"digital watermark" meaning in English

{
  "forms": [
    {
      "form": "digital watermarks",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "digital watermark (plural digital watermarks)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Computing",
          "orig": "en:Computing",
          "parents": [
            "Technology",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Auxiliary data embedded in a datafile for subsequent identification and verification of the file."
      ],
      "id": "en-digital_watermark-en-noun-iQJ4L5mn",
      "links": [
        [
          "computing",
          "computing#Noun"
        ],
        [
          "embedded",
          "embed"
        ],
        [
          "datafile",
          "datafile"
        ]
      ],
      "raw_glosses": [
        "(computing) Auxiliary data embedded in a datafile for subsequent identification and verification of the file."
      ],
      "topics": [
        "computing",
        "engineering",
        "mathematics",
        "natural-sciences",
        "physical-sciences",
        "sciences"
      ],
      "translations": [
        {
          "code": "ca",
          "lang": "Catalan",
          "sense": "embedded auxiliary data",
          "tags": [
            "feminine"
          ],
          "word": "filigrana"
        },
        {
          "code": "ca",
          "lang": "Catalan",
          "sense": "embedded auxiliary data",
          "tags": [
            "feminine"
          ],
          "word": "marca d'aigua"
        },
        {
          "code": "da",
          "lang": "Danish",
          "sense": "embedded auxiliary data",
          "tags": [
            "neuter"
          ],
          "word": "digitalt vandmærke"
        },
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "embedded auxiliary data",
          "word": "vesileima"
        },
        {
          "code": "fr",
          "lang": "French",
          "sense": "embedded auxiliary data",
          "tags": [
            "masculine"
          ],
          "word": "tatouage numérique"
        },
        {
          "code": "el",
          "lang": "Greek",
          "roman": "psifiakó ydatósimo",
          "sense": "embedded auxiliary data",
          "tags": [
            "neuter"
          ],
          "word": "ψηφιακό υδατόσημο"
        },
        {
          "code": "nb",
          "lang": "Norwegian Bokmål",
          "sense": "embedded auxiliary data",
          "tags": [
            "neuter"
          ],
          "word": "digitalt vannmerke"
        }
      ],
      "wikipedia": [
        "Digital watermarking"
      ]
    }
  ],
  "word": "digital watermark"
}

{
  "forms": [
    {
      "form": "digital watermarks",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "digital watermark (plural digital watermarks)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "en:Computing"
      ],
      "glosses": [
        "Auxiliary data embedded in a datafile for subsequent identification and verification of the file."
      ],
      "links": [
        [
          "computing",
          "computing#Noun"
        ],
        [
          "embedded",
          "embed"
        ],
        [
          "datafile",
          "datafile"
        ]
      ],
      "raw_glosses": [
        "(computing) Auxiliary data embedded in a datafile for subsequent identification and verification of the file."
      ],
      "topics": [
        "computing",
        "engineering",
        "mathematics",
        "natural-sciences",
        "physical-sciences",
        "sciences"
      ],
      "wikipedia": [
        "Digital watermarking"
      ]
    }
  ],
  "translations": [
    {
      "code": "ca",
      "lang": "Catalan",
      "sense": "embedded auxiliary data",
      "tags": [
        "feminine"
      ],
      "word": "filigrana"
    },
    {
      "code": "ca",
      "lang": "Catalan",
      "sense": "embedded auxiliary data",
      "tags": [
        "feminine"
      ],
      "word": "marca d'aigua"
    },
    {
      "code": "da",
      "lang": "Danish",
      "sense": "embedded auxiliary data",
      "tags": [
        "neuter"
      ],
      "word": "digitalt vandmærke"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "embedded auxiliary data",
      "word": "vesileima"
    },
    {
      "code": "fr",
      "lang": "French",
      "sense": "embedded auxiliary data",
      "tags": [
        "masculine"
      ],
      "word": "tatouage numérique"
    },
    {
      "code": "el",
      "lang": "Greek",
      "roman": "psifiakó ydatósimo",
      "sense": "embedded auxiliary data",
      "tags": [
        "neuter"
      ],
      "word": "ψηφιακό υδατόσημο"
    },
    {
      "code": "nb",
      "lang": "Norwegian Bokmål",
      "sense": "embedded auxiliary data",
      "tags": [
        "neuter"
      ],
      "word": "digitalt vannmerke"
    }
  ],
  "word": "digital watermark"
}