Si5s
si5s is a writing system for American Sign Language that resembles a handwritten form of SignWriting. It was devised in 2003 in New York City by Robert Arnold, with an unnamed collaborator. In July 2010 at the Deaf Nation World Expo in Las Vegas, Nevada, it was presented and formally announced to the public. Soon after its release, si5s development split into two branches: the "official" si5s track monitored by Arnold and a new set of partners at ASLized, and the "open source" ASLwrite. In 2015, Arnold had a falling out with his ASLized partners, took down the si5s.org website, and made his Twitter account private. ASLized has since removed any mention of si5s from their website. Arnold completed his master's thesis, "A Proposal Of the Written System For ASL", at Gallaudet University in 2007, looking at the need for a written form for ASL, and proposing the use of si5s. si5s stresses that the "written system is not to offer readers and scholars how sign language functions but how signers think and communicate in sign language." Its objective is to provide transparency between ASL, as a written language, and other written languages, to allow for a literary study of