{
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  "backendObservation": {
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    "sourceObservedAt": "2026-10-03T02:53:14.200652+00:00",
    "readOnly": true,
    "method": "Offline derivation from existing models-v1.json/props-v1.json. Actual existing weight bytes were read for SHA256 only; no new HTTP or inference was performed.",
    "schema": {
      "paramsJSONPointer": "/default_generation_settings/params",
      "buildInfoJSONPointer": "/build_info",
      "modelPathJSONPointer": "/model_path",
      "modelEntriesJSONPointer": "/data"
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        "bytes": 2380
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        "bytes": 1181
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      "expectedSHA256Matched": true,
      "fileStableDuringHashing": true,
      "privateIdentityReference": "backend-observation/private/actual-model-identity-v2.json",
      "privateIdentityRecordSHA256": "428aa69e6c6c9cfd3c819ecbde256d4e7aa344d2e824550d16dc8bbdc7fa3af0",
      "physicalPathIncludedInSafeSummary": false
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        "dynatemp_range": 0.0,
        "dynatemp_exponent": 1.0,
        "top_k": 40,
        "top_p": 0.949999988079071,
        "min_p": 0.05000000074505806,
        "top_n_sigma": -1.0,
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        "xtc_threshold": 0.10000000149011612,
        "typical_p": 1.0,
        "repeat_last_n": 64,
        "repeat_penalty": 1.0,
        "presence_penalty": 0.0,
        "frequency_penalty": 0.0,
        "dry_multiplier": 0.0,
        "dry_base": 1.75,
        "dry_allowed_length": 2,
        "dry_penalty_last_n": 64,
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        "adaptive_target": -1.0,
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        "stream": false,
        "n_probs": 0,
        "min_keep": 0,
        "chat_format": "Content-only",
        "reasoning_format": "none",
        "reasoning_in_content": false,
        "generation_prompt": "",
        "samplers": [
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          "top_n_sigma",
          "top_k",
          "typ_p",
          "top_p",
          "min_p",
          "xtc",
          "temperature"
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        "speculative.types": "none",
        "timings_per_token": false,
        "post_sampling_probs": false,
        "backend_sampling": false,
        "lora": []
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      "n_ctx": 8192
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    "nativeRequestSampling": "SeConv native default negative sentinels omit temperature/top_p/top_k/repeat_penalty fields. These retained backend defaults are distinct from explicit native request settings; they do not establish an explicit temperature 0.8 or a deterministic fixed seed.",
    "seedMeaning": "The retained backend default seed value is 4294967295. This UINT32_MAX sentinel does not establish a fixed deterministic seed for the subsequent native calls; actual request/response evidence must be preserved.",
    "defaultValueRedactions": [],
    "inferenceCalls": 0,
    "newHttpRequests": 0,
    "modelLoads": 0,
    "configMutations": 0,
    "modelPhysicalPathNotPrinted": true
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  "backendObservationSha256": "5a9e907d6b12a132b9aedcdd5cbf87d9593cb79e367000e23ee08b9fc9f8af7d",
  "maximumProviderForwardsPerCase": 12,
  "caseTimeoutSeconds": 180,
  "expectedDecodedUserPrefix": "Translate from English to Chinese (Simplified). Keep all line breaks and punctuation as input. Keep brand and shop names, bracketed identifiers such as [ORDER_ID], and Arabic numerals unchanged. Preserve negation and statements that a value is unknown. Output only the translation, without comments:\n\n",
  "expectedDecodedUserPrefixSha256": "ec3dd09fec1210123031812642535b9f73fa74225618204d07db7074aa4e99b1",
  "nativeResources": [
    {
      "path": "[task-local-resource]/libHarfBuzzSharp.dll",
      "bytes": 1815904,
      "sha256": "cf97ae00945e6f5290967ba4ff3051f1cd47a0758b7d9a7159fb352b33655d43"
    },
    {
      "path": "[task-local-resource]/libse.xml",
      "bytes": 600359,
      "sha256": "f70c7ec1e79edc0deb417bea39c044997a253b5be4df1b6cdce46fdb444367cf"
    },
    {
      "path": "[task-local-resource]/libSkiaSharp.dll",
      "bytes": 11628896,
      "sha256": "7dec3ba900ab353491e6446f0083739924c6f8dd668832e2f09d38ebffdbbe1c"
    },
    {
      "path": "[task-local-resource]/LICENSE",
      "bytes": 1092,
      "sha256": "4ed40bfa9c91bf1a67fd78fa6fc4a5b4efbbed2ca2c80c0b048a82cf8e6de639"
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      "path": "[task-local-resource]/seconv.exe",
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      "sha256": "5aea82d6e7f703db720d6b82148f962d5474ef85fdedc24c11209dc62e9ac309"
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    {
      "path": "[task-local-resource]/primary.srt",
      "bytes": 284,
      "sha256": "f39fffac6c18e4a40eae67ef6c8e494a980b51913c56778fcaa2790be2c245da"
    },
    {
      "path": "[task-local-resource]/boundary.srt",
      "bytes": 311,
      "sha256": "c2442b50de0f9c99cb96852a1b2c06e7573f10971b4cff5bda7d2bcdc5416587"
    },
    {
      "path": "[task-local-resource]/translate.prompt",
      "bytes": 279,
      "sha256": "457bd840639fc5ffb8c7346483dde8df867b9324b05467a2342f78fa01ffeb74"
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  "cases": [
    {
      "caseId": "subtitle-edit-primary",
      "argv": [
        "[task-local-lab]\\distribution\\seconv.exe",
        "[task-local-lab]\\fixtures\\primary.srt",
        "subrip",
        "--translate-from:en",
        "--translate-to:zh-CN",
        "--translate-engine:llamacpp",
        "--translate-url:http://127.0.0.1:37441",
        "--translate-prompt:[task-local-lab]\\fixtures\\translate.prompt",
        "--output-folder:[task-local-lab]\\primary\\output",
        "--output-filename:primary.zh-CN.srt",
        "--json"
      ],
      "cwd": "[task-local-lab]/primary",
      "firstOutputPath": "[task-local-lab]/primary/output/primary.zh-CN.srt",
      "environmentNames": [
        "APPDATA",
        "COMSPEC",
        "DOTNET_BUNDLE_EXTRACT_BASE_DIR",
        "DOTNET_CLI_TELEMETRY_OPTOUT",
        "DOTNET_NOLOGO",
        "DOTNET_SKIP_FIRST_TIME_EXPERIENCE",
        "HOME",
        "LOCALAPPDATA",
        "PATH",
        "SystemDrive",
        "SystemRoot",
        "TEMP",
        "TMP",
        "USERPROFILE",
        "WINDIR",
        "XDG_CACHE_HOME",
        "XDG_CONFIG_HOME",
        "XDG_DATA_HOME"
      ]
    },
    {
      "caseId": "subtitle-edit-boundary",
      "argv": [
        "[task-local-lab]\\distribution\\seconv.exe",
        "[task-local-lab]\\fixtures\\boundary.srt",
        "subrip",
        "--translate-from:en",
        "--translate-to:zh-CN",
        "--translate-engine:llamacpp",
        "--translate-url:http://127.0.0.1:37441",
        "--translate-prompt:[task-local-lab]\\fixtures\\translate.prompt",
        "--output-folder:[task-local-lab]\\boundary\\output",
        "--output-filename:boundary.zh-CN.srt",
        "--json"
      ],
      "cwd": "[task-local-lab]/boundary",
      "firstOutputPath": "[task-local-lab]/boundary/output/boundary.zh-CN.srt",
      "environmentNames": [
        "APPDATA",
        "COMSPEC",
        "DOTNET_BUNDLE_EXTRACT_BASE_DIR",
        "DOTNET_CLI_TELEMETRY_OPTOUT",
        "DOTNET_NOLOGO",
        "DOTNET_SKIP_FIRST_TIME_EXPERIENCE",
        "HOME",
        "LOCALAPPDATA",
        "PATH",
        "SystemDrive",
        "SystemRoot",
        "TEMP",
        "TMP",
        "USERPROFILE",
        "WINDIR",
        "XDG_CACHE_HOME",
        "XDG_CONFIG_HOME",
        "XDG_DATA_HOME"
      ]
    }
  ],
  "sampling": "Native request omits model, stream and all sampling fields; existing observed backend defaults apply. Observed seed is not an actual sampled seed.",
  "maxTokensGuard": "Inclusive UTF16-length range compatible with normalized LF/CRLF. Exact original length is not uniquely recoverable from normalized wire body.",
  "inFlightResponseTimeoutSeconds": 210,
  "lateResponses": "Preserve in-flight replies as evidence; runner deadline stays 180 seconds and no late reply supplies timely success.",
  "isolationLimits": "Process-private environment/config/temp; no global backend changes. Not network isolation or full packet capture; query processes had conhost.exe children."
}
