{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn01005_004.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Golden, Colorado | 1900 | key map | 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"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314gm:g010051900:01005_1900-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Golden, Colorado | 1900 | sanborn01005_004 p1 [1]","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"19"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6878.4"},{"label":"split_canvas_h","value":"6071.8"}],"created":"2026-10-22T13:20:24Z","modified":"2026-10-22T13:20:24Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314gm:g010051900:01005_1900-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314gm:g010051900:01005_1900-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1343.3,0.0 0.0,0.0 0.0,958.6 805.1,958.6 855.1,958.6 859.4,1518.0 1613,1518.0 1613,0.0 1343.3,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314gm:g010051900:01005_1900-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[496.9,754.7],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-105.2292829,39.7604391]}},{"type":"Feature","properties":{"resourceCoords":[852.9,754.7],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-105.224405,39.7631606]}}]}}]}