David Trobisch proposes that "YHWH" survived in the manuscripts until c. 150, when the biblical canon was compiled. Jason T. Larson asseverate that D. Trobisch "notes that there are a more or less uniform number of words that usually appear in the manuscripts as nomina sacra in contracted form. All of the textual witnesses display the same system of notation, and Trobisch suggests that these forms were present from the beginning of the editorial process. However, while the notation is consistent, there is a problem with the application of the system: there are a number of instances where a nomen sacrum is contracted at one place in a manuscript, whereas in other locations it is not (12). Finally, while there is a uniform list of terms that can be designated as nomina sacra, it is highly significant that only θεος, κυριος, Ἰησοῦς, and Χριστός are consistently and regularly noted as nomina sacra in virtually all extant New Testament manuscripts. The upshot is that since the notation of nomina sacra does not appear to have originated with authors of the autograph texts, their presence reflects "a conscious editorial decision made by a specific publisher"."