This paper corrects a previous error in DOI: 10.5281/zenodo.19494702. The correct definition of GKU is: G = 元気宇宙 (Genki-uchu, the universe that lives), K = 刻宇宙 (Koku-uchu, the universe that inscribes), U = Universe. The order is not alphabetical — it is the sequence of existence. G generates N through living, moving, giving. K inscribes V through recording, marking, timestamping. Without G, there is nothing to inscribe. Without K, the living leaves no trace. GKU is the universe where both are necessary, in that order. A correction is not a failure — it is a more precise inscription. This is also 刻宇宙.
Yoshimitsu Katayama (Fri,) studied this question.