{
  "request": {
    "program": "#! title Three workers, three jobs\n#! about A 3×3 grid: row r is a worker, column c a job, and + means worker r takes job c. Each row and each column holds exactly one +, every other cell -. The first version could not write this above 2×2; here each cell takes only + and -, and every state of lowest energy is one of the six assignments.\n#! expect works\n#! item cell\n#! plus chosen\n#! minus not chosen\n#! check exactly 1 0-1-2 3-4-5 6-7-8 0-3-6 1-4-7 2-5-8\n#\n# Variable 3·r + c is the cell of row r and column c: + chosen, - not.\nvars 9\nexactly 1 0 1 2\nexactly 1 3 4 5\nexactly 1 6 7 8\nexactly 1 0 3 6\nexactly 1 1 4 7\nexactly 1 2 5 8\nsolve restarts=8 steps=40\n",
    "protocol": "wai.quantum.landscape/2",
    "seeds": 4
  },
  "result": {
    "protocol": "wai.quantum.landscape/2",
    "label": "A classical emulator of the settling model of a planned energy-based processor, running on your machine. Energies are computed exactly. The joule line prices a run at temperature 0 at the settle rate measured on an FPGA board running this project's open reference design, with a published figure for one integer add beside it for scale, and leaves a run above temperature 0 unpriced, saying why. No photonic hardware, custom chip or quantum effect is involved in this run.",
    "member": {
      "id": "cpu:reference",
      "class": "cpu",
      "kernel": "wai.quantum.landscape2/sample",
      "parity": "reference"
    },
    "seeds": 4,
    "lines": "1 5d43b1c163c45e32 --+-+-+-- -21 solved 11520 b2f31444d0854232\n2 a55f822b586eb594 -+-+----+ -21 solved 11520 67a126958e09a7c6\n3 270e8be20949cb20 --+-+-+-- -21 solved 11520 77037d933d161315\n",
    "engine": {
      "name": "wai-quantum",
      "version": "0.9.0"
    },
    "schema": "wai.quantum.landscape/2",
    "receipt": {
      "alg": "ed25519",
      "canon": "rfc8785",
      "key": "197f6b23e16c8532c6abc838facd5ea789be0c76b2920334039bfa8b3d368d61",
      "digest": "88238f57bc6b6b3a82548dd34f4b57c72b7b289e02467e5fcfdf14ec940182e4",
      "signature": "16954526803a30b361c2d5281fdc1e2949e899d881cc91f34f3e0ab922b6669f40ef73b457af30d47f355766da5cf06fbc7d688042f066181450f76c8bd9aa04"
    }
  }
}