{
  "schema": "urachan.content-sources.v1",
  "updated_at": "2026-07-28",
  "current_release": {
    "immutable_per_entry_provenance_available": false,
    "statement": "The current editorial seed predates the v2 per-entry source ledger. Candidate-source listing is not a claim that candidate data is published."
  },
  "sources": [
    {
      "source_key": "unidic",
      "release_key": "2025.12",
      "status": "editorial_validation_only",
      "licence_identifier": "BSD-licence-path",
      "source_url": "https://clrd.ninjal.ac.jp/unidic/",
      "publication_boundary": "No UniDic definition or example is republished as Urachan learning content."
    },
    {
      "source_key": "jmdict-edrdg",
      "release_key": "unselected",
      "status": "candidate_only_not_mapped_to_current_release",
      "licence_identifier": "CC-BY-SA-4.0",
      "source_url": "https://www.edrdg.org/jmdict/j_jmdict.html",
      "publication_boundary": "No source release is approved for v2 import; ShareAlike and attribution remain mandatory if a substantial derivative is published."
    },
    {
      "source_key": "open-english-wordnet",
      "release_key": "2025-edition",
      "status": "quarantined_review_only_not_published",
      "licence_identifier": "CC-BY-4.0",
      "source_url": "https://github.com/globalwordnet/english-wordnet/releases/tag/2025-edition",
      "archive_sha256": "7d749f6e2c39e6970e4997839dcf6e42fd281f3c2fae0171d2192bae8cfa4b51",
      "attribution": "Open English WordNet Community; incorporates material from Princeton WordNet.",
      "publication_boundary": "The 12,000-row external candidate queue is unranked and unreviewed; it is excluded from the published vocabulary count."
    }
  ]
}