Double-entry bookkeeping system. Double-entry bookkeeping, in accounting, is a system of bookkeeping so named because every entry to an account requires a corresponding and opposite entry to a different account.
The triangular, white corpse-hat consists of a small strip of cloth, cut or folded into a triangle, which covers the forehead and wraps around the back of the head. It works like a headband, and the Japanese use the word boshi (hat) or nuno (cloth) when describing it. The cloth is not a consistent item on the costume of a yurei, a Japanese ghost. As with everything else in life, burial fads come and go. Although the white burial kimono, called a kyÅkatabira, has stayed the same for centuries, the same thing cannot be said about the cloth.
This mask was considered to be a Sith artifact that encouraged the wearers to slowly destroy themselves for greater power. The lost mask of Darth Nihilus was imbued with the dark energy of the Sith Lord, allowing any who wore the ghost-white mask the power to wield the Force as if they were an apprentice. The mask was inside a crate in the wreckage of a Dynamic-class freighter ship on the planet Volik.