{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn00953_003.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Aurora, Colorado | 1942 | mapsnap generated fit (2026-10-19)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-19"},{"label":"run","value":"corpus-v2"},{"label":"pages","value":"13"},{"label":"placed","value":"7"},{"label":"unplaced","value":"6"},{"label":"fit sources","value":"georef-snap 5, georef 2"},{"label":"key map","value":"none"},{"label":"split sheets","value":"3 sheet(s) cut into 12 panels"},{"label":"unplaced pages","value":"p1__1 (tier 4, 39.74032,-104.86824 +/-1586m); p1__3 (tier 4, 39.74032,-104.86824 +/-1586m); p3__2 (tier 1, 39.73651,-104.84408 +/-100m); p3__3 (tier 1, 39.59663,-104.85080 +/-100m); p3__6 (tier 1, 39.73872,-104.88058 +/-100m); p4__2 (tier 1, 39.73932,-104.87363 +/-148m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314am:g009531942:00953_1942-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Aurora, Colorado | 1942 | sanborn00953_003 p1 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.90"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"2776.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"4876.0"}],"created":"2026-10-19T02:30:13Z","modified":"2026-10-19T02:30:13Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314am:g009531942:00953_1942-0001__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314am:g009531942:00953_1942-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"95.8,826.8 54.5,868.2 30.4,1618.6 78.7,1861.2 303.1,1853.4 343.4,1790.8 370.0,1563.5 370.0,1544.9 372.2,1544.9 372.2,1544.3 1019.6,1539.2 1055.2,1333.6 1055.2,1332.5 1055.4,1332.5 1055.9,1329.5 1342.8,1328.8 1343.6,1332.5 1344.0,1332.5 1344.0,1334.5 1387.4,1534.7 1523.5,1538.1 1552.5,1328.4 1544.0,853.9 1514.5,820.9 1326.8,773.5 1275.2,725.8 1277.4,722.7 1049.9,712.2 1049.9,709.2 802.8,709.3 802.8,703.8 555.7,722.0 555.5,805.1 555.4,824.3 181.9,826.8 95.8,826.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314am:g009531942:00953_1942-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[558.0,1323.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-104.87760282059628,39.73647017261884]}},{"type":"Feature","properties":{"resourceCoords":[1047.0,1323.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-104.87527046477814,39.736466219917254]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314am:g009531942:00953_1942-0001__4/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Aurora, Colorado | 1942 | sanborn00953_003 p1 [4]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.80"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"1480.0"},{"label":"split_canvas_y","value":"6179.6"},{"label":"split_canvas_w","value":"4972.0"},{"label":"split_canvas_h","value":"1472.4"}],"created":"2026-10-19T02:30:13Z","modified":"2026-10-19T02:30:13Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314am:g009531942:00953_1942-0001__4/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314am:g009531942:00953_1942-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1547.6,1847.3 1551.1,1837.2 1534.8,1600.1 1167.8,1554.5 442.2,1578.9 410.1,1784.4 466.8,1854.9 897.1,1859.0 1241.7,1908.5 1477.4,1910.3 1477.0,1865.5 1547.6,1847.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314am:g009531942:00953_1942-0001__4/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[566.0,1833.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-104.85172217072885,39.74016750092832]}},{"type":"Feature","properties":{"resourceCoords":[1539.0,1833.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-104.84715956031509,39.74013965774274]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314am:g009531942:00953_1942-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Aurora, Colorado | 1942 | sanborn00953_003 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T02:30:13Z","modified":"2026-10-19T02:30:13Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314am:g009531942:00953_1942-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314am:g009531942:00953_1942-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1575.7,1822.0 1528.0,1890.8 1065.1,1870.7 1065.1,1864.6 562.2,1866.4 562.2,1855.1 59.6,1893.8 59.5,1603.9 60.9,1096.4 65.1,1035.9 64.7,814.9 64.3,743.7 60.8,61.0 302.6,58.1 306.2,58.1 811.6,57.5 1102.5,55.2 1102.5,65.7 1417.0,109.0 1470.3,52.2 1497.6,52.0 1537.3,1028.7 1393.2,1029.4 1392.9,1090.5 1532.2,1089.8 1548.3,1125.8 1551.8,1271.6 1578.8,1367.2 1575.7,1822.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314am:g009531942:00953_1942-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[79.0,72.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-104.87753963234724,39.74195815303552]}},{"type":"Feature","properties":{"resourceCoords":[1553.0,72.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-104.87408427016808,39.7419442297104]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314am:g009531942:00953_1942-0003__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Aurora, Colorado | 1942 | sanborn00953_003 p3 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.94"},{"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":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-19T02:30:13Z","modified":"2026-10-19T02:30:13Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314am:g009531942:00953_1942-0003__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314am:g009531942:00953_1942-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"560.6,1831.5 647.9,1831.9 1026.6,1830.9 1026.7,1811.5 1028.3,1582.8 1030.8,1329.9 1033.1,1299.8 1033.7,1189.6 1034.5,813.9 1156.8,813.4 1408.6,814.9 1553.5,814.8 1558.2,331.5 1580.6,298.0 1562.3,100.3 1499.1,21.9 660.0,53.8 462.4,19.9 216.2,26.9 85.7,63.9 32.8,414.4 38.5,1290.8 75.8,1316.9 64.2,1529.5 423.6,1544.4 426.4,1544.5 531.5,1545.4 534.0,1549.0 574.5,1817.6 560.6,1831.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314am:g009531942:00953_1942-0003__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[785.0,809.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-104.8787556711372,39.74199436624219]}},{"type":"Feature","properties":{"resourceCoords":[1527.0,319.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-104.87526944971873,39.743771923248204]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314am:g009531942:00953_1942-0003__4/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Aurora, Colorado | 1942 | sanborn00953_003 p3 [4]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.69"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"4784.0"},{"label":"split_canvas_y","value":"4564.0"},{"label":"split_canvas_w","value":"1668.0"},{"label":"split_canvas_h","value":"1578.0"}],"created":"2026-10-19T02:30:13Z","modified":"2026-10-19T02:30:13Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314am:g009531942:00953_1942-0003__4/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314am:g009531942:00953_1942-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1554.8,1510.8 1549.8,1223.0 1383.0,1221.5 1356.2,1259.1 1211.8,1295.6 1214.5,1409.2 1297.8,1429.0 1323.5,1520.0 1554.8,1510.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314am:g009531942:00953_1942-0003__4/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1318.0,1253.8],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-104.86231770726448,39.74015600699249]}},{"type":"Feature","properties":{"resourceCoords":[1564.0,1253.8],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-104.86117947811019,39.74016391703168]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314am:g009531942:00953_1942-0003__5/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Aurora, Colorado | 1942 | sanborn00953_003 p3 [5]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.21"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"4230.0"},{"label":"split_canvas_y","value":"5723.6"},{"label":"split_canvas_w","value":"2222.0"},{"label":"split_canvas_h","value":"1928.4"}],"created":"2026-10-19T02:30:13Z","modified":"2026-10-19T02:30:13Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314am:g009531942:00953_1942-0003__5/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314am:g009531942:00953_1942-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1104.3,1905.7 1092.3,1911.5 1466.0,1912.0 1548.7,1912.0 1585.0,1675.4 1549.2,1610.7 1376.7,1599.7 1373.2,1574.5 1272.5,1563.6 1226.0,1498.9 1107.4,1470.0 1075.0,1527.3 1074.4,1875.6 1099.8,1888.3 1104.3,1905.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314am:g009531942:00953_1942-0003__5/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1078.5,1725.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-104.8658238,39.7401636]}},{"type":"Feature","properties":{"resourceCoords":[1560.0,1725.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-104.8634727,39.7401667]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314am:g009531942:00953_1942-0004__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Aurora, Colorado | 1942 | sanborn00953_003 p4 [1]","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"26"},{"label":"confidence","value":"0.94"},{"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":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-19T02:30:13Z","modified":"2026-10-19T02:30:13Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314am:g009531942:00953_1942-0004__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314am:g009531942:00953_1942-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"49.5,1267.8 70.8,1747.0 1.0,1747.6 1.0,1777.5 68.3,1777.0 76.3,1794.6 78.3,1866.2 91.4,1912.0 91.7,1912.0 91.9,1831.3 268.2,1829.8 459.6,1875.8 1017.8,1885.6 1572.0,1851.3 1587.8,727.4 1576.3,257.4 1534.2,63.2 1129.8,15.3 421.1,21.6 355.4,62.6 354.9,415.1 325.6,433.8 319.8,606.4 318.0,609.5 196.9,609.5 95.8,612.0 63.0,638.0 49.0,1130.3 36.1,1268.0 49.5,1267.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314am:g009531942:00953_1942-0004__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[815.0,767.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-104.870536,39.7437955]}},{"type":"Feature","properties":{"resourceCoords":[1553.0,1255.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-104.867031,39.741979]}}]}}]}