{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn09501_002.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Black River Falls, Wisconsin | 1892 | 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":"7"},{"label":"placed","value":"1"},{"label":"unplaced","value":"6"},{"label":"fit sources","value":"georef 1"},{"label":"key map","value":"none"},{"label":"split sheets","value":"2 sheet(s) cut into 5 panels"},{"label":"unplaced pages","value":"p1__1 (tier 4, 44.29315,-90.84927 +/-100m); p1__2 (tier 4, 44.29315,-90.84927 +/-100m); p1__3 (tier 4, 44.29315,-90.84927 +/-100m); p2 (tier 4, 44.29315,-90.84927 +/-100m); p3 (tier 4, 44.29315,-90.84927 +/-100m); p4__1 (tier 4, 44.29315,-90.84927 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd412m:g4124m:g4124bm:g095011892:09501_1892-0004__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Black River Falls, Wisconsin | 1892 | sanborn09501_002 p4 [2]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.29"},{"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":"2026-10-19T04:52:23Z","modified":"2026-10-19T04:52:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd412m:g4124m:g4124bm:g095011892:09501_1892-0004__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd412m:g4124m:g4124bm:g095011892:09501_1892-0004","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"541.0,1344.0 621.5,1845.0 1520.3,1882.9 1598.0,1822.6 1605.9,288.3 1537.1,86.2 1496.9,34.4 1195.1,19.6 140.2,56.4 77.9,260.6 46.8,766.0 122.8,1007.3 120.6,1276.2 199.2,1274.9 200.3,1340.4 362.0,1344.0 386.7,1344.0 541.0,1344.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd412m:g4124m:g4124bm:g095011892:09501_1892-0004__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[665.0,58.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.8496567,44.2950141]}},{"type":"Feature","properties":{"resourceCoords":[215.0,58.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.8509503,44.2950291]}}]}}]}