{
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        "description": "Canonical release: the optical configuration is honestly unknown; lens, body serial, filter stack, and hot-mirror / IR-cut filter state are not documented per leaf in the inspected source.",
        "evidence_source_ids": [
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      "scientific_notes": "Canonical release: native grid and native R/G/B samples are preserved verbatim; sparse cells (wavelengths absent in the upstream CSV / JSON) are preserved as null; the parser never invents a value.",
      "source_author": "Jun Jiang",
      "source_id": "src-jiang-wacv2013-original",
      "source_uri": "https://www.gujinwei.org/research/camspec/db.html",
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      "validation_reason": "Source catalog entry recorded as 'measured' by the private intake; the canonical contract does not assert a per-record validation pass.",
      "validation_status": "unverified",
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    "source": {
      "authors": [
        "Jun Jiang",
        "Dengyu Liu",
        "Jinwei Gu",
        "Sabine Süsstrunk"
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      "citation_text": "Jiang et al. WACV 2013 camera spectral sensitivity database",
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      "known_limitations": [
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        "permission_status is 'unknown' on the canonical License record (no independent operational clearance granted)."
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      "license_id": "lic-src-jiang-wacv2013-original",
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      "repository": "https://www.gujinwei.org/research/camspec/db.html",
      "retrieved_date": "2026-09-29",
      "rights_notes": "Operational redistribution permission is unknown; retain source terms.",
      "schema_version": "0.1.0-draft",
      "source_id": "src-jiang-wacv2013-original",
      "title": "Jiang et al. WACV 2013 camera spectral sensitivity database",
      "url": "https://www.gujinwei.org/research/camspec/db.html",
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      "year": 2013
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      "license_url": "https://creativecommons.org/licenses/by-nc-sa/4.0/",
      "notes": "Canonical release: observed upstream license text is preserved verbatim on license_name/license_url when available; the operational permission_status is the literal 'unknown' because the owner-updated policy (2026-09-23) revoked the prior bespoke grants. Downstream redistribution requires a fresh per-source review and a new authorization ID.",
      "permission_status": "unknown",
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}