I can’t find a key with this fingerprint
58117AFA1F85B3EEC154677D615D449FE6E6A235 noted here:
I can find only the key fingerprint 5054 3A3D A4B1 DB81 DA3E 79CB 509C 9D63 34C8 0F11 which is also noted here a few months ago signed by firstname.lastname@example.org:
I searched Ubuntu, MIT, SKS, and GNUPG servers.
Also, can you link you public key in the download page (not just fpr)?