U+1F16E "🅮" Circled C with Overlaid Backslash Unicode Character

U+1F16E "🅮" Circled C with Overlaid Backslash is a rarely used symbol that represents the "copyleft" licensing concept, serving as a counterpart to the more common copyright symbol (©) by allowing unrestricted modification and redistribution of a work as long as any derived works maintain the same freedoms. Its circular design features a capital letter C with a diagonal backslash cutting through it, visually indicating the reversal of traditional copyright restrictions. This character is part of the Enclosed Alphanumeric Supplement block in Unicode, though it has limited support across fonts and digital platforms, often appearing as a blank square or placeholder where the glyph is not available.