This contains my signify public keys, a key is only used for it's current year. The old keys are provided for historical reasons and used to only be valid for 6 months. Software: - Included in OpenBSD - For other systems I would recommend: https://github.com/jedisct1/minisign You can verify the key from 2021-04 with the key from 2020-05 with this command: signify -V -p 2020-05.pub -x 2021-04.pub -m 2021-04.pub.2020-05.sig