I am trying to reconstruct what the 66 emoji compatibility symbols that were included in some old drafts originally mapped to, but useful information on the web seems a bit sparse. It was fairly easy to figure out that compatibility symbols 1 through 16 eventually became proper characters (or sequences) and turned into ๐ป, ๐ผ, ๐ฝ, ๐พ, ๐ฟ, ๐จ๐ณ, ๐ฉ๐ช, ๐ช๐ธ, ๐ซ๐ท, ๐ฌ๐ง, ๐ฎ๐น, ๐ฏ๐ต, ๐ฐ๐ท, ๐ท๐บ, ๐บ๐ธ, and โฟ. However, that still leaves 50 symbols that don't correspond to any Unicode characters.
I did find this project <https://github.com/suzukitakafumi/emojicodecs/blob/master/emojicodecs/emojidata.py> that assigned names to private-use codepoints, and the related mappings from those codepoints to the different carrier sets <https://github.com/suzukitakafumi/emojicodecs/tree/master/emojicodecs/mappings>. Unfortunately, I still donโt know what images or meanings were associated with those numbers. Searching for SoftBank emoji gave me a neatly organized list of 404 errors and KDDI was equally fruitless. Documents on the Unicode website itself regularly mention that EMS 17 through 66 are needed for round-trip mappings but never what these mappings actually were as far as I could find. Does anybody have this information available?
