{
  "id": "v12-org-countersig-valid",
  "chapter": "03",
  "title": "organization countersignature over eformogi-witness-countersig-v1: + the att_ leaf bytes verifies against the did:web key",
  "check": "countersig",
  "input": {
    "leaf_payload": "{\"issued_at\":\"2026-07-17T12:00:00.000Z\",\"prefix\":\"att\",\"receipt_id\":\"att_abcdefabcdef\",\"sha256\":\"bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\"}",
    "org_countersig": "z5QvBbxGLfzQZ8h8K6ioC1qMSz6Y48aZTNX6YtfVGSMGpUGLykYZMsHPFidtHaEx8N2wDUSktW6efbgPsMizH4oAj",
    "org_key_id": "did:web:eformogi.com#key-1",
    "public_jwk": {
      "kty": "OKP",
      "crv": "Ed25519",
      "x": "MyCIAfaiLiBXey2NF_dK0b1ighUr0ticiuPiiGV6UOo"
    }
  },
  "expect": {
    "verdict": "pass"
  }
}