autotypic
/ɔːtəˈtɪpɪk/Definitions
1. adjective
Relating to self-typing or self-insertion of one’s own text, images, or other content into a digital environment, often for the purpose of creating a digital signature or leaving a personal mark.
“The user’s autotypic signature was a distinctive pattern of pixels that appeared at the end of every online post.”
2. noun
A self-inserted or self-typed digital signature, image, or other content that is characteristic of an individual’s online identity.
“The autotypic was a recognizable part of the user’s online persona.”