Arti belongs to LibrarianArti
https://twitter.com/ArtistOrphy
https://www.furaffinity.net/user/artistorphy
Examples of referring to Artie as he/him or is considered male:
'Artie's little magic spell to keep his junk hidden from library goers seems to be wearing off...' (https://e621.net/posts/3621635)
'He may be a little shy at first, but you'll soon find out, there's a kinkier side of him to discover! 😈🍑' (https://www.furaffinity.net/view/48652754/)
'Gender - Male' , 'Arti's the top of dude to rock a dress, and rock it well. Doesn't leave much to the imagination though.' (https://www.furaffinity.net/view/51988385/)