U+E0031 "󠀱" Tag Digit One Unicode Character

U+E0031 "󠀱" Tag Digit One is part of the Tags block, a special set of invisible formatting characters used primarily for language tagging in plain text, as specified by Unicode's legacy tag mechanism. This character represents the digit "1" in a coded tag sequence, but unlike standard digits, it is not intended for visible display; instead, it forms part of a hidden string of tag characters that can be processed by software to convey metadata, such as indicating a specific language or script for the surrounding text. Because of its invisible nature and limited practical use in modern systems, it is rarely encountered in everyday text and is mainly a relic of older text encoding practices.