{
  "schema_version": 1,
  "evidence_id": "CUDA-COUNT-CODECS-20260908",
  "date": "2026-09-08",
  "qualification": "prototype diagnostics; no public-API, full-resident-series or displayed-FPS signoff",
  "device": {
    "backend": "CUDA",
    "model": "NVIDIA RTX PRO 6000 Blackwell Max-Q Workstation Edition",
    "cuda_runtime": 13000,
    "cuda_driver_api": 13000,
    "physical_device_index": 1
  },
  "provenance": {
    "research_archive_revision": "3106c18",
    "prototype_backend_revision": "54511fe420ea347d6d6e266af85fe9c5237a1df4",
    "code_and_evidence_sha256": {
      "code/baseline.cu": "54ba427419f21c4dc46c04325f79066044511de2db3429170bc8942217b796ca",
      "code/candidates.cu": "65aaefe36dc56d59172da9c4f2c5f3a2fb50cc88a1a8b15d16afd19470a7b19c",
      "code/driver.py": "0a31dc8da480efb45b5d761b2dbb1b67c2cffad3ce1205480c1282561580d8f8",
      "code/gpu_input.py": "fba9c6ad4f7a0753a4b03c7cceedd0e09853d62fb56edcb2a3e45ad593f1a16f",
      "evidence/gpu-input-full.jsonl": "38f9f9821a4cf357a9570e56592d51a2485ccf9ecb81c975c7e052db8d4a6e59",
      "evidence/statistics.json": "aa655fe92d417b9ef2d4900ff73cf4c7fd74bd494d65bada019b39defca6320c",
      "evidence/independent-review.md": "75c6441ab7029aac353885dea341db0d94c7d9ceae1082c2cd44f0b7a814093d",
      "evidence/report-review.md": "a476514e267a61c6941a1626c8db500c12dba8ddcbbb8c7c01bdbe0c5f4d0173"
    },
    "raw_evidence_availability": "Full source and unredacted run records retained separately; this portable summary does not distribute the fixture or executable prototype."
  },
  "input": {
    "acquisitions": 3,
    "native_shape_per_acquisition": [
      512,
      512,
      192,
      192
    ],
    "dtype": "uint16",
    "logical_bytes": 57982058496,
    "counts": 28991029248,
    "crop": null,
    "scan_bin": 1,
    "detector_bin": 1,
    "block_scans": 512,
    "blocks": 1536,
    "sources": [
      {
        "label": "A",
        "source_identity_sha256": "73d395ab22711a5ae1b54f5fcca444435ea36a27f46860bbb01a4254bc377e85",
        "processed_counts": 9663676416,
        "complete_acquisition": true
      },
      {
        "label": "B",
        "source_identity_sha256": "722759f12c911d3753b3dd23ee0fa680307cc1b977971c6add07372e110230eb",
        "processed_counts": 9663676416,
        "complete_acquisition": true
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      {
        "label": "C",
        "source_identity_sha256": "b6a81330859124ce38bc62be2ac491843f7f23dc29798c2df981acfe0dad2fe1",
        "processed_counts": 9663676416,
        "complete_acquisition": true
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    ]
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  "protocol": {
    "source_cache_state": "OS page cache uncontrolled; no cold-source claim",
    "process_state": "Kernel construction and adversarial warmup precede real-source timings; fixed arenas reused",
    "execution_order": "Four codec arms run sequentially per block; arm order rotates by block",
    "scientific_execution": "CUDA encoding, empirical histograms/model fit, inverse, index construction, mask planning, detector reductions and count comparisons",
    "host_roles": [
      "Compressed H5 byte IO and chunk-header processing",
      "Static table configuration and orchestration",
      "Evidence aggregation"
    ],
    "input_decode": "CUDA LZ4 and bitshuffle to native uint16; no dense whole-acquisition staging",
    "timing": "Individually synchronized CUDA events and host call wall; encode-stage sum omits histogram reset/scalar metadata handoff captured by encode wall",
    "query_scope": "Each query computes512 scan outputs using prebuilt mask/plan; all12 poses reused on fresh source blocks; not full-image or all-acquisition query latency",
    "large_adf_center_row_col": [
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      95.5
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    "large_adf_inner_radius": 40.0,
    "large_adf_outer_radius": 80.0,
    "query_masks": [
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        28.0
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        300.0
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        17.5
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      [
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        1.0
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    "query_accumulation_dtype": "uint32",
    "mask_semantics": "float64 inclusive annuli; original detector-validity exclusions; all stored counts preserved"
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    "h5_io_pool_reserved_peak_bytes": 150196736,
    "combined_pool_reserved_peak_bytes": 308161024,
    "memory_kind": "Measured allocator reservation high-water; shared arenas cover all four arms sequentially",
    "includes": [
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    "excludes": [
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      "Pinned host memory and process RSS",
      "Previously resident unrelated/source allocations",
      "Accumulation of a complete candidate resident series"
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    "per_codec_peak_difference": "not measured; shared fixed-capacity arenas mask codec-specific allocation differences",
    "full_load_peak_bytes": null,
    "process_rss_peak_bytes": null,
    "calculated_layout_scope": "Logical sum of used source/index/directory/model sizes over three acquisitions; never all simultaneously resident in this probe",
    "active_byte_model_contexts_per_block": 5,
    "allocated_byte_model_contexts": 17,
    "active_byte_model_bytes_per_block": 92160,
    "allocated_byte_model_bytes": 313344,
    "full_context_capacity_layout_scope": "Counterfactual resident layout retaining all17byte contexts per block; not measured full residency or peak",
    "full_context_capacity_extra_bytes": 339738624
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