content_graph.md

Vertex type 1: Cached Descriptive Summary Data

• properties; title, source, rights etc.
• out edges; obtain_content, source_metadata, access point
• in edges; obtain_content, descriptive_summary

Vertex type 2: vernacular metadata (descriptive and technical)

• properties; blob and parsed original data
• out edges; referenced_file
• in edges; source_metadata

Vertex type 3: digital file

• properties; blob and parsed original data [or reference]
• in edges; obtain_content
• out edges; descriptive_summary

Vertex type 4: access point

• properties; authorized heading
• in edges; descriptive_summary

description.json

{
  "#": "properties starting with `#` are comments",
  "__parsed_metadata__": "v0",
  "__id__": "XYZABC",
  "ucldc:title": "xxx",
  "ucldc:creator": "yyy",
  "content": [
    {"label for top node": "xyzabc"},
  ],
  "metadata": [ {"#": "source metadata (points to files as well)"}],
}

description2.json

{
  "#": "properties starting with `#` are comments",
  "__parsed_metadata__": "v0",
  "__id__": "XYZABC",
  "ucldc:title": "xxx",
  "ucldc:creator": "yyy",
  "content": [
    {"label for top node": "xyzabc"},
    [
      {"#": "children nodes"},
    ]
  ]
}

file.json

{
  "#": "properties starting with `#` are comments",
  "__binary_file__": "v0",
  "__id__": "xyzabc",
  "__md__": "XYZABC", "#": "primary metadata reference",
  "bytes": 46202,
  "mime_type": "image/jpeg",
  "efficiency": 0.9984200033593065,
  "sha512":   "74554ce93e58a71a3245c77214312475c065a4f08b65f648413b59f8dc0577810df381b80b1373...81741",
  "loc": [
    "/some/path/to/file",
    "http://some.path.to/file"
  ],
  "services": {
    "download": {},
    "thumbnail": { "#": "info to construct thumbnail URL"},
    "iiif": { "#": "info to construct iiif URL"}
  },
  "#": "show all V.in() and V.out()"
}

file_complex.json

{
  "__binary_file__": "v0",
  "content": [
    '',
  ]
}

file_md.json

{
  "__binary_file__": "v0",
  "mime_type": "application/xml",
}