{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn00957_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Blanca, Colorado | 1914 | mapsnap generated fit (2026-10-18)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-18"},{"label":"run","value":"corpus-v2"},{"label":"pages","value":"3"},{"label":"placed","value":"1"},{"label":"unplaced","value":"2"},{"label":"fit sources","value":"georef 1"},{"label":"key map","value":"none"},{"label":"split sheets","value":"1 sheet(s) cut into 3 panels"},{"label":"unplaced pages","value":"p1__1 (tier 4, 37.43573,-105.51367 +/-100m); p1__3 (tier 4, 37.43573,-105.51367 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314bm:g009571914:00957_1914-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Blanca, Colorado | 1914 | sanborn00957_001 p1 [2]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.25"},{"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":"2026-10-18T00:41:22Z","modified":"2026-10-18T00:41:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314bm:g009571914:00957_1914-0001__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314bm:g009571914:00957_1914-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1498.9,22.4 524.0,35.0 450.0,356.6 56.5,352.2 36.8,1312.5 348.5,1318.1 362.4,1318.0 362.4,1318.3 362.9,1318.3 419.6,1870.7 1561.7,1869.7 1583.9,68.0 1498.9,22.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314bm:g009571914:00957_1914-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[500.0,1162.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-105.5141446,37.4364529]}},{"type":"Feature","properties":{"resourceCoords":[1558.0,1162.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-105.5144776,37.4341287]}}]}}]}