{
  "schema_version": "camera-spectra-application-export-1",
  "profile_id": "prf-ie2024-canon-eos-20d-e-occ2",
  "profile_revision": 1,
  "exports": {
    "xspd": "/application-data/prf-ie2024-canon-eos-20d-e-occ2-r1.xspd",
    "siril": null,
    "metadata": "/application-data/prf-ie2024-canon-eos-20d-e-occ2-r1.metadata.json",
    "xspd_reason": null,
    "siril_reason": "The source does not establish a sensor-only response. A Siril sensor export would misrepresent its physical scope; use CSV or source JSON.",
    "siril_estimated": "/application-data/prf-ie2024-canon-eos-20d-e-occ2-r1.estimated.siril.json",
    "siril_estimated_alternative": "/application-data/prf-ie2024-canon-eos-20d-e-occ2-r1.alternative-estimate.siril.json",
    "siril_estimated_reason": null,
    "siril_estimated_note": "Estimated relative photon response. Assumes the source values describe energy response. Source optics remain unseparated; calibration accuracy is unverified.",
    "notes": [
      "XSPD contains the longest uninterrupted native range of each channel. Gaps and omitted samples remain in CSV and source JSON."
    ]
  },
  "siril_assessment": null,
  "siril_estimate": {
    "primary": {
      "channels": [
        {
          "channel": "red",
          "wavelengths": [
            380,
            385,
            390,
            395,
            400,
            405,
            410,
            415,
            420,
            425,
            430,
            435,
            440,
            445,
            450,
            455,
            460,
            465,
            470,
            475,
            480,
            485,
            490,
            495,
            500,
            505,
            510,
            515,
            520,
            525,
            530,
            535,
            540,
            545,
            550,
            555,
            560,
            565,
            570,
            575,
            580,
            585,
            590,
            595,
            600,
            605,
            610,
            615,
            620,
            625,
            630,
            635,
            640,
            645,
            650,
            655,
            660,
            665,
            670,
            675,
            680,
            685,
            690,
            695,
            700,
            705,
            710,
            715,
            720,
            725,
            730,
            735,
            740,
            745,
            750,
            755
          ],
          "values": [
            0.01790645093786506,
            0.01582091157951158,
            0.013788847589321014,
            0.014358565663659145,
            0.01491404065433184,
            0.012121973554012032,
            0.008574713124296094,
            0.015597746682116834,
            0.0220184423073869,
            0.026568048463743457,
            0.031011849703154994,
            0.027146942206976273,
            0.017961009405484882,
            0.012709966916990178,
            0.010457296647248548,
            0.011161713674829007,
            0.01153253528504595,
            0.010635943997408638,
            0.009758429120146586,
            0.010291007932471266,
            0.01081249124303336,
            0.01210780619250395,
            0.013894404716631389,
            0.01673285775638919,
            0.022739995083118907,
            0.0330185548900391,
            0.043095574205210284,
            0.06321255793178214,
            0.08468405540599004,
            0.10833376381651257,
            0.13153725121415205,
            0.13619837507886307,
            0.14077318183496831,
            0.12118783123817448,
            0.1275836191655033,
            0.15079362428282228,
            0.17358916502304628,
            0.2290509936497825,
            0.2835398077392076,
            0.35418157200724526,
            0.42162501397371804,
            0.4632535732077003,
            0.5041765636411064,
            0.5170921625191358,
            0.5230195146536631,
            0.49570200603698994,
            0.46883232543042597,
            0.44025207057293475,
            0.40988172632673225,
            0.37670008312349657,
            0.34459184443988117,
            0.31515887504040263,
            0.2861857957054116,
            0.2593420922582415,
            0.23332818302274455,
            0.19866502540298506,
            0.1663035584776174,
            0.13707343146154669,
            0.10722987338331703,
            0.07366073759051311,
            0.04298760926956562,
            0.022301497339376704,
            0.011324728241078085,
            0.00673379791347884,
            0.002208452380163579,
            0.0018895562818921237,
            0.001627557095240362,
            0.0015773779424526507,
            0.0015077541506484592,
            0.0013590794480259514,
            0.001234488685230259,
            0.0011991820933855539,
            0.0011917416814628517,
            0.001293221906917581,
            0.0013933490626995804,
            0.0013905585846622566
          ]
        },
        {
          "channel": "green",
          "wavelengths": [
            380,
            385,
            390,
            395,
            400,
            405,
            410,
            415,
            420,
            425,
            430,
            435,
            440,
            445,
            450,
            455,
            460,
            465,
            470,
            475,
            480,
            485,
            490,
            495,
            500,
            505,
            510,
            515,
            520,
            525,
            530,
            535,
            540,
            545,
            550,
            555,
            560,
            565,
            570,
            575,
            580,
            585,
            590,
            595,
            600,
            605,
            610,
            615,
            620,
            625,
            630,
            635,
            640,
            645,
            650,
            655,
            660,
            665,
            670,
            675,
            680,
            685,
            690,
            695,
            700,
            705,
            710,
            715,
            720,
            725,
            730,
            735,
            740,
            745,
            750,
            755
          ],
          "values": [
            0.02377385617855578,
            0.021275977445926457,
            0.018842146885928654,
            0.024315868285324203,
            0.029652746781541856,
            0.020690753011262546,
            0.008448762613822294,
            0.01619182559638391,
            0.025773014838542357,
            0.04312352780972477,
            0.060070540479251776,
            0.0767227948368916,
            0.09305908934359584,
            0.11420031131510511,
            0.13299919855048334,
            0.14671010837977053,
            0.16406506665713047,
            0.1966456938813664,
            0.22853311638322024,
            0.30319942267900174,
            0.37631018103679365,
            0.45002494090882555,
            0.5236285810157236,
            0.6180432071007929,
            0.7121384490024646,
            0.7985043363790568,
            0.8831767748801808,
            0.9572894487657525,
            1,
            0.9973599394172973,
            0.9947696913978962,
            0.9797563575843888,
            0.9650210484711316,
            0.9036893852208507,
            0.8475948574094575,
            0.7952342946525545,
            0.7438087419448819,
            0.679246715605526,
            0.6158173564874269,
            0.536651962690619,
            0.4562200880281356,
            0.38327877912727054,
            0.31157376368696726,
            0.24284466244412634,
            0.17570005398654887,
            0.1324392829099624,
            0.0898877048018446,
            0.06330559157217536,
            0.0486093377287931,
            0.03952171673451059,
            0.03144223922060957,
            0.026918370460491,
            0.022465187067369916,
            0.019208754363095357,
            0.01628217928448009,
            0.014461907292056906,
            0.013105173009126968,
            0.01241786055515504,
            0.01133023151767054,
            0.008628580383576126,
            0.006033232794886864,
            0.0037401233474354516,
            0.0025474948625946263,
            0.002078406109780666,
            0.0016160186248640482,
            0.0014955588449898501,
            0.001393796851989966,
            0.0013609874486774404,
            0.0013456273130789548,
            0.001397984288306324,
            0.001432007481540342,
            0.0013955809555620665,
            0.0013933967488040013,
            0.0015253359520790704,
            0.0016555159659771383,
            0.0015675153441353474
          ]
        },
        {
          "channel": "blue",
          "wavelengths": [
            380,
            385,
            390,
            395,
            400,
            405,
            410,
            415,
            420,
            425,
            430,
            435,
            440,
            445,
            450,
            455,
            460,
            465,
            470,
            475,
            480,
            485,
            490,
            495,
            500,
            505,
            510,
            515,
            520,
            525,
            530,
            535,
            540,
            545,
            550,
            555,
            560,
            565,
            570,
            575,
            580,
            585,
            590,
            595,
            600,
            605,
            610,
            615,
            620,
            625,
            630,
            635,
            640,
            645,
            650,
            655,
            660,
            665,
            670,
            675,
            680,
            685,
            690,
            695,
            700,
            705,
            710,
            715,
            720,
            725,
            730,
            735,
            740,
            745,
            750,
            755
          ],
          "values": [
            0.015668908340075772,
            0.01574045509004517,
            0.01581016730796407,
            0.019543914351153352,
            0.02318431785006989,
            0.020092832530587343,
            0.015436498817498225,
            0.11964997864776825,
            0.23961409110367854,
            0.4288251707075788,
            0.613635992646272,
            0.7348031761175755,
            0.8140697801183837,
            0.8709517354463345,
            0.9123075200574206,
            0.9391527439155873,
            0.9607868793896229,
            0.963644810617439,
            0.966441934910031,
            0.9407521037559354,
            0.9155974775273894,
            0.8491807307192115,
            0.7565498022222114,
            0.6479388004526436,
            0.543142099651277,
            0.44942103217713225,
            0.35753763279605455,
            0.28333595538356426,
            0.2151292003271156,
            0.15500831556814093,
            0.09602178702589637,
            0.07601147501016275,
            0.05637172432805383,
            0.04120981064597139,
            0.030328403796981925,
            0.02228889568403302,
            0.014392950215958203,
            0.011905557708057225,
            0.009461803757703271,
            0.007968599869108533,
            0.006790399846503244,
            0.005886959004227136,
            0.0049988307185997735,
            0.004172591942286787,
            0.0033717665867661075,
            0.0029307235422820857,
            0.0024969106252112545,
            0.0021685805745819673,
            0.0019515739189046968,
            0.001900479562282746,
            0.0018705450496797704,
            0.001921836411898468,
            0.001972326346582498,
            0.0022207267369685145,
            0.0025145967715608348,
            0.0026783553462785426,
            0.0026762090852569527,
            0.0024308027151942815,
            0.0021649017001080894,
            0.0018070258720437203,
            0.0014560234500826136,
            0.0011165404644226634,
            0.001055763550983835,
            0.0011770719465074686,
            0.0012966473649521932,
            0.0012354517277798364,
            0.0012101064805164349,
            0.0013240906366600213,
            0.0014268930555843163,
            0.0014901475858142086,
            0.0015243125986312777,
            0.0014458885431354116,
            0.0013969085855898265,
            0.001461361335813977,
            0.0015249547863321977,
            0.0016132572209118698
          ]
        }
      ],
      "interpretation": "energy_response",
      "basis": "The source quantity is not established; energy response is the explicit primary assumption, with a photon-response alternative for sensitivity comparison. Numeric values and profile naming cannot prove source units or optical scope.",
      "metadata": {
        "status": "estimated",
        "original_response_unit": "unknown",
        "original_response_scale": "unknown",
        "original_response_scope": "unknown",
        "source_attribution": "Image Engineering GmbH & Co. KG; Image Engineering spectral sensitivities workbook (April 2024); src-ie-202404-private; Image Engineering GmbH & Co. KG, Spectral sensitivities workbook (April 2024).; https://image-engineering.de/",
        "source_positive_peak": 1,
        "input_scale_hint": "normalized_or_fractional",
        "normalization": "one shared positive maximum across all channels",
        "normalization_divisor": 0.0018967128463461538,
        "method_version": "camera-spectra-siril-estimate-v1",
        "uncertainty": "unknown",
        "effective_camera_detection_model": true,
        "optical_transmission_separated": false,
        "interchannel_scale_comparability": "unknown; channel ratios inherit original possibly incomparable scales",
        "quantity_evidence_uri": null,
        "retained_channel_intervals_nm": [
          {
            "channel": "red",
            "minimum": 380,
            "maximum": 755
          },
          {
            "channel": "green",
            "minimum": 380,
            "maximum": 755
          },
          {
            "channel": "blue",
            "minimum": 380,
            "maximum": 755
          }
        ],
        "repairs": {
          "conflicting_duplicate_groups_merged": 0,
          "identical_duplicate_samples_removed": 0,
          "negative_samples_floored": 0,
          "negative_magnitude_total": 0,
          "bounded_nulls_interpolated": 0,
          "trimmed_null_samples": 177,
          "documented_gap_samples_omitted": 0,
          "partial_channels": [
            "red",
            "green",
            "blue"
          ]
        }
      }
    },
    "alternative": {
      "channels": [
        {
          "channel": "red",
          "wavelengths": [
            380,
            385,
            390,
            395,
            400,
            405,
            410,
            415,
            420,
            425,
            430,
            435,
            440,
            445,
            450,
            455,
            460,
            465,
            470,
            475,
            480,
            485,
            490,
            495,
            500,
            505,
            510,
            515,
            520,
            525,
            530,
            535,
            540,
            545,
            550,
            555,
            560,
            565,
            570,
            575,
            580,
            585,
            590,
            595,
            600,
            605,
            610,
            615,
            620,
            625,
            630,
            635,
            640,
            645,
            650,
            655,
            660,
            665,
            670,
            675,
            680,
            685,
            690,
            695,
            700,
            705,
            710,
            715,
            720,
            725,
            730,
            735,
            740,
            745,
            750,
            755
          ],
          "values": [
            0.0129060903,
            0.0115529746,
            0.0101998589,
            0.01075746,
            0.011315061,
            0.0093117207,
            0.0066681451,
            0.0122775453,
            0.0175403182,
            0.0214165825,
            0.0252928467,
            0.02239813,
            0.014989426,
            0.0107276851,
            0.00892552,
            0.0096326074,
            0.0100619976,
            0.0093805992,
            0.0086992008,
            0.0092715663,
            0.0098439317,
            0.0111380403,
            0.012913311,
            0.015710026,
            0.0215656204,
            0.0316264922,
            0.0416873639,
            0.0617464764,
            0.0835230946,
            0.1078759718,
            0.1322288489,
            0.1382061261,
            0.1441834033,
            0.1252728914,
            0.1330942192,
            0.1587367734,
            0.1843793276,
            0.2454608386,
            0.3065423496,
            0.3862739241,
            0.4638269166,
            0.514015517,
            0.5642041174,
            0.5835613317,
            0.5952106994,
            0.5688236395,
            0.5424365796,
            0.5135445311,
            0.4820053202,
            0.4465574293,
            0.4117628202,
            0.3795813382,
            0.3473998561,
            0.3172738733,
            0.2876617654,
            0.2468108813,
            0.2081838632,
            0.172892644,
            0.1362674665,
            0.0943064554,
            0.0554439025,
            0.0289751825,
            0.0148210327,
            0.0088765963,
            0.00293216,
            0.0025266817,
            0.002191776,
            0.0021391606,
            0.0020590392,
            0.001868893,
            0.0017092735,
            0.0016717605,
            0.0016726899,
            0.0018273886,
            0.0019820873,
            0.0019913052
          ]
        },
        {
          "channel": "green",
          "wavelengths": [
            380,
            385,
            390,
            395,
            400,
            405,
            410,
            415,
            420,
            425,
            430,
            435,
            440,
            445,
            450,
            455,
            460,
            465,
            470,
            475,
            480,
            485,
            490,
            495,
            500,
            505,
            510,
            515,
            520,
            525,
            530,
            535,
            540,
            545,
            550,
            555,
            560,
            565,
            570,
            575,
            580,
            585,
            590,
            595,
            600,
            605,
            610,
            615,
            620,
            625,
            630,
            635,
            640,
            645,
            650,
            655,
            660,
            665,
            670,
            675,
            680,
            685,
            690,
            695,
            700,
            705,
            710,
            715,
            720,
            725,
            730,
            735,
            740,
            745,
            750,
            755
          ],
          "values": [
            0.0171350278,
            0.0155364516,
            0.0139378754,
            0.0182174868,
            0.0224970983,
            0.0158939889,
            0.0065701994,
            0.0127451661,
            0.0205312835,
            0.0347620034,
            0.0489927233,
            0.0633016831,
            0.0776628029,
            0.0963893129,
            0.1135175798,
            0.126611461,
            0.143144787,
            0.1734358924,
            0.2037269979,
            0.273164064,
            0.3426011302,
            0.413980522,
            0.4866547976,
            0.5802639928,
            0.6753610723,
            0.7648393835,
            0.8543176946,
            0.9350871455,
            0.9862906801,
            0.99314534,
            1,
            0.9941993113,
            0.9883986226,
            0.9341514,
            0.88420423,
            0.8371237619,
            0.7900432938,
            0.7279098238,
            0.6657763539,
            0.5852779362,
            0.501884731,
            0.4252773237,
            0.3486699165,
            0.2740609216,
            0.1999515297,
            0.15197557,
            0.1039996103,
            0.0738446052,
            0.0571627323,
            0.0468508424,
            0.0375712464,
            0.0324208261,
            0.0272704057,
            0.0234996018,
            0.0200737021,
            0.0179667059,
            0.016405455,
            0.0156628219,
            0.0143984311,
            0.011047009,
            0.0077814509,
            0.0048593489,
            0.0033339877,
            0.002739787,
            0.0021455863,
            0.0019998352,
            0.001876979,
            0.0018457027,
            0.0018376334,
            0.0019223917,
            0.0019827581,
            0.001945557,
            0.0019557264,
            0.0021553776,
            0.0023550288,
            0.0022447105
          ]
        },
        {
          "channel": "blue",
          "wavelengths": [
            380,
            385,
            390,
            395,
            400,
            405,
            410,
            415,
            420,
            425,
            430,
            435,
            440,
            445,
            450,
            455,
            460,
            465,
            470,
            475,
            480,
            485,
            490,
            495,
            500,
            505,
            510,
            515,
            520,
            525,
            530,
            535,
            540,
            545,
            550,
            555,
            560,
            565,
            570,
            575,
            580,
            585,
            590,
            595,
            600,
            605,
            610,
            615,
            620,
            625,
            630,
            635,
            640,
            645,
            650,
            655,
            660,
            665,
            670,
            675,
            680,
            685,
            690,
            695,
            700,
            705,
            710,
            715,
            720,
            725,
            730,
            735,
            740,
            745,
            750,
            755
          ],
          "values": [
            0.0112933795,
            0.0114942225,
            0.0116950655,
            0.0146423314,
            0.0175895974,
            0.0154346851,
            0.0120042283,
            0.0941807854,
            0.1908812324,
            0.3456772393,
            0.5004732462,
            0.6062641213,
            0.6793849083,
            0.7351156786,
            0.7786734269,
            0.8104928987,
            0.8382749357,
            0.8499072336,
            0.8615395316,
            0.8475598852,
            0.8335802389,
            0.7811662204,
            0.7031292871,
            0.608332154,
            0.5150922989,
            0.4304734358,
            0.3458545728,
            0.2767645774,
            0.2121799253,
            0.1543532883,
            0.0965266512,
            0.0771319885,
            0.0577373258,
            0.0425989316,
            0.0316383502,
            0.0234629773,
            0.0152876044,
            0.0127585047,
            0.0102294051,
            0.0086906338,
            0.0074700744,
            0.0065320344,
            0.0055939944,
            0.0047089542,
            0.0038371638,
            0.0033630383,
            0.0028889127,
            0.0025296024,
            0.0022949767,
            0.002252915,
            0.0022351687,
            0.0023146841,
            0.0023941995,
            0.0027167922,
            0.0031001542,
            0.0033274465,
            0.0033501601,
            0.0030660056,
            0.0027511519,
            0.0023135012,
            0.0018779277,
            0.0014506633,
            0.0013817114,
            0.0015516344,
            0.0017215574,
            0.0016520245,
            0.0016296094,
            0.0017956651,
            0.0019486126,
            0.002049127,
            0.0021105638,
            0.00201569,
            0.0019606555,
            0.0020649782,
            0.002169301,
            0.0023102137
          ]
        }
      ],
      "interpretation": "photon_response",
      "basis": "Alternative photon-response source-quantity assumption applied to the same numeric samples; this is a sensitivity comparison, not a probability or claim that the source measured this quantity.",
      "metadata": {
        "status": "estimated",
        "original_response_unit": "unknown",
        "original_response_scale": "unknown",
        "original_response_scope": "unknown",
        "source_attribution": "Image Engineering GmbH & Co. KG; Image Engineering spectral sensitivities workbook (April 2024); src-ie-202404-private; Image Engineering GmbH & Co. KG, Spectral sensitivities workbook (April 2024).; https://image-engineering.de/",
        "source_positive_peak": 1,
        "input_scale_hint": "normalized_or_fractional",
        "normalization": "one shared positive maximum across all channels",
        "normalization_divisor": 1,
        "method_version": "camera-spectra-siril-estimate-v1",
        "uncertainty": "unknown",
        "effective_camera_detection_model": true,
        "optical_transmission_separated": false,
        "interchannel_scale_comparability": "unknown; channel ratios inherit original possibly incomparable scales",
        "quantity_evidence_uri": null,
        "retained_channel_intervals_nm": [
          {
            "channel": "red",
            "minimum": 380,
            "maximum": 755
          },
          {
            "channel": "green",
            "minimum": 380,
            "maximum": 755
          },
          {
            "channel": "blue",
            "minimum": 380,
            "maximum": 755
          }
        ],
        "repairs": {
          "conflicting_duplicate_groups_merged": 0,
          "identical_duplicate_samples_removed": 0,
          "negative_samples_floored": 0,
          "negative_magnitude_total": 0,
          "bounded_nulls_interpolated": 0,
          "trimmed_null_samples": 177,
          "documented_gap_samples_omitted": 0,
          "partial_channels": [
            "red",
            "green",
            "blue"
          ]
        }
      }
    },
    "diagnostics": {
      "source_family_prior": "none",
      "primary_basis": "energy_response_assumption",
      "interpretation_difference_rms": 0.03520166502396464,
      "comparison_sample_count": 228,
      "comparison_limitations": "sampled-assumption difference only; not uncertainty bounds and excludes optics, gain, and measurement-error uncertainty",
      "observed_channel_diagnostics": [
        {
          "channel": "red",
          "positive_peak_wavelength_nm": 600,
          "positive_response_centroid_nm": 598.5567070233514,
          "observed_nir_to_visible_mean_ratio": null,
          "note": "descriptive numeric summary only; does not identify optical filtering or physical units"
        },
        {
          "channel": "green",
          "positive_peak_wavelength_nm": 530,
          "positive_response_centroid_nm": 533.258553088853,
          "observed_nir_to_visible_mean_ratio": null,
          "note": "descriptive numeric summary only; does not identify optical filtering or physical units"
        },
        {
          "channel": "blue",
          "positive_peak_wavelength_nm": 470,
          "positive_response_centroid_nm": 471.2287252989361,
          "observed_nir_to_visible_mean_ratio": null,
          "note": "descriptive numeric summary only; does not identify optical filtering or physical units"
        }
      ]
    }
  },
  "transformations": {
    "xspd": "Longest uninterrupted native run per channel; no interpolation, padding, rescaling or default replacement. Repeated identical wavelength/value pairs removed.",
    "siril": "Source scales and channel grids retained. Pairs sorted by wavelength and repeated identical wavelength/value pairs removed.",
    "siril_estimated": "Derived relative photon-response model with documented source-quantity assumptions, numeric repairs and shared RGB normalization. Original samples and unknown source metadata are preserved separately."
  },
  "compatibility": "Format validation does not establish calibration accuracy or a complete optical response.",
  "original": {
    "profile": {
      "attribution_required": null,
      "blue": [
        0.0112933795,
        0.0114942225,
        0.0116950655,
        0.0146423314,
        0.0175895974,
        0.0154346851,
        0.0120042283,
        0.0941807854,
        0.1908812324,
        0.3456772393,
        0.5004732462,
        0.6062641213,
        0.6793849083,
        0.7351156786,
        0.7786734269,
        0.8104928987,
        0.8382749357,
        0.8499072336,
        0.8615395316,
        0.8475598852,
        0.8335802389,
        0.7811662204,
        0.7031292871,
        0.608332154,
        0.5150922989,
        0.4304734358,
        0.3458545728,
        0.2767645774,
        0.2121799253,
        0.1543532883,
        0.0965266512,
        0.0771319885,
        0.0577373258,
        0.0425989316,
        0.0316383502,
        0.0234629773,
        0.0152876044,
        0.0127585047,
        0.0102294051,
        0.0086906338,
        0.0074700744,
        0.0065320344,
        0.0055939944,
        0.0047089542,
        0.0038371638,
        0.0033630383,
        0.0028889127,
        0.0025296024,
        0.0022949767,
        0.002252915,
        0.0022351687,
        0.0023146841,
        0.0023941995,
        0.0027167922,
        0.0031001542,
        0.0033274465,
        0.0033501601,
        0.0030660056,
        0.0027511519,
        0.0023135012,
        0.0018779277,
        0.0014506633,
        0.0013817114,
        0.0015516344,
        0.0017215574,
        0.0016520245,
        0.0016296094,
        0.0017956651,
        0.0019486126,
        0.002049127,
        0.0021105638,
        0.00201569,
        0.0019606555,
        0.0020649782,
        0.002169301,
        0.0023102137,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null
      ],
      "camera_id": "cam-ie2024-canon-eos-20d",
      "checksum": {
        "algorithm": "sha256",
        "covers": "canonical_profile_revision",
        "value": "ff28d2637c809a5a48ba494ee01d2b7439a340f44f7aad7857cec84845b063a8"
      },
      "citation": "Image Engineering GmbH & Co. KG, Spectral sensitivities workbook (April 2024).",
      "commercial_api_allowed": null,
      "confidence_grade": "unassessed",
      "confidence_reason": "Canonical release: no claim about the per-leaf measurement precision is asserted; the upstream 'as is' wording (where present) is preserved.",
      "created_at": "2026-09-23T00:00:00Z",
      "derivatives_allowed": null,
      "derived_from": [
        {
          "checksum": null,
          "id": "src-ie-202404-private",
          "kind": "source_artifact",
          "order": 0,
          "revision": "2024-04",
          "uri": "https://image-engineering.de/"
        }
      ],
      "documented_gaps": null,
      "estimation_method": null,
      "green": [
        0.0171350278,
        0.0155364516,
        0.0139378754,
        0.0182174868,
        0.0224970983,
        0.0158939889,
        0.0065701994,
        0.0127451661,
        0.0205312835,
        0.0347620034,
        0.0489927233,
        0.0633016831,
        0.0776628029,
        0.0963893129,
        0.1135175798,
        0.126611461,
        0.143144787,
        0.1734358924,
        0.2037269979,
        0.273164064,
        0.3426011302,
        0.413980522,
        0.4866547976,
        0.5802639928,
        0.6753610723,
        0.7648393835,
        0.8543176946,
        0.9350871455,
        0.9862906801,
        0.99314534,
        1,
        0.9941993113,
        0.9883986226,
        0.9341514,
        0.88420423,
        0.8371237619,
        0.7900432938,
        0.7279098238,
        0.6657763539,
        0.5852779362,
        0.501884731,
        0.4252773237,
        0.3486699165,
        0.2740609216,
        0.1999515297,
        0.15197557,
        0.1039996103,
        0.0738446052,
        0.0571627323,
        0.0468508424,
        0.0375712464,
        0.0324208261,
        0.0272704057,
        0.0234996018,
        0.0200737021,
        0.0179667059,
        0.016405455,
        0.0156628219,
        0.0143984311,
        0.011047009,
        0.0077814509,
        0.0048593489,
        0.0033339877,
        0.002739787,
        0.0021455863,
        0.0019998352,
        0.001876979,
        0.0018457027,
        0.0018376334,
        0.0019223917,
        0.0019827581,
        0.001945557,
        0.0019557264,
        0.0021553776,
        0.0023550288,
        0.0022447105,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null
      ],
      "interpolation_method": null,
      "license_id": "lic-src-ie-202404-private",
      "measurement_method": null,
      "normalization_method": "unknown",
      "optical_configuration": {
        "configuration_id": "cfg-prf-ie2024-canon-eos-20d-e-occ2",
        "configuration_type": "unknown",
        "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": [
          "src-ie-202404-private"
        ],
        "external_filters": null,
        "geometry": null,
        "internal_optical_stack": null,
        "lens": null,
        "modifier_or_vendor": null,
        "name": "unknown",
        "removed_components": null,
        "replacement_components": null
      },
      "original_normalization_method": "unknown",
      "original_wavelength_unit": "nm",
      "processing_notes": "source_column=E",
      "profile_id": "prf-ie2024-canon-eos-20d-e-occ2",
      "profile_revision": 1,
      "profile_type": "measured",
      "provenance_tier": "community_unverified",
      "quality_grade": "unassessed",
      "quality_reason": "Canonical release: no per-leaf scientific-quality assessment is asserted; the source-side claim is preserved verbatim.",
      "red": [
        0.0129060903,
        0.0115529746,
        0.0101998589,
        0.01075746,
        0.011315061,
        0.0093117207,
        0.0066681451,
        0.0122775453,
        0.0175403182,
        0.0214165825,
        0.0252928467,
        0.02239813,
        0.014989426,
        0.0107276851,
        0.00892552,
        0.0096326074,
        0.0100619976,
        0.0093805992,
        0.0086992008,
        0.0092715663,
        0.0098439317,
        0.0111380403,
        0.012913311,
        0.015710026,
        0.0215656204,
        0.0316264922,
        0.0416873639,
        0.0617464764,
        0.0835230946,
        0.1078759718,
        0.1322288489,
        0.1382061261,
        0.1441834033,
        0.1252728914,
        0.1330942192,
        0.1587367734,
        0.1843793276,
        0.2454608386,
        0.3065423496,
        0.3862739241,
        0.4638269166,
        0.514015517,
        0.5642041174,
        0.5835613317,
        0.5952106994,
        0.5688236395,
        0.5424365796,
        0.5135445311,
        0.4820053202,
        0.4465574293,
        0.4117628202,
        0.3795813382,
        0.3473998561,
        0.3172738733,
        0.2876617654,
        0.2468108813,
        0.2081838632,
        0.172892644,
        0.1362674665,
        0.0943064554,
        0.0554439025,
        0.0289751825,
        0.0148210327,
        0.0088765963,
        0.00293216,
        0.0025266817,
        0.002191776,
        0.0021391606,
        0.0020590392,
        0.001868893,
        0.0017092735,
        0.0016717605,
        0.0016726899,
        0.0018273886,
        0.0019820873,
        0.0019913052,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null,
        null
      ],
      "redistribution_allowed": null,
      "response_scale": "unknown",
      "response_scope": "unknown",
      "response_unit": "unknown",
      "retrieved_date": "2026-09-23",
      "rights_evidence_source_ids": [
        "src-ie-202404-private"
      ],
      "sample_count": 135,
      "sample_identifiers": null,
      "sampling_interval": 5,
      "schema_version": "0.1.0-draft",
      "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": "Image Engineering GmbH & Co. KG",
      "source_id": "src-ie-202404-private",
      "source_uri": "https://image-engineering.de/",
      "uncertainty": null,
      "updated_at": "2026-09-23T00:00:00Z",
      "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",
      "version_date": "2026-09-23",
      "wavelength_max": 1050,
      "wavelength_min": 380,
      "wavelength_unit": "nm",
      "wavelengths": [
        380,
        385,
        390,
        395,
        400,
        405,
        410,
        415,
        420,
        425,
        430,
        435,
        440,
        445,
        450,
        455,
        460,
        465,
        470,
        475,
        480,
        485,
        490,
        495,
        500,
        505,
        510,
        515,
        520,
        525,
        530,
        535,
        540,
        545,
        550,
        555,
        560,
        565,
        570,
        575,
        580,
        585,
        590,
        595,
        600,
        605,
        610,
        615,
        620,
        625,
        630,
        635,
        640,
        645,
        650,
        655,
        660,
        665,
        670,
        675,
        680,
        685,
        690,
        695,
        700,
        705,
        710,
        715,
        720,
        725,
        730,
        735,
        740,
        745,
        750,
        755,
        760,
        765,
        770,
        775,
        780,
        785,
        790,
        795,
        800,
        805,
        810,
        815,
        820,
        825,
        830,
        835,
        840,
        845,
        850,
        855,
        860,
        865,
        870,
        875,
        880,
        885,
        890,
        895,
        900,
        905,
        910,
        915,
        920,
        925,
        930,
        935,
        940,
        945,
        950,
        955,
        960,
        965,
        970,
        975,
        980,
        985,
        990,
        995,
        1000,
        1005,
        1010,
        1015,
        1020,
        1025,
        1030,
        1035,
        1040,
        1045,
        1050
      ]
    },
    "source": {
      "authors": [
        "Image Engineering GmbH & Co. KG"
      ],
      "citation_text": "Image Engineering GmbH & Co. KG, Spectral sensitivities workbook (April 2024).",
      "data_acquisition_method": "RGB columns in the owner-supplied workbook on its native 380-1050 nm, 5 nm grid; instrument, calibration, and lens are not identified.",
      "doi": null,
      "known_limitations": [
        "source_category=measured",
        "permission_status is 'unknown' on the canonical License record (no independent operational clearance granted)."
      ],
      "license_id": "lic-src-ie-202404-private",
      "measurement_method": null,
      "normalization_method": null,
      "organization": "Image Engineering GmbH & Co. KG",
      "original_wavelength_coverage": {
        "maximum": 1050,
        "minimum": 380,
        "unit": "nm"
      },
      "publication": null,
      "record_version": 1,
      "repository": "https://image-engineering.de/",
      "retrieved_date": "2026-09-23",
      "rights_notes": "The workbook was supplied by the project owner. The source license is unknown; no redistribution or downstream reuse grant is identified by the intake evidence.",
      "schema_version": "0.1.0-draft",
      "source_id": "src-ie-202404-private",
      "title": "Image Engineering spectral sensitivities workbook (April 2024)",
      "url": "https://image-engineering.de/",
      "version": "2024-04",
      "year": 2024
    },
    "license": {
      "attribution_required": null,
      "commercial_api_allowed": null,
      "commercial_use_allowed": null,
      "derivatives_allowed": null,
      "evidence_revision": "2024-04",
      "evidence_url": null,
      "license_id": "lic-src-ie-202404-private",
      "license_name": null,
      "license_url": null,
      "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",
      "record_version": 1,
      "redistribution_allowed": null,
      "reviewed_date": "2026-09-23",
      "rights_holder": "Image Engineering GmbH & Co. KG",
      "schema_version": "0.1.0-draft",
      "share_alike_required": null
    },
    "dataset_version": "recovered-2026-10-01-siril-source-review-v2"
  }
}