-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 I am transitioning GPG keys from an old 2048-bit RSA key to a new 256-bit ED25519 key. The old key will continue to be valid for some time, but I prefer all new correspondence to be encrypted in the new key, and will be making all signatures going forward with the new key. This transition document is signed with both keys to validate the transition. If you have signed my old key, I would appreciate signatures on my new key as well, provided that your signing policy permits that without re-authenticating me. The old key, which I am transitional away from, is: pub rsa2048/E9C5A2D90898A02F 2014-08-31 Artyom V. Poptsov Primary key fingerprint: D0C2 EAC1 3310 822D 98DE B57C E9C5 A2D9 0898 A02F The new key, to which I am transitioning, is: pub ed25519/D0BD44C0F7BFDA83 2026-07-06 Artyom V. Poptsov Primary key fingerprint: 025F 748B 9567 1495 03FC 74D9 D0BD 44C0 F7BF DA83 To fetch the full new key from a public key server using GnuPG, run: gpg --keyserver keys.openpgp.org --recv-key 025F748B9567149503FC74D9D0BD44C0F7BFDA83 If you have already validated my old key, you can then validate that the new key is signed by my old key: gpg --check-sigs 025F748B9567149503FC74D9D0BD44C0F7BFDA83 If you then want to sign my new key, a simple and safe way to do that is by using caff (shipped in Debian as part of the "signing-party" package) as follows: caff 025F748B9567149503FC74D9D0BD44C0F7BFDA83 Please contact me (for example via e-mail at ) if you have any questions about this document or this transition. Artyom V. Poptsov poptsov.artyom@gmail.com 2026-07-30 -----BEGIN PGP SIGNATURE----- iQEzBAEBCgAdFiEE0MLqwTMQgi2Y3rV86cWi2QiYoC8FAmprECkACgkQ6cWi2QiY oC8kcwgAtwDqbKOejYdiqU5fkzmv71jxkddzO1na1I/s7bXInW66BwU4VN60NCsY qZ7JFKMOCrmPrS1lG1ouLwLe6ofWdkYyfzXgnxB/cLYyi6r3Qd5gODrC8RfF44UX V+P1STE0n71T2lmTR36MMaUj9yywQwt1ihnrDWrJeD5pWu+5LcjZkKG18VBj/4CL ZEXk2BrShJ9ODaPAF6Q6+DTPeWOw7U7qrvPv9gzzaIhGn9o5lZL3ErC9z4alkcsV NiwGp0dWUCTjHULvMtSumWKgEjkMkLwwkxjdN950wUcEqNXAMNnzC5iO0Ln7U+b2 umGijXsyIs/Za48V+CaLSXhkxpVQ+oh1BAEWCgAdFiEEKTCkpZfJYNkuj14TrflW aYSz5fEFAmprECwACgkQrflWaYSz5fFTHgD+MrXBJuqJrC0KDDag6+aUEYykAQwS 24EJi38iVFlbN3YA/RLKPLLbHnKNtPLoyQoqu2NdTTlJVTiaSgAAJdZRYPIN =KgQU -----END PGP SIGNATURE-----