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        {
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      ],
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                "width": 48,
                "window": [
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                ]
              },
              "outcome_id": "case2_dense_r0_spectral_metric",
              "signed_error": {
                "above_window_pixels": 40,
                "alt": "Recovered minus assigned reference, case2_dense_r0_spectral_metric, bone fraction, coronal (y = 0 mm)",
                "below_window_pixels": 254,
                "file": "case2_dense_r0_spectral_metric/bone-coronal-error.png",
                "height": 48,
                "physical_height_mm": 192.0,
                "physical_width_mm": 148.875,
                "sha256": "4f474e16443cedac2db83030142f9402d13798bd902550693cd3579a6b55655e",
                "width": 48,
                "window": [
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              }
            },
            {
              "image": {
                "above_window_pixels": 0,
                "alt": "Spectral fixed metric, Broad sparse, bone fraction, coronal (y = 0 mm)",
                "below_window_pixels": 0,
                "file": "case2_sparse_r0_spectral_metric/bone-coronal.png",
                "height": 48,
                "physical_height_mm": 192.0,
                "physical_width_mm": 148.875,
                "sha256": "98482be9b41c7e6e3ca89fa58093dc37d168250b6376abb8d32d137c0ab3fd1e",
                "width": 48,
                "window": [
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                ]
              },
              "outcome_id": "case2_sparse_r0_spectral_metric",
              "signed_error": {
                "above_window_pixels": 69,
                "alt": "Recovered minus assigned reference, case2_sparse_r0_spectral_metric, bone fraction, coronal (y = 0 mm)",
                "below_window_pixels": 44,
                "file": "case2_sparse_r0_spectral_metric/bone-coronal-error.png",
                "height": 48,
                "physical_height_mm": 192.0,
                "physical_width_mm": 148.875,
                "sha256": "89d6421d4ca6ac5cee0833bb7518b8e50d6cd112e86fb83d1054aebef57a2235",
                "width": 48,
                "window": [
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              }
            },
            {
              "image": {
                "above_window_pixels": 0,
                "alt": "Spectral fixed metric, Limited angle, bone fraction, coronal (y = 0 mm)",
                "below_window_pixels": 0,
                "file": "case2_limited_r0_spectral_metric/bone-coronal.png",
                "height": 48,
                "physical_height_mm": 192.0,
                "physical_width_mm": 148.875,
                "sha256": "98af0479b2d39a6e90382e342423f857e0da9c9931fbc7eaec5fc3c786de56ad",
                "width": 48,
                "window": [
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                ]
              },
              "outcome_id": "case2_limited_r0_spectral_metric",
              "signed_error": {
                "above_window_pixels": 102,
                "alt": "Recovered minus assigned reference, case2_limited_r0_spectral_metric, bone fraction, coronal (y = 0 mm)",
                "below_window_pixels": 66,
                "file": "case2_limited_r0_spectral_metric/bone-coronal-error.png",
                "height": 48,
                "physical_height_mm": 192.0,
                "physical_width_mm": 148.875,
                "sha256": "a538c8594621cf5d8a01a65eeefac9fb075fb58ab901153295d1c1076aec9899",
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                "window": [
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            }
          ],
          "reference": {
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            "alt": "Assigned reference, bone fraction, coronal (y = 0 mm)",
            "below_window_pixels": 0,
            "file": "reference/spectral-bone-coronal.png",
            "height": 48,
            "physical_height_mm": 192.0,
            "physical_width_mm": 148.875,
            "sha256": "31fd2666590b8c03a5430e31e03d4ea3a055c26794def87ab40acda43d6d3438",
            "width": 48,
            "window": [
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            ]
          },
          "units": "fraction"
        },
        {
          "key": "bone-sagittal",
          "plane": "sagittal",
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          "quantity": "bone",
          "quantity_label": "Bone fraction",
          "recovered": [
            {
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                "alt": "Spectral fixed metric, Broad dense, bone fraction, sagittal (x = 0 mm)",
                "below_window_pixels": 0,
                "file": "case2_dense_r0_spectral_metric/bone-sagittal.png",
                "height": 48,
                "physical_height_mm": 192.0,
                "physical_width_mm": 148.875,
                "sha256": "18086442650c454f8db02e9dddb434139cf988b895e37c8574d557a0f89120af",
                "width": 48,
                "window": [
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              },
              "outcome_id": "case2_dense_r0_spectral_metric",
              "signed_error": {
                "above_window_pixels": 87,
                "alt": "Recovered minus assigned reference, case2_dense_r0_spectral_metric, bone fraction, sagittal (x = 0 mm)",
                "below_window_pixels": 335,
                "file": "case2_dense_r0_spectral_metric/bone-sagittal-error.png",
                "height": 48,
                "physical_height_mm": 192.0,
                "physical_width_mm": 148.875,
                "sha256": "1b161840c72d86c0b78415a0de8ee231e52fa6e5c189cadcbc67df274f48f056",
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              }
            },
            {
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                "alt": "Spectral fixed metric, Broad sparse, bone fraction, sagittal (x = 0 mm)",
                "below_window_pixels": 0,
                "file": "case2_sparse_r0_spectral_metric/bone-sagittal.png",
                "height": 48,
                "physical_height_mm": 192.0,
                "physical_width_mm": 148.875,
                "sha256": "6464b5a20cd3d140845ac3dad7072febbc7552e7c1bd7efd8daeacbb909ad8d1",
                "width": 48,
                "window": [
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                ]
              },
              "outcome_id": "case2_sparse_r0_spectral_metric",
              "signed_error": {
                "above_window_pixels": 128,
                "alt": "Recovered minus assigned reference, case2_sparse_r0_spectral_metric, bone fraction, sagittal (x = 0 mm)",
                "below_window_pixels": 104,
                "file": "case2_sparse_r0_spectral_metric/bone-sagittal-error.png",
                "height": 48,
                "physical_height_mm": 192.0,
                "physical_width_mm": 148.875,
                "sha256": "909744f9b08de32ebb2026eea1eec7721db2e22050c83af80392a589ee459eee",
                "width": 48,
                "window": [
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              }
            },
            {
              "image": {
                "above_window_pixels": 0,
                "alt": "Spectral fixed metric, Limited angle, bone fraction, sagittal (x = 0 mm)",
                "below_window_pixels": 0,
                "file": "case2_limited_r0_spectral_metric/bone-sagittal.png",
                "height": 48,
                "physical_height_mm": 192.0,
                "physical_width_mm": 148.875,
                "sha256": "d4df445a46a2b4683ebc0e58bf59530d167550f20e89145b41e54e3f177b6a21",
                "width": 48,
                "window": [
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                ]
              },
              "outcome_id": "case2_limited_r0_spectral_metric",
              "signed_error": {
                "above_window_pixels": 205,
                "alt": "Recovered minus assigned reference, case2_limited_r0_spectral_metric, bone fraction, sagittal (x = 0 mm)",
                "below_window_pixels": 177,
                "file": "case2_limited_r0_spectral_metric/bone-sagittal-error.png",
                "height": 48,
                "physical_height_mm": 192.0,
                "physical_width_mm": 148.875,
                "sha256": "793c7caa1a1ecb2896312074f5d2dde022f25a53253448df97a141303cd9e9e2",
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              }
            }
          ],
          "reference": {
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            "alt": "Assigned reference, bone fraction, sagittal (x = 0 mm)",
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            "file": "reference/spectral-bone-sagittal.png",
            "height": 48,
            "physical_height_mm": 192.0,
            "physical_width_mm": 148.875,
            "sha256": "6483b1230cf5d0e61b3bb9468b2f3fc1d2327f182f1276af1a4548ae347946bd",
            "width": 48,
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          },
          "units": "fraction"
        },
        {
          "key": "water-axial",
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          "plane_label": "Axial (z = 0 mm)",
          "quantity": "water",
          "quantity_label": "Water fraction",
          "recovered": [
            {
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                "alt": "Spectral fixed metric, Broad dense, water fraction, axial (z = 0 mm)",
                "below_window_pixels": 0,
                "file": "case2_dense_r0_spectral_metric/water-axial.png",
                "height": 48,
                "physical_height_mm": 148.875,
                "physical_width_mm": 148.875,
                "sha256": "883439c049c3d4de7710577cfa3291981e2e2ae4a3d0b244900fe5677a590092",
                "width": 48,
                "window": [
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                ]
              },
              "outcome_id": "case2_dense_r0_spectral_metric",
              "signed_error": {
                "above_window_pixels": 131,
                "alt": "Recovered minus assigned reference, case2_dense_r0_spectral_metric, water fraction, axial (z = 0 mm)",
                "below_window_pixels": 16,
                "file": "case2_dense_r0_spectral_metric/water-axial-error.png",
                "height": 48,
                "physical_height_mm": 148.875,
                "physical_width_mm": 148.875,
                "sha256": "45a6f8a33f2c228dcf9a21753d9100a3fe60c6f7c070e4df0ef876413f0a7ff7",
                "width": 48,
                "window": [
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              }
            },
            {
              "image": {
                "above_window_pixels": 0,
                "alt": "Spectral fixed metric, Broad sparse, water fraction, axial (z = 0 mm)",
                "below_window_pixels": 0,
                "file": "case2_sparse_r0_spectral_metric/water-axial.png",
                "height": 48,
                "physical_height_mm": 148.875,
                "physical_width_mm": 148.875,
                "sha256": "d317706ecf213a81a05195e2b87f829f6683fd3c73627f491191518dab0d7dbc",
                "width": 48,
                "window": [
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                ]
              },
              "outcome_id": "case2_sparse_r0_spectral_metric",
              "signed_error": {
                "above_window_pixels": 17,
                "alt": "Recovered minus assigned reference, case2_sparse_r0_spectral_metric, water fraction, axial (z = 0 mm)",
                "below_window_pixels": 20,
                "file": "case2_sparse_r0_spectral_metric/water-axial-error.png",
                "height": 48,
                "physical_height_mm": 148.875,
                "physical_width_mm": 148.875,
                "sha256": "ad5c44ce2d02ead6b4b03b1eac1905e8d71450a034dbaffcd82050d529822f23",
                "width": 48,
                "window": [
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              }
            },
            {
              "image": {
                "above_window_pixels": 0,
                "alt": "Spectral fixed metric, Limited angle, water fraction, axial (z = 0 mm)",
                "below_window_pixels": 0,
                "file": "case2_limited_r0_spectral_metric/water-axial.png",
                "height": 48,
                "physical_height_mm": 148.875,
                "physical_width_mm": 148.875,
                "sha256": "8a4a69aa4406913a91fa07a8fc2b6a86f07b5449ad7a1e1dc3694cc70128a7e4",
                "width": 48,
                "window": [
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                ]
              },
              "outcome_id": "case2_limited_r0_spectral_metric",
              "signed_error": {
                "above_window_pixels": 62,
                "alt": "Recovered minus assigned reference, case2_limited_r0_spectral_metric, water fraction, axial (z = 0 mm)",
                "below_window_pixels": 45,
                "file": "case2_limited_r0_spectral_metric/water-axial-error.png",
                "height": 48,
                "physical_height_mm": 148.875,
                "physical_width_mm": 148.875,
                "sha256": "b7f04b1b24765421bdd9b5befc2448a22bf20de49b79a62e4ab170dd3b6798b4",
                "width": 48,
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              }
            }
          ],
          "reference": {
            "above_window_pixels": 0,
            "alt": "Assigned reference, water fraction, axial (z = 0 mm)",
            "below_window_pixels": 0,
            "file": "reference/spectral-water-axial.png",
            "height": 48,
            "physical_height_mm": 148.875,
            "physical_width_mm": 148.875,
            "sha256": "d923a1a9cfab7bc1e4c4f501e84b907bde55e30a32ee271ddf43151dc191633e",
            "width": 48,
            "window": [
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          },
          "units": "fraction"
        },
        {
          "key": "water-coronal",
          "plane": "coronal",
          "plane_label": "Coronal (y = 0 mm)",
          "quantity": "water",
          "quantity_label": "Water fraction",
          "recovered": [
            {
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                "alt": "Spectral fixed metric, Broad dense, water fraction, coronal (y = 0 mm)",
                "below_window_pixels": 0,
                "file": "case2_dense_r0_spectral_metric/water-coronal.png",
                "height": 48,
                "physical_height_mm": 192.0,
                "physical_width_mm": 148.875,
                "sha256": "fc19b423b7023920983a8ab6a639b0075d73748e5c683b27f75ec0f8e9143662",
                "width": 48,
                "window": [
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                ]
              },
              "outcome_id": "case2_dense_r0_spectral_metric",
              "signed_error": {
                "above_window_pixels": 254,
                "alt": "Recovered minus assigned reference, case2_dense_r0_spectral_metric, water fraction, coronal (y = 0 mm)",
                "below_window_pixels": 41,
                "file": "case2_dense_r0_spectral_metric/water-coronal-error.png",
                "height": 48,
                "physical_height_mm": 192.0,
                "physical_width_mm": 148.875,
                "sha256": "5503390b900cdc10966946abc7b62ef9d3d9a7a8592c67f42f525e52a5e9b005",
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                "window": [
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              }
            },
            {
              "image": {
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                "alt": "Spectral fixed metric, Broad sparse, water fraction, coronal (y = 0 mm)",
                "below_window_pixels": 0,
                "file": "case2_sparse_r0_spectral_metric/water-coronal.png",
                "height": 48,
                "physical_height_mm": 192.0,
                "physical_width_mm": 148.875,
                "sha256": "5a4210fd98e3e9279c6d0e215e4f04368c54896973e766ac57acd3208a5694d1",
                "width": 48,
                "window": [
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                ]
              },
              "outcome_id": "case2_sparse_r0_spectral_metric",
              "signed_error": {
                "above_window_pixels": 44,
                "alt": "Recovered minus assigned reference, case2_sparse_r0_spectral_metric, water fraction, coronal (y = 0 mm)",
                "below_window_pixels": 69,
                "file": "case2_sparse_r0_spectral_metric/water-coronal-error.png",
                "height": 48,
                "physical_height_mm": 192.0,
                "physical_width_mm": 148.875,
                "sha256": "acf50e2f18db3c0b4ec3b2ce1a8ba927a0c99efa760de67b7ea2fa3f158b5fe5",
                "width": 48,
                "window": [
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              }
            },
            {
              "image": {
                "above_window_pixels": 0,
                "alt": "Spectral fixed metric, Limited angle, water fraction, coronal (y = 0 mm)",
                "below_window_pixels": 0,
                "file": "case2_limited_r0_spectral_metric/water-coronal.png",
                "height": 48,
                "physical_height_mm": 192.0,
                "physical_width_mm": 148.875,
                "sha256": "d6e2e9998a52a51b23c9ed5ad41b29fc4fbbb745bae7d8e08dcee75321ab7e1b",
                "width": 48,
                "window": [
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                ]
              },
              "outcome_id": "case2_limited_r0_spectral_metric",
              "signed_error": {
                "above_window_pixels": 66,
                "alt": "Recovered minus assigned reference, case2_limited_r0_spectral_metric, water fraction, coronal (y = 0 mm)",
                "below_window_pixels": 102,
                "file": "case2_limited_r0_spectral_metric/water-coronal-error.png",
                "height": 48,
                "physical_height_mm": 192.0,
                "physical_width_mm": 148.875,
                "sha256": "6a6270a8b2b8ea045eddaf922af6ca0cf2c988f16bbd6a766ee23327eb66dc5e",
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                "window": [
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              }
            }
          ],
          "reference": {
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            "alt": "Assigned reference, water fraction, coronal (y = 0 mm)",
            "below_window_pixels": 0,
            "file": "reference/spectral-water-coronal.png",
            "height": 48,
            "physical_height_mm": 192.0,
            "physical_width_mm": 148.875,
            "sha256": "77efb75b0e056ff9bc18c0e2fbb9324b0df5124dedbf1c1feb0225dfda43354f",
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            ]
          },
          "units": "fraction"
        },
        {
          "key": "water-sagittal",
          "plane": "sagittal",
          "plane_label": "Sagittal (x = 0 mm)",
          "quantity": "water",
          "quantity_label": "Water fraction",
          "recovered": [
            {
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                "alt": "Spectral fixed metric, Broad dense, water fraction, sagittal (x = 0 mm)",
                "below_window_pixels": 0,
                "file": "case2_dense_r0_spectral_metric/water-sagittal.png",
                "height": 48,
                "physical_height_mm": 192.0,
                "physical_width_mm": 148.875,
                "sha256": "c3ac1c995fae77b6ad2ee4926779d742833962b54f8b3d42ba0393ac8e458860",
                "width": 48,
                "window": [
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                ]
              },
              "outcome_id": "case2_dense_r0_spectral_metric",
              "signed_error": {
                "above_window_pixels": 334,
                "alt": "Recovered minus assigned reference, case2_dense_r0_spectral_metric, water fraction, sagittal (x = 0 mm)",
                "below_window_pixels": 88,
                "file": "case2_dense_r0_spectral_metric/water-sagittal-error.png",
                "height": 48,
                "physical_height_mm": 192.0,
                "physical_width_mm": 148.875,
                "sha256": "9f03d37719b1cc585340102ba94a4b7c62e5701427ddd9d56f03cb9ab1445609",
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                "window": [
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              }
            },
            {
              "image": {
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                "alt": "Spectral fixed metric, Broad sparse, water fraction, sagittal (x = 0 mm)",
                "below_window_pixels": 0,
                "file": "case2_sparse_r0_spectral_metric/water-sagittal.png",
                "height": 48,
                "physical_height_mm": 192.0,
                "physical_width_mm": 148.875,
                "sha256": "c171c668628f04ec8ad03f5db3e9a33a11fc2b2dc104d370d3636ce99dfe4572",
                "width": 48,
                "window": [
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                ]
              },
              "outcome_id": "case2_sparse_r0_spectral_metric",
              "signed_error": {
                "above_window_pixels": 104,
                "alt": "Recovered minus assigned reference, case2_sparse_r0_spectral_metric, water fraction, sagittal (x = 0 mm)",
                "below_window_pixels": 128,
                "file": "case2_sparse_r0_spectral_metric/water-sagittal-error.png",
                "height": 48,
                "physical_height_mm": 192.0,
                "physical_width_mm": 148.875,
                "sha256": "911b58f83b82e2b93465f7f80ff4c9b685b781f638f6fa975a1f71e1da9fc2f8",
                "width": 48,
                "window": [
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                ]
              }
            },
            {
              "image": {
                "above_window_pixels": 0,
                "alt": "Spectral fixed metric, Limited angle, water fraction, sagittal (x = 0 mm)",
                "below_window_pixels": 0,
                "file": "case2_limited_r0_spectral_metric/water-sagittal.png",
                "height": 48,
                "physical_height_mm": 192.0,
                "physical_width_mm": 148.875,
                "sha256": "7b799d8cc38a054e91880f66cf0e16234fe824624e02ca55f91de4c519f4bc14",
                "width": 48,
                "window": [
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                ]
              },
              "outcome_id": "case2_limited_r0_spectral_metric",
              "signed_error": {
                "above_window_pixels": 177,
                "alt": "Recovered minus assigned reference, case2_limited_r0_spectral_metric, water fraction, sagittal (x = 0 mm)",
                "below_window_pixels": 205,
                "file": "case2_limited_r0_spectral_metric/water-sagittal-error.png",
                "height": 48,
                "physical_height_mm": 192.0,
                "physical_width_mm": 148.875,
                "sha256": "0fa375fcc37ac770ecba54439a18caac488244367fa93ed9c4ad3d680f1a816a",
                "width": 48,
                "window": [
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                ]
              }
            }
          ],
          "reference": {
            "above_window_pixels": 0,
            "alt": "Assigned reference, water fraction, sagittal (x = 0 mm)",
            "below_window_pixels": 0,
            "file": "reference/spectral-water-sagittal.png",
            "height": 48,
            "physical_height_mm": 192.0,
            "physical_width_mm": 148.875,
            "sha256": "885f12d7d48c5a122292f4b767a60e88ebde3ee47e9831aa6f1e12d13cb623b9",
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            "window": [
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            ]
          },
          "units": "fraction"
        },
        {
          "key": "attenuation-axial",
          "plane": "axial",
          "plane_label": "Axial (z = 0 mm)",
          "quantity": "attenuation",
          "quantity_label": "Derived attenuation at 80 keV",
          "recovered": [
            {
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                "alt": "Spectral fixed metric, Broad dense, derived attenuation at 80 kev, axial (z = 0 mm)",
                "below_window_pixels": 0,
                "file": "case2_dense_r0_spectral_metric/attenuation-axial.png",
                "height": 48,
                "physical_height_mm": 148.875,
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              },
              "outcome_id": "case2_dense_r0_spectral_metric",
              "signed_error": {
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                "alt": "Recovered minus assigned reference, case2_dense_r0_spectral_metric, derived attenuation at 80 kev, axial (z = 0 mm)",
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                "file": "case2_dense_r0_spectral_metric/attenuation-axial-error.png",
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              }
            },
            {
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                "alt": "Spectral fixed metric, Broad sparse, derived attenuation at 80 kev, axial (z = 0 mm)",
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                "file": "case2_sparse_r0_spectral_metric/attenuation-axial.png",
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                "physical_height_mm": 148.875,
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              },
              "outcome_id": "case2_sparse_r0_spectral_metric",
              "signed_error": {
                "above_window_pixels": 0,
                "alt": "Recovered minus assigned reference, case2_sparse_r0_spectral_metric, derived attenuation at 80 kev, axial (z = 0 mm)",
                "below_window_pixels": 0,
                "file": "case2_sparse_r0_spectral_metric/attenuation-axial-error.png",
                "height": 48,
                "physical_height_mm": 148.875,
                "physical_width_mm": 148.875,
                "sha256": "0830d7b854b70ea0674603db0abae31df5456aa08907195fdd6b2fa2cf28a254",
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              }
            },
            {
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                "alt": "Spectral fixed metric, Limited angle, derived attenuation at 80 kev, axial (z = 0 mm)",
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                "file": "case2_limited_r0_spectral_metric/attenuation-axial.png",
                "height": 48,
                "physical_height_mm": 148.875,
                "physical_width_mm": 148.875,
                "sha256": "6e37519b70e9a2813794b98c9d95d05adfcab24c9abef10f991f6f188f0f58d2",
                "width": 48,
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              },
              "outcome_id": "case2_limited_r0_spectral_metric",
              "signed_error": {
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                "alt": "Recovered minus assigned reference, case2_limited_r0_spectral_metric, derived attenuation at 80 kev, axial (z = 0 mm)",
                "below_window_pixels": 1,
                "file": "case2_limited_r0_spectral_metric/attenuation-axial-error.png",
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          ],
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            "alt": "Assigned reference, derived attenuation at 80 kev, axial (z = 0 mm)",
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          },
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        },
        {
          "key": "attenuation-coronal",
          "plane": "coronal",
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          "recovered": [
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                "alt": "Spectral fixed metric, Broad dense, derived attenuation at 80 kev, coronal (y = 0 mm)",
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                "file": "case2_dense_r0_spectral_metric/attenuation-coronal.png",
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                "physical_height_mm": 192.0,
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              },
              "outcome_id": "case2_dense_r0_spectral_metric",
              "signed_error": {
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                "alt": "Recovered minus assigned reference, case2_dense_r0_spectral_metric, derived attenuation at 80 kev, coronal (y = 0 mm)",
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                "file": "case2_dense_r0_spectral_metric/attenuation-coronal-error.png",
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                "physical_height_mm": 192.0,
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              }
            },
            {
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                "alt": "Spectral fixed metric, Broad sparse, derived attenuation at 80 kev, coronal (y = 0 mm)",
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                "file": "case2_sparse_r0_spectral_metric/attenuation-coronal.png",
                "height": 48,
                "physical_height_mm": 192.0,
                "physical_width_mm": 148.875,
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              },
              "outcome_id": "case2_sparse_r0_spectral_metric",
              "signed_error": {
                "above_window_pixels": 0,
                "alt": "Recovered minus assigned reference, case2_sparse_r0_spectral_metric, derived attenuation at 80 kev, coronal (y = 0 mm)",
                "below_window_pixels": 0,
                "file": "case2_sparse_r0_spectral_metric/attenuation-coronal-error.png",
                "height": 48,
                "physical_height_mm": 192.0,
                "physical_width_mm": 148.875,
                "sha256": "cef48549b0430c942d4bc75bf81585f4ba70437ae30f7a86cf3a0fc015cdf729",
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              }
            },
            {
              "image": {
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                "alt": "Spectral fixed metric, Limited angle, derived attenuation at 80 kev, coronal (y = 0 mm)",
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                "file": "case2_limited_r0_spectral_metric/attenuation-coronal.png",
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                "physical_height_mm": 192.0,
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              },
              "outcome_id": "case2_limited_r0_spectral_metric",
              "signed_error": {
                "above_window_pixels": 0,
                "alt": "Recovered minus assigned reference, case2_limited_r0_spectral_metric, derived attenuation at 80 kev, coronal (y = 0 mm)",
                "below_window_pixels": 1,
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                "physical_height_mm": 192.0,
                "physical_width_mm": 148.875,
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              }
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          ],
          "reference": {
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            "alt": "Assigned reference, derived attenuation at 80 kev, coronal (y = 0 mm)",
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            "file": "reference/spectral-attenuation-coronal.png",
            "height": 48,
            "physical_height_mm": 192.0,
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          },
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        {
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          "quantity": "attenuation",
          "quantity_label": "Derived attenuation at 80 keV",
          "recovered": [
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                "alt": "Spectral fixed metric, Broad dense, derived attenuation at 80 kev, sagittal (x = 0 mm)",
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                "file": "case2_dense_r0_spectral_metric/attenuation-sagittal.png",
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              },
              "outcome_id": "case2_dense_r0_spectral_metric",
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                "alt": "Recovered minus assigned reference, case2_dense_r0_spectral_metric, derived attenuation at 80 kev, sagittal (x = 0 mm)",
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                "file": "case2_dense_r0_spectral_metric/attenuation-sagittal-error.png",
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            },
            {
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                "alt": "Spectral fixed metric, Broad sparse, derived attenuation at 80 kev, sagittal (x = 0 mm)",
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                "file": "case2_sparse_r0_spectral_metric/attenuation-sagittal.png",
                "height": 48,
                "physical_height_mm": 192.0,
                "physical_width_mm": 148.875,
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              },
              "outcome_id": "case2_sparse_r0_spectral_metric",
              "signed_error": {
                "above_window_pixels": 0,
                "alt": "Recovered minus assigned reference, case2_sparse_r0_spectral_metric, derived attenuation at 80 kev, sagittal (x = 0 mm)",
                "below_window_pixels": 0,
                "file": "case2_sparse_r0_spectral_metric/attenuation-sagittal-error.png",
                "height": 48,
                "physical_height_mm": 192.0,
                "physical_width_mm": 148.875,
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              }
            },
            {
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                "alt": "Spectral fixed metric, Limited angle, derived attenuation at 80 kev, sagittal (x = 0 mm)",
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                "file": "case2_limited_r0_spectral_metric/attenuation-sagittal.png",
                "height": 48,
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              },
              "outcome_id": "case2_limited_r0_spectral_metric",
              "signed_error": {
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                "alt": "Recovered minus assigned reference, case2_limited_r0_spectral_metric, derived attenuation at 80 kev, sagittal (x = 0 mm)",
                "below_window_pixels": 0,
                "file": "case2_limited_r0_spectral_metric/attenuation-sagittal-error.png",
                "height": 48,
                "physical_height_mm": 192.0,
                "physical_width_mm": 148.875,
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              }
            }
          ],
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            "alt": "Assigned reference, derived attenuation at 80 kev, sagittal (x = 0 mm)",
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            "height": 48,
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      ]
    },
    {
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        },
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              "alt": "case2_dense_r0_spectral_euclidean, first whole withheld prediction, negative log over known open beam",
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        ],
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            [
              75.0,
              15.0
            ],
            [
              82.5,
              15.0
            ],
            [
              90.0,
              15.0
            ],
            [
              97.5,
              15.0
            ],
            [
              105.0,
              15.0
            ],
            [
              112.5,
              15.0
            ],
            [
              120.0,
              15.0
            ],
            [
              127.5,
              15.0
            ],
            [
              135.0,
              15.0
            ],
            [
              142.5,
              15.0
            ],
            [
              150.0,
              15.0
            ],
            [
              157.5,
              15.0
            ],
            [
              165.0,
              15.0
            ],
            [
              172.5,
              15.0
            ],
            [
              180.0,
              15.0
            ],
            [
              187.5,
              15.0
            ],
            [
              195.0,
              15.0
            ],
            [
              202.5,
              15.0
            ],
            [
              210.0,
              15.0
            ],
            [
              217.5,
              15.0
            ],
            [
              225.0,
              15.0
            ],
            [
              232.5,
              15.0
            ],
            [
              240.0,
              15.0
            ],
            [
              247.5,
              15.0
            ],
            [
              255.0,
              15.0
            ],
            [
              262.5,
              15.0
            ],
            [
              270.0,
              15.0
            ],
            [
              277.5,
              15.0
            ],
            [
              285.0,
              15.0
            ],
            [
              292.5,
              15.0
            ],
            [
              300.0,
              15.0
            ],
            [
              307.5,
              15.0
            ],
            [
              315.0,
              15.0
            ],
            [
              322.5,
              15.0
            ],
            [
              330.0,
              15.0
            ],
            [
              337.5,
              15.0
            ],
            [
              345.0,
              15.0
            ],
            [
              352.5,
              15.0
            ]
          ],
          "id": "dense",
          "incident_photons_per_view": 200000.0,
          "label": "Broad dense",
          "outcome_id": "case2_dense_r0_spectral_euclidean",
          "views": 144
        }
      ],
      "slices": [
        {
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          "quantity_label": "Bone fraction",
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                "alt": "Recovered minus assigned reference, case2_dense_r0_spectral_euclidean, bone fraction, axial (z = 0 mm)",
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                "file": "case2_dense_r0_spectral_euclidean/bone-axial-error.png",
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          },
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        {
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          "quantity_label": "Bone fraction",
          "recovered": [
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                "alt": "Recovered minus assigned reference, case2_dense_r0_spectral_euclidean, bone fraction, coronal (y = 0 mm)",
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                "file": "case2_dense_r0_spectral_euclidean/bone-coronal-error.png",
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          ],
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          },
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        {
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          "quantity_label": "Bone fraction",
          "recovered": [
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              "signed_error": {
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                "alt": "Recovered minus assigned reference, case2_dense_r0_spectral_euclidean, bone fraction, sagittal (x = 0 mm)",
                "below_window_pixels": 527,
                "file": "case2_dense_r0_spectral_euclidean/bone-sagittal-error.png",
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          ],
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        {
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          "quantity_label": "Water fraction",
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              "signed_error": {
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                "alt": "Recovered minus assigned reference, case2_dense_r0_spectral_euclidean, water fraction, axial (z = 0 mm)",
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                "file": "case2_dense_r0_spectral_euclidean/water-axial-error.png",
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        {
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          "quantity_label": "Water fraction",
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                "alt": "Recovered minus assigned reference, case2_dense_r0_spectral_euclidean, water fraction, coronal (y = 0 mm)",
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                "file": "case2_dense_r0_spectral_euclidean/water-coronal-error.png",
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                "alt": "Recovered minus assigned reference, case2_dense_r0_spectral_euclidean, water fraction, sagittal (x = 0 mm)",
                "below_window_pixels": 90,
                "file": "case2_dense_r0_spectral_euclidean/water-sagittal-error.png",
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          ],
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        {
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          "quantity": "attenuation",
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                "alt": "Recovered minus assigned reference, case2_dense_r0_spectral_euclidean, derived attenuation at 80 kev, axial (z = 0 mm)",
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                "file": "case2_dense_r0_spectral_euclidean/attenuation-axial-error.png",
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          ],
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        {
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          "quantity": "attenuation",
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                "alt": "Spectral Euclidean, Broad dense, derived attenuation at 80 kev, coronal (y = 0 mm)",
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              },
              "outcome_id": "case2_dense_r0_spectral_euclidean",
              "signed_error": {
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                "alt": "Recovered minus assigned reference, case2_dense_r0_spectral_euclidean, derived attenuation at 80 kev, coronal (y = 0 mm)",
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                "file": "case2_dense_r0_spectral_euclidean/attenuation-coronal-error.png",
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          ],
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        {
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          "quantity": "attenuation",
          "quantity_label": "Derived attenuation at 80 keV",
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                "alt": "Spectral Euclidean, Broad dense, derived attenuation at 80 kev, sagittal (x = 0 mm)",
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              },
              "outcome_id": "case2_dense_r0_spectral_euclidean",
              "signed_error": {
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                "alt": "Recovered minus assigned reference, case2_dense_r0_spectral_euclidean, derived attenuation at 80 kev, sagittal (x = 0 mm)",
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                "file": "case2_dense_r0_spectral_euclidean/attenuation-sagittal-error.png",
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          ],
          "reference": {
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            "alt": "Assigned reference, derived attenuation at 80 kev, sagittal (x = 0 mm)",
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      ]
    }
  ],
  "limitations": [
    "Anatomy is acquired. Composition and primary-only observations are simulated.",
    "Only the prescribed case 2, replicate 0 final accepted fields are displayed. All forty outcomes remain in the table.",
    "Time, update and line-search limits do not establish stationarity or a global optimum.",
    "Spectral attenuation is derived at 80 keV from the two fitted fractions and fixed physical coefficients.",
    "Scalar and spectral observations use different physical models. Equal incident photon number is not equal patient dose.",
    "Zero observed counts give positive-infinite optical depth and count above the display window. No pseudocount is added.",
    "Physical zero slices interpolate only between adjacent stored planes. In-plane pixels, full box support and raw numerical metrics are unchanged.",
    "Two paired noise replicates describe this comparison, not population uncertainty."
  ],
  "outcomes": [
    {
      "accepted_updates": 47,
      "attenuation_rmse_mm_inverse": 0.0014680198155367597,
      "bone_rmse": null,
      "case": 2,
      "evaluation_status": "complete",
      "hard_correctness_passed": true,
      "id": "case2_dense_r0_scalar_poisson",
      "method": "scalar_poisson",
      "regime": "dense",
      "replicate": 0,
      "solve_seconds": 609.1949242481496,
      "stationarity_passed": false,
      "status": "completed",
      "termination": "wall_time_budget",
      "water_rmse": null,
      "withheld_deviance_per_sample": 10.159549779356057
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    {
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      "attenuation_rmse_mm_inverse": 0.0013590095396768464,
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      "case": 2,
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