code>save</code> <p>Upload the key to WKD or use the following command to upload the key to <a href="https://keys.openpgp.org">keys.openpgp.org</a> (make sure to replace FINGERPRINT):</p> <code>gpg --keyserver hkps://keys.openpgp.org --send-keys FINGERPRINT</code> <p>And you're done! Reload your profile page, it should now show a verified Twitter account.</p>