A little over 19 years ago, the Necrobloxicon released.
This hat provided an expansion to The Roblox Chronicles, which was official lore written by Shedletsky. It is the very first mention of 1x1x1x1, and not long after, the original 1x1x1x1 account was created by Shedletsky.
Possibly to kickstart an urban legend, the description of the hat changed very quickly afterwards.