Writeprint is a method in forensic linguistics of establishing author identification over the internet, likened to a digital fingerprint.
Identity is established through a comparison of distinguishing stylometric characteristics of an unknown written text with known samples of the suspected author (writer invariants).
Even without a suspect, writeprint provides potential background characteristics of the author, such as nationality and education.
[1] There are five broad aspects to author identification in writeprint: While the five features above are the traditional methods of author identification, there are features unique to online text.
Features such as choice in font, the use of emojis, and links to other websites all provide a path to identification which is absent in traditional text analysis.