{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn02492_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Salem, Indiana | 1887 | 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":"2"},{"label":"unplaced","value":"1"},{"label":"fit sources","value":"georef-snap 2"},{"label":"key map","value":"none"},{"label":"split sheets","value":"1 sheet(s) cut into 2 panels"},{"label":"unplaced pages","value":"p2__2 (tier 4, 38.60468,-86.10109 +/-169m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094sm:g4094sm_g024921887:02492_1887-0001/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Salem, Indiana | 1887 | sanborn02492_001 p1","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.91"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:51:42Z","modified":"2026-10-18T12:51:42Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094sm:g4094sm_g024921887:02492_1887-0001/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094sm:g4094sm_g024921887:02492_1887-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1580.4,203.4 1612.0,202.9 1610.2,757.1 1606.2,1305.0 1584.2,1305.2 1594.3,1643.5 1536.3,1867.6 49.8,1869.7 79.8,26.4 1500.8,23.8 1591.9,95.0 1580.4,203.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094sm:g4094sm_g024921887:02492_1887-0001/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1053.0,1317.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1020724721675,38.605725876538585]}},{"type":"Feature","properties":{"resourceCoords":[505.0,211.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.09946320874631,38.60675751302491]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094sm:g4094sm_g024921887:02492_1887-0002__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Salem, Indiana | 1887 | sanborn02492_001 p2 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.88"},{"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":"2026-10-18T12:51:42Z","modified":"2026-10-18T12:51:42Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094sm:g4094sm_g024921887:02492_1887-0002__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094sm:g4094sm_g024921887:02492_1887-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"10.6,101.2 48.6,111.2 76.5,273.2 29.4,1413.0 114.4,1774.3 224.6,1790.0 316.1,1437.7 449.1,1365.4 802.9,1431.1 820.1,1431.0 820.1,1434.3 823.7,1435.0 871.1,1876.8 1525.9,1875.4 1606.0,1162.6 1571.5,103.0 1573.8,99.9 1464.4,88.3 1464.9,120.2 905.5,118.0 352.4,113.5 352.1,91.3 10.6,101.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094sm:g4094sm_g024921887:02492_1887-0002__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[367.0,660.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.10198691074017,38.603700026612046]}},{"type":"Feature","properties":{"resourceCoords":[1469.0,660.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.09940103008051,38.603718438557614]}}]}}]}