Attestation Schema (EAS JSON)

{
  "name": "FairwayComplianceV2",
  "fields": [
    { "name": "subject", "type": "address" },
    { "name": "policyId", "type": "bytes32" },
    { "name": "kyc_verified_at", "type": "uint64" },    // unix timestamp
    { "name": "sanctions_epoch", "type": "uint64" },
    { "name": "risk_profile_score", "type": "uint16" },
    { "name": "commitmentRoot", "type": "bytes32" }
  ],
  "revocable": true}