{
  "conclusion": {
    "conversion_corruption_observed_in_rocm_sample": false,
    "cpu_bf16_divergence_explained": false,
    "recommended_v2_design": "Predeclare a float32 quality oracle separately from the BF16 performance reference, with a larger prompt corpus and immutable thresholds.",
    "scope": "The ROCm diagnostic establishes only that the same BF16 GGUF artifact matched the float32 oracle for three GPU sequences; it does not explain the CPU BF16 divergence or prove global conversion correctness.",
    "v1_verdict_changed": false
  },
  "cpu_v1": {
    "candidate": "llama.cpp BF16 GGUF",
    "candidate_artifact_sha256": "e842fdc35d7f00fda95a54e1b51731ba1d196aea45065cc9f46925fdc1d6f862",
    "config_sha256": "00b2cce3e2f281bdf92fc5304ba5cac915a178ffccd3b9a25995ce39c00b90d3",
    "contract_verdict": "stop",
    "device": "cpu",
    "exact_match_rate": 0.3333,
    "mean_similarity": 0.9471,
    "plan_id": "dgr-001-controlled-whole-model-baseline-v1",
    "plan_sha256": "efe24690a9a7164bac6ab3fd0a6b22f078fc08aaefcfb96210ddf154e6050570",
    "quality_oracle": "Transformers BF16 safetensors",
    "report": "results.json",
    "report_sha256": "5d99a58806f39821c9206728047b8c5d605027d8a41b88639089b2418da890b5",
    "root_cause": "undetermined; no logit-tie claim is acceptance evidence",
    "run_id": "e4eedadf-22f6-4907-8990-985456961099"
  },
  "model_id": "Qwen/Qwen2.5-0.5B-Instruct",
  "model_revision": "7ae557604adf67be50417f59c2c2f167def9a775",
  "rocm_diagnostic": {
    "candidate": "llama.cpp BF16 GGUF",
    "candidate_artifact_sha256": "e842fdc35d7f00fda95a54e1b51731ba1d196aea45065cc9f46925fdc1d6f862",
    "config_sha256": "b0f0c846c818f1307d034cee1f81daa311efc20985c32a4cdbbbd8ffe4153892",
    "device": "cuda (ROCm)",
    "exact_match_rate": 1.0,
    "failures": 0,
    "mean_similarity": 1.0,
    "measured_backend_detail": "version: 9991 (e920c523) | built with GNU 15.2.1 for Linux x86_64; binary sha256 b6bb4da687dbde86e243ba006cef05919b7b97255cd7e2371e1d451220aca139; threads 16; parallel slots 4; ctx/slot 512; requested gpu layers 99; measured accelerator ROCm0: Radeon 8060S Graphics; measured offload 25/25 layers",
    "plan_id": "dgr-001-rocm-gpu-diagnostic-v1",
    "plan_sha256": "dae8e40963588f71f5d201fd163d39bd762e392544b5603d483e90d21abee2e8",
    "producer": "meshnet_node.recipe_drivers.run_configured_gpu_diagnostic/v1",
    "quality_oracle": "Transformers float32 safetensors",
    "report": "gpu-diagnostic-results.json",
    "report_sha256": "527b33d03627d57d60b30331e6b9119f579a828d6f6acb5c74ca25bab0af5f3d",
    "run_id": "31bf44e7-ccd4-4277-84ac-c775dee65411",
    "signer_fingerprint": "8baca8742d9b3ed0c3fc54929c23f75ec8c1c739900aaf5334780d598ffa84de",
    "v1_eligible": false
  },
  "schema_version": 2
}
