inconsistency
Definition
If a reason, idea, opinion, etc. is inconsistent, different parts of it do not agree, or it does not agree with something else. Data inconsistency occurs when similar data is kept in different formats in more than one file. When this happens, it is important to match the data between files.
KERI related
A data structure like a KEL can be internally inconsistent which is a clear indication that this data structure is not verifiable.