+A **data signature** is a compact, unique digital [fingerprint](/wiki/fingerprint) for a piece of data, representing its essence. It is typically generated by a [hash function](/wiki/hash_function) to ensure data integrity and authenticity, revealing any alteration.
+## See also
+- [Data Integrity](/wiki/data_integrity)
+- [Digital Signature](/wiki/digital_signature)
+- [Hash Function](/wiki/hash_function)
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