metadata.md

@@ -5,15 +5,15 @@ Hash metadata
 
 ```
 {
- "title": "Mountains", // no special characters, not unique
- "registrar": "Lisa Kostrzewa", // who has registered, the work, we use an internal UUID which we map in the user metadata database // was field "creator", "registrar"
- "description": "A mountain landscape in Austria",
+ "title": "Mountains", // no special characters, not unique (immutable)
+ "registrar": "Lisa Kostrzewa", // who has registered, the work, we use an internal UUID which we map in the user metadata database // was field "creator", "registrar" (immutable)
+ "description": "A mountain landscape in Austria", (immutable)
  "attribution": "LisK & Kira", // was field "contributors", to be used e.g. for giving attribution in CC license (mutable)
- "publisher": "self", 
+ "publisher": "self", // (immutable)
  "subject": " ", // we will not use that field anymore in the UI
  "creation_date": 2022-03-15 10:00:31, // UTC? - see existing DB // date timestamp without time zone (mutable)
- "type": "image", // set of: text, image, audio, video, mixed 
- "license": "SPDX-License-Identifier: CC-BY-4.0", // in frontend also show link to the license, which we should find in the SPDX database. If full copyright, we write "registrar claims full copyright, no license granted"
+ "type": "image", // set of: text, image, audio, video, mixed (immutable)
+ "license": "SPDX-License-Identifier: CC-BY-4.0", // in frontend also show link to the license, which we should find in the SPDX database. If full copyright, we write "registrar claims full copyright, no license granted" (mutable / immutable) 
  "license_addons": "", //e.g. additional rights, free text
  "identifier": "", //e.g. ISBN number
  "other_license": "Pixabay publishers", // ask Pixabay to obtain a license, or add a dual license (free text)