{
  "version":"0.1.0","updated":"2026-09-26","governance":"primary-source-first",
  "statuses":["Draft","Verified","Canonical","Published"],
  "separationRule":"Archaeology, language history and ethnic identity are distinct evidence layers.",
  "tracks":[
    {"id":"R-001","title":"Ethnogenesis hypotheses","status":"Draft","uncertainty":"high","layers":["archaeology","language","identity"],"note":"Competing reconstructions must be represented separately."},
    {"id":"R-002","title":"Mari language history","status":"Draft","uncertainty":"medium","layers":["language"],"note":"Meadow/Eastern and Western/Hill varieties require explicit scope."},
    {"id":"R-003","title":"Longitudinal population dataset","status":"Draft","uncertainty":"variable","range":"1897–2021","fields":["year","geography","population_or_sample","definition","value","source","confidence"]},
    {"id":"R-004","title":"Onar, Margiz, 1949","status":"Draft","uncertainty":"bibliographic and rights review pending","layers":["myth","archive","material-culture"]}
  ]
}