{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn04187_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Sand Beach, Michigan | 1884 | 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":"4"},{"label":"placed","value":"1"},{"label":"unplaced","value":"3"},{"label":"fit sources","value":"georef 1"},{"label":"key map","value":"none"},{"label":"split sheets","value":"2 sheet(s) cut into 4 panels"},{"label":"unplaced pages","value":"p1__1 (tier 4, 43.84439,-82.65350 +/-100m); p1__2 (tier 4, 43.84439,-82.65350 +/-100m); p2__2 (tier 4, 43.84439,-82.65350 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041871884:04187_1884-0002__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Sand Beach, Michigan | 1884 | sanborn04187_001 p2 [1]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"16"},{"label":"confidence","value":"0.68"},{"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":"6512.0"},{"label":"split_canvas_h","value":"7708.0"}],"created":"2026-10-18T07:21:16Z","modified":"2026-10-18T07:21:16Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041871884:04187_1884-0002__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041871884:04187_1884-0002","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"58.1,1152.9 40.6,1172.3 63.0,1791.7 97.6,1829.6 596.1,1903.5 1564.9,1875.4 1627.0,1158.7 1627.0,1155.3 1605.3,51.4 964.8,58.2 905.9,863.0 901.1,863.0 901.1,865.5 608.9,865.5 105.4,869.8 58.1,1152.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041871884:04187_1884-0002__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[649.0,1789.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.6538239,43.842842]}},{"type":"Feature","properties":{"resourceCoords":[1130.0,149.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.6527813,43.8459243]}}]}}]}