{
  "schema_version": 1,
  "contract_version": 1,
  "locked_at": "2026-07-13T00:00:00Z",
  "locked_by": "DGR-001",
  "plan_id": "dgr-001-controlled-whole-model-baseline-v1",
  "thresholds": {
    "min_decode_speedup": 1.25,
    "max_ttft_ratio": 1.25,
    "min_aggregate_throughput_speedup": 1.25,
    "max_resident_memory_ratio": 0.75,
    "max_artifact_size_ratio": 0.6,
    "min_quality_exact_match_rate": 0.9,
    "min_quality_mean_similarity": 0.97,
    "max_failure_rate": 0.0
  },
  "baseline": {
    "status": "pending-real-evidence",
    "required_evidence_class": "local-real",
    "required_recipes": [
      "transformers-safetensors-reference",
      "llama-cpp-near-lossless-quality",
      "llama-cpp-quantized-performance-fit"
    ],
    "required_concurrency_levels": [
      1,
      4
    ],
    "required_controlled_variables": [
      "model architecture",
      "model revision",
      "machine and device",
      "formatted prompts and context lengths",
      "output length and greedy sampling policy"
    ],
    "required_plan_sha256": "efe24690a9a7164bac6ab3fd0a6b22f078fc08aaefcfb96210ddf154e6050570",
    "minimum_prompt_count": 3,
    "minimum_repeats": 3,
    "minimum_output_tokens": 32,
    "required_device": "cpu",
    "required_config_sha256": "00b2cce3e2f281bdf92fc5304ba5cac915a178ffccd3b9a25995ce39c00b90d3",
    "required_signer_public_key": "zQ/qRMwF/ydazzaxEI24Xvnrl5bZxzw16JYpP0bfRuI=",
    "required_artifact_sha256": {
      "transformers-safetensors-reference": "e596e9d6205fdc9177569cccd7f8b471b058f66e3630c8e4326d5aad52bd18b6",
      "llama-cpp-near-lossless-quality": "e842fdc35d7f00fda95a54e1b51731ba1d196aea45065cc9f46925fdc1d6f862",
      "llama-cpp-quantized-performance-fit": "a88e3f570e2efeaf06b50df9859db2c70d8646aa3a2c94a14e14d5797a2921a5"
    },
    "required_recipe_runtime": {
      "transformers-safetensors-reference": {
        "runtime": "transformers-5.13.0",
        "weight_format": "safetensors",
        "weight_quantization": "bfloat16",
        "device": "cpu"
      },
      "llama-cpp-near-lossless-quality": {
        "runtime": "llama.cpp-9991-e920c523",
        "weight_format": "gguf",
        "weight_quantization": "bfloat16",
        "device": "cpu"
      },
      "llama-cpp-quantized-performance-fit": {
        "runtime": "llama.cpp-9991-e920c523",
        "weight_format": "gguf",
        "weight_quantization": "Q4_K_M",
        "device": "cpu"
      }
    },
    "required_backend_detail": {
      "transformers-safetensors-reference": "torch 2.10.0+rocm7.13.0a20260513; dtype bfloat16; device cpu; intra-op threads 16",
      "llama-cpp-near-lossless-quality": "version: 9991 (e920c523) | built with GNU 15.2.1 for Linux x86_64; binary sha256 fd8fe612970f23e447f2e717cfa51665be06b8d7315ba60556e010f6bca510dd; threads 16; parallel slots 4; ctx/slot 512; gpu layers 0",
      "llama-cpp-quantized-performance-fit": "version: 9991 (e920c523) | built with GNU 15.2.1 for Linux x86_64; binary sha256 fd8fe612970f23e447f2e717cfa51665be06b8d7315ba60556e010f6bca510dd; threads 16; parallel slots 4; ctx/slot 512; gpu layers 0"
    },
    "required_host_identity": {
      "python": "3.12.13",
      "torch_version": "2.10.0+rocm7.13.0a20260513",
      "transformers_version": "5.13.0",
      "llama_server_identities": {
        "/run/media/popov/d/DEV/llamacpp/llama.cpp/build/bin/llama-server": {
          "sha256": "fd8fe612970f23e447f2e717cfa51665be06b8d7315ba60556e010f6bca510dd",
          "version": "version: 9991 (e920c523) | built with GNU 15.2.1 for Linux x86_64"
        }
      }
    }
  },
  "stop_condition": "Stop the native llama.cpp/GGUF track when, on the same machine and device as the Transformers/safetensors reference and under this plan, no performance-fit GGUF recipe delivers either a meaningful speed benefit (>=25% higher single-request decode tokens/sec without a >25% worse TTFT, or >=25% higher aggregate throughput under concurrency) or a meaningful fit benefit (>=25% lower peak resident memory), or when the near-lossless quality lane fails, which indicates a broken runtime rather than a quantization trade-off.",
  "notes": "Quantized performance-fit output drift is reported as advisory only. It is not numerical-equivalence evidence. DGR-014 consumes this immutable v1 contract. Non-synthetic evidence must be Ed25519-signed by the pinned key and match the exact locked config, artifacts, runtimes, backends, and host runtime identity."
}