{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn02581_006.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Bloomfield, Iowa | 1907 | mapsnap generated fit (2026-10-22)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-22"},{"label":"run","value":"corpus-v2.1"},{"label":"pages","value":"9"},{"label":"placed","value":"7"},{"label":"unplaced","value":"2"},{"label":"fit sources","value":"georef 6, georef-snap 1"},{"label":"key map","value":"georeferenced"},{"label":"unplaced pages","value":"p1__2 (tier 4, 40.75185,-92.41764 +/-610m); p1__3 (tier 4, 40.75185,-92.41764 +/-610m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154bm:g025811907:02581_1907-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomfield, Iowa | 1907 | sanborn02581_006 p1 [1]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.89"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2202.8"},{"label":"split_canvas_h","value":"4092.0"}],"created":"2026-10-22T13:35:10Z","modified":"2026-10-22T13:35:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154bm:g025811907:02581_1907-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154bm:g025811907:02581_1907-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"499.7,526.8 420.5,525.5 293.8,267.8 292.8,38.4 126.8,59.9 82.0,149.4 66.4,970.8 514.2,978.6 499.7,526.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154bm:g025811907:02581_1907-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[293.9,266.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-92.424468,40.750579]}},{"type":"Feature","properties":{"resourceCoords":[293.9,809.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-92.424467,40.749598]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154bm:g025811907:02581_1907-0001__4/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomfield, Iowa | 1907 | sanborn02581_006 p1 [4]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.81"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"4033.2"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"3618.8"}],"created":"2026-10-22T13:35:10Z","modified":"2026-10-22T13:35:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154bm:g025811907:02581_1907-0001__4/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154bm:g025811907:02581_1907-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"32.5,1449.0 37.0,1667.9 161.8,1912.0 237.6,1912.0 237.4,1908.5 1563.6,1909.9 1586.2,1047.2 103.1,1041.0 26.8,1184.7 38.0,1448.2 32.5,1449.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154bm:g025811907:02581_1907-0001__4/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[571.0,1658.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-92.42313391605846,40.75057923252344]}},{"type":"Feature","properties":{"resourceCoords":[1580.0,1291.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-92.42060004025178,40.75124480353777]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154bm:g025811907:02581_1907-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomfield, Iowa | 1907 | sanborn02581_006 p2","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"5"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-22T13:35:10Z","modified":"2026-10-22T13:35:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154bm:g025811907:02581_1907-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154bm:g025811907:02581_1907-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1.0,1829.9 1.0,1834.5 1240.0,1835.0 1544.1,1832.0 1555.7,1298.7 1544.5,1298.7 1541.9,758.2 1546.2,758.2 1549.7,127.5 833.1,145.1 622.5,29.2 56.4,37.0 13.1,341.9 36.4,1829.8 1.0,1829.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154bm:g025811907:02581_1907-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[704.0,1835.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-92.417691,40.752694]}},{"type":"Feature","properties":{"resourceCoords":[1240.0,1835.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-92.416376,40.752693]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154bm:g025811907:02581_1907-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomfield, Iowa | 1907 | sanborn02581_006 p3","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-22T13:35:10Z","modified":"2026-10-22T13:35:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154bm:g025811907:02581_1907-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154bm:g025811907:02581_1907-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"72.8,1291.5 61.4,1291.5 58.0,745.8 62.3,745.8 64.8,109.0 272.0,103.5 359.8,22.7 594.4,66.1 1231.8,35.1 1481.1,93.1 1584.7,466.6 1580.8,1793.0 1612.0,1796.6 1612.0,1803.8 1612.0,1829.0 880.0,1827.8 305.9,1827.1 61.9,1829.9 72.8,1291.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154bm:g025811907:02581_1907-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[872.0,1290.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-92.413658,40.753688]}},{"type":"Feature","properties":{"resourceCoords":[1424.0,1828.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-92.41232,40.752695]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154bm:g025811907:02581_1907-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomfield, Iowa | 1907 | sanborn02581_006 p4","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"14"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-22T13:35:10Z","modified":"2026-10-22T13:35:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154bm:g025811907:02581_1907-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154bm:g025811907:02581_1907-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"287.0,53.8 1546.8,61.6 1538.4,616.5 1538.6,1190.0 1536.7,1840.2 1502.7,1883.9 507.0,1893.9 234.5,1826.2 86.8,1869.8 21.1,1714.6 67.5,1272.3 16.6,1124.6 70.5,645.5 36.0,143.9 73.3,48.2 287.1,49.2 287.0,53.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154bm:g025811907:02581_1907-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[998.0,615.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-92.417695,40.751676]}},{"type":"Feature","properties":{"resourceCoords":[1536.0,1747.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-92.416383,40.74961]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154bm:g025811907:02581_1907-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomfield, Iowa | 1907 | sanborn02581_006 p5","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"20"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-22T13:35:10Z","modified":"2026-10-22T13:35:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154bm:g025811907:02581_1907-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154bm:g025811907:02581_1907-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"277.1,1224.4 264.9,657.8 261.7,109.3 809.6,95.5 1380.5,88.3 1374.0,639.0 1381.5,1192.2 1394.0,1757.8 1380.3,1757.9 1375.9,1822.9 1283.2,1864.8 962.1,1848.2 888.2,1783.8 327.4,1814.9 288.8,1866.9 277.1,1224.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154bm:g025811907:02581_1907-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[814.0,639.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-92.415048,40.751696]}},{"type":"Feature","properties":{"resourceCoords":[1374.0,639.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-92.41368,40.751679]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154bm:g025811907:02581_1907-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomfield, Iowa | 1907 | sanborn02581_006 p6","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"15"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-22T13:35:10Z","modified":"2026-10-22T13:35:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154bm:g025811907:02581_1907-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154bm:g025811907:02581_1907-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"843.0,76.8 843.0,44.5 1486.8,119.6 1560.5,244.1 1608.9,1799.2 1557.8,1872.8 193.2,1883.9 81.7,1821.5 87.0,1756.2 100.8,1756.2 95.9,1186.9 96.0,630.0 110.1,75.8 843.0,76.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154bm:g025811907:02581_1907-0006/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1186.0,630.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-92.4110342,40.7516734]}},{"type":"Feature","properties":{"resourceCoords":[96.0,630.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-92.41368,40.751679]}}]}}]}