{
  "spec": "JouleClaw cross-standards binding v1",
  "schema_id": "cross-binding/1",
  "canonical_encoding": "JSON with sorted object keys (recursively); UTF-8; no whitespace; no float coercion. content_hash is BLAKE3 hex of the canonical bytes.",
  "note": "One vector: a well-formed binding across JouleClaw cascade + Sandbox attestation + Joule-Code op, all quoting the same trace id, joules in agreement, both energy readings HwShunt. The verifier MUST accept this binding and compute the embedded content_hash byte-equal under canonical encoding.",
  "vector_count": 1,
  "vectors": [
    {
      "n": 1,
      "description": "Well-formed binding: L3 cascade + S5 sandbox (Cpu+Gpu) + L3 coding op; 2.5 J across all three; HwShunt provenance; same trace id.",
      "content_hash": "5c5dcf58b363a91d1cf199729427417b954fbcb9d5efd644db2cd977ddcf33a5",
      "binding": {
        "jc_binding": "cross-binding/1",
        "id": "xb-conf-0001",
        "closed_at": "2026-06-05T00:00:00Z",
        "steward": "did:keri:EJ9testStewardAID000000000000000",
        "trace_id": "b3:trace0001trace0001trace0001trace0001trace00000000",
        "cascade": {
          "receipt_id": "rcpt-cascade-conf-0001",
          "content_hash": "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
          "tier": "L3",
          "joules_uj": 2500000,
          "energy_provenance": "HwShunt",
          "steward": "did:keri:EJ9testStewardAID000000000000000",
          "trace_id": "b3:trace0001trace0001trace0001trace0001trace00000000",
          "authorised_device_classes": ["Cpu", "Gpu"]
        },
        "sandbox": {
          "receipt_id": "b3:rcpt0001rcpt0001rcpt0001rcpt0001rcpt000000000",
          "content_id": "b3:cid0001cid0001cid0001cid0001cid000000000000000",
          "tier": "S5",
          "granted_device_classes": ["Cpu", "Gpu"],
          "joules_uj": 2500000,
          "energy_provenance": "HwShunt",
          "supervisor_pubkey_hex": "6e7a1cdd29b0b78fd13af4c5598feff4ef2a97166e3ca6f2e4fbfccd80505bf1",
          "trace_id": "b3:trace0001trace0001trace0001trace0001trace00000000"
        },
        "coding": {
          "op_id": "b3:op0001op0001op0001op0001op0001op00000000000000",
          "prior": "b3:AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA",
          "tier": "L3",
          "author_pubkey_hex": "d75a980182b10ab7d54bfed3c964073a0ee172f3daa62325af021a68f707511a",
          "trace_id": "b3:trace0001trace0001trace0001trace0001trace00000000"
        },
        "declared_provenance": "HwShunt",
        "joule_tolerance_uj": 0
      }
    }
  ]
}