Clan Glyph

The Clan Glyph is a symbol representing a Dai Clan. Normally located on a harness that criss-crosses the Dai's chest, as well as on the ships belonging to that clan.

An expert in interpreting Clan Glyphs can learn the lineage of a clan by examining it's Glyph, with clans that can trace themselves to the end of the Forbidden Past in general having simpler Glyphs, a clan that is an off-shoot of one of those having a simplified version of the original glyph as a component of the new clan's glyph.

Union Dai
After 1500 clans joined the Union in 5017 some of their members, starting with those joining the United Stars Military, but later others as well, started to adopt the Union Flag as a "Clan Glyph" symbolizing the Union as a whole is their Clan.

That doesn't mean that the clan they and their immediate ancestors belonged to is forgoten, to the contrary, those clans that have joined the Union now have a lot more means to preserve their history than before.