What is another word for check character?
Pronunciation: [t͡ʃˈɛk kˈaɹɪktə] (IPA) 
A "check character" refers to a small piece of data added to information for error detection purposes. This process is used in many applications, including bar coding, data entry, and online security. Synonyms for "check character" include error-checking code, hash value, checksum, and parity bit. An error-checking code, as the name implies, is used for detecting errors and confirming the accuracy of data. A hash value, on the other hand, is a unique value obtained from a string of text that helps to verify the integrity of the information. Checksum and parity bit also perform similar functions, with checksum being a numerical sum of the data entered while the parity bit indicates if the data entry is either odd or even.
