{
  "status": "passed",
  "official_tiktoken": "0.14.0",
  "encoder_cases": 874,
  "scopes": {
    "twcn_screened": 29,
    "twcn_all": 37,
    "hk_nonlow": 28,
    "hk_all": 37,
    "controls": 3
  },
  "study_sha256": "9589f5332e29e3475616917ad9be724d56cb5f79e66abd9737b1c60e842343c6",
  "checks": [
    "official rank and token-ID equivalence (ordinary text)",
    "all measured rows recomputed",
    "UTF-8 byte reconstruction",
    "literal replacement character is not a fragment",
    "complete-item scope counts",
    "exact-control lexical differences zero",
    "baseline decomposition identity",
    "stable bootstrap seed"
  ],
  "limits": [
    "No native-speaker validation",
    "No downstream model evaluation",
    "Browser/live deployment tested separately"
  ]
}