e/Watermark (data file)

Information
has gloss	eng: A watermark stored in a data file refers to a method for ensuring data integrity which combines aspects of data hashing and digital watermarking. Both are useful for tamper detection, though each has its own advantages and disadvantages.
lexicalization	eng: watermark
instance of	(noun) validating the authenticity of something or someone certification, authentication

Meaning
Czech
lexicalization	ces: Vodoznak