{
 "phoenix": "0.1",
 "subject": "legion:provider-trust",
 "observation": {
  "metric": "risk_class_distribution",
  "value": {
   "avoid": 1,
   "optimal": 3,
   "insufficient_evidence": 7,
   "review": 2
  },
  "formula_version": "0.2.0",
  "generated_at": "2026-09-27T10:27:02+00:00"
 },
 "claim": {
  "text": "Distribution des classes de risque fournisseur (trust.grid 0.2.0)",
  "state": "derived",
  "limits": "score nul si <60% des dimensions mesurees"
 },
 "evidence": [
  {
   "uri": "evidence/trust_grid.json",
   "sha256": "d23ebba12e51f6d01b9a74d3b576b181d9b2cee508bc32149d4d4cebfabd9e9e",
   "method": "frozen copy of signed LEGION snapshot"
  }
 ],
 "attestation": {
  "alg": "Ed25519",
  "public_key_b64": "ENTr9tUMHipzZIBmrau7pH7+Py6szwCaj/9HKRZp4P8=",
  "digest": "cb596634a9bc57622eea74af0ac870c3e20b6b6ac4f3a3f233262995bb466e4c",
  "signed_at": "2026-09-27T10:27:18+00:00",
  "issuer": "LEGION (legion-api.com)",
  "signature": "6PLOkNArj6tk4hPyyz/2rpJLikdC1dG8P1zjGZqwYDYDOUVPDDUY5BW7G7GRkSCe4RlDn7BEGWS+L87tsG6fAA=="
 }
}