{
  "pnonces": [
    "020151C80F435648DF67A22B749CD798CE54E0321D034B92B709B567D60A42E66603BA47FBC1834437B3212E89A84D8425E7BF12E0245D98262268EBDCB385D50641",
    "03FF406FFD8ADB9CD29877E4985014F66A59F6CD01C0E88CAA8E5F3166B1F676A60248C264CDD57D3C24D79990B0F865674EB62A0F9018277A95011B41BFC193B833",
    "020151C80F435648DF67A22B749CD798CE54E0321D034B92B709B567D60A42E6660279BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798",
    "03FF406FFD8ADB9CD29877E4985014F66A59F6CD01C0E88CAA8E5F3166B1F676A60379BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798",
    "04FF406FFD8ADB9CD29877E4985014F66A59F6CD01C0E88CAA8E5F3166B1F676A60248C264CDD57D3C24D79990B0F865674EB62A0F9018277A95011B41BFC193B833",
    "03FF406FFD8ADB9CD29877E4985014F66A59F6CD01C0E88CAA8E5F3166B1F676A60248C264CDD57D3C24D79990B0F865674EB62A0F9018277A95011B41BFC193B831",
    "03FF406FFD8ADB9CD29877E4985014F66A59F6CD01C0E88CAA8E5F3166B1F676A602FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFC30"
  ],
  "valid_test_cases": [
    {
      "pnonce_indices": [0, 1],
      "expected": "035FE1873B4F2967F52FEA4A06AD5A8ECCBE9D0FD73068012C894E2E87CCB5804B024725377345BDE0E9C33AF3C43C0A29A9249F2F2956FA8CFEB55C8573D0262DC8"
    },
    {
      "pnonce_indices": [2, 3],
      "expected": "035FE1873B4F2967F52FEA4A06AD5A8ECCBE9D0FD73068012C894E2E87CCB5804B000000000000000000000000000000000000000000000000000000000000000000",
      "comment": "Sum of second points encoded in the nonces is point at infinity which is serialized as 33 zero bytes"
    }
  ],
  "error_test_cases": [
    {
      "pnonce_indices": [0, 4],
      "error": {
        "type": "invalid_contribution",
        "signer": 1,
        "contrib": "pubnonce"
      },
      "comment": "Public nonce from signer 1 is invalid due wrong tag, 0x04, in the first half",
      "btcec_err": "invalid public key: unsupported format: 4"
    },
    {
      "pnonce_indices": [5, 1],
      "error": {
        "type": "invalid_contribution",
        "signer": 0,
        "contrib": "pubnonce"
      },
      "comment": "Public nonce from signer 0 is invalid because the second half does not correspond to an X coordinate",
      "btcec_err": "invalid public key: x coordinate 48c264cdd57d3c24d79990b0f865674eb62a0f9018277a95011b41bfc193b831 is not on the secp256k1 curve"
    },
    {
      "pnonce_indices": [6, 1],
      "error": {
        "type": "invalid_contribution",
        "signer": 0,
        "contrib": "pubnonce"
      },
      "comment": "Public nonce from signer 0 is invalid because second half exceeds field size",
      "btcec_err": "invalid public key: x >= field prime"
    }
  ]
}