pub const TX_UNIVERSE_VALUE: &[u8];Expand description
Singleton value for the internal IndexDimension::TxUniverse marker.
Like EVENT_EXTANT_VALUE, it is a single placeholder byte so the encoded
key has the standard [tag, value...] shape and passes BitmapKey::new’s
length invariant. The key never reaches storage — backends recognize the
tag at scan time and synthesize full buckets over the requested range.