{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://ktp.example.org/schemas/trust-proof.json",
  "title": "KTP Trust Proof",
  "description": "Signed token carrying Trust Score and environmental context for the Kinetic Trust Protocol",
  "type": "object",
  "required": ["iss", "sub", "iat", "exp", "jti", "ktp"],
  "properties": {
    "iss": {
      "type": "string",
      "format": "uri",
      "description": "Trust Oracle identifier (issuer)"
    },
    "sub": {
      "type": "string",
      "format": "uri",
      "description": "Agent identifier (subject)"
    },
    "iat": {
      "type": "integer",
      "description": "Issued at (Unix timestamp)"
    },
    "exp": {
      "type": "integer",
      "description": "Expiration time (Unix timestamp, max 10 seconds from iat)"
    },
    "jti": {
      "type": "string",
      "description": "Unique token identifier (JWT ID)"
    },
    "ktp": {
      "$ref": "#/$defs/ktpClaims"
    }
  },
  "$defs": {
    "ktpClaims": {
      "type": "object",
      "required": ["e_base", "e_trust", "r", "context", "soul", "lineage"],
      "properties": {
        "e_base": {
          "type": "number",
          "minimum": 0,
          "maximum": 100,
          "description": "Base Trust score (intrinsic agent capability)"
        },
        "e_trust": {
          "type": "number",
          "minimum": 0,
          "maximum": 100,
          "description": "Effective Trust score after environmental deflation"
        },
        "r": {
          "type": "number",
          "minimum": 0,
          "maximum": 1,
          "description": "Risk Factor from weighted Context Tensor dimensions"
        },
        "de_dt": {
          "type": "number",
          "description": "Trust velocity (rate of change per second)"
        },
        "sigma": {
          "type": "number",
          "minimum": 0,
          "description": "Trust volatility (standard deviation)"
        },
        "context": {
          "$ref": "context-tensor.json",
          "description": "The six weighted dimensions of environmental state"
        },
        "soul": {
          "$ref": "soul-constraint.json",
          "description": "Sovereignty constraint evaluation"
        },
        "lineage": {
          "type": "string",
          "enum": ["tethered", "divergent", "persistent"],
          "description": "Agent evolutionary stage"
        },
        "generation": {
          "type": "integer",
          "minimum": 0,
          "description": "Agent generation number"
        },
        "sponsor": {
          "type": "string",
          "format": "uri",
          "description": "Sponsor agent identifier (for tethered agents)"
        },
        "resilience_hash": {
          "type": "string",
          "pattern": "^sha256:[a-f0-9]{64}$",
          "description": "Hash of current Proof of Resilience ledger"
        },
        "zone": {
          "type": "string",
          "description": "Blue Zone identifier where proof was issued"
        },
        "oracle_quorum": {
          "type": "string",
          "pattern": "^[0-9]+-of-[0-9]+$",
          "description": "Threshold signature quorum (e.g., '3-of-5')"
        }
      }
    }
  },
  "examples": [
    {
      "iss": "https://oracle.example.com",
      "sub": "agent:7gen:optimized:a1b2c3d4",
      "iat": 1699900000,
      "exp": 1699900010,
      "jti": "tp-uuid-12345",
      "ktp": {
        "e_base": 87,
        "e_trust": 42,
        "r": 0.517,
        "de_dt": -2.3,
        "sigma": 0.15,
        "context": {
          "m": 0.875,
          "p": 0.920,
          "h": 0.020,
          "t": 1.000,
          "i": 0.100,
          "o": 0.040
        },
        "soul": {
          "s": 0,
          "constraint_type": null,
          "constraint_id": null,
          "authority": null
        },
        "lineage": "persistent",
        "generation": 7,
        "resilience_hash": "sha256:abc123def456789012345678901234567890123456789012345678901234",
        "zone": "zone-blue-prod-01",
        "oracle_quorum": "3-of-5"
      }
    },
    {
      "iss": "https://oracle.example.com",
      "sub": "agent:2gen:data-analyst:xyz789",
      "iat": 1699900100,
      "exp": 1699900110,
      "jti": "tp-uuid-67890",
      "ktp": {
        "e_base": 45,
        "e_trust": 40,
        "r": 0.111,
        "de_dt": 0.5,
        "sigma": 0.08,
        "context": {
          "m": 0.100,
          "p": 0.150,
          "h": 0.050,
          "t": 0.200,
          "i": 0.080,
          "o": 0.100
        },
        "soul": {
          "s": 1,
          "constraint_type": "tk_label",
          "constraint_id": "TK-NC-001",
          "constraint_name": "TK Non-Commercial",
          "authority": "https://localcontexts.org/label/tk-nc/",
          "community": "Example Indigenous Community",
          "remediation": "Contact community data steward for commercial licensing"
        },
        "lineage": "tethered",
        "generation": 2,
        "sponsor": "agent:persistent:data-team:abc123",
        "resilience_hash": "sha256:fedcba987654321098765432109876543210987654321098765432109876",
        "zone": "zone-blue-research",
        "oracle_quorum": "2-of-3"
      }
    }
  ]
}