curl "https://api.ionq.co/v0.4/backends/qpu.aria-1/characterizations"

{
  "characterizations": [
    {
      "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "date": "2025-06-16T00:00:00Z",
      "backend": "qpu.aria-1",
      "qubits": 25,
      "connectivity": [
        [
          0,
          1
        ],
        [
          0,
          2
        ],
        [
          10,
          9
        ]
      ],
      "fidelity": {
        "spam": {
          "median": 0.9962,
          "stderr": null
        }
      },
      "timing": {
        "readout": 123,
        "reset": 123,
        "1q": 123,
        "2q": 123,
        "t1": 10,
        "t2": 1
      }
    }
  ],
  "pages": 123
}