{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn03740_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Hadley, Massachusetts | 1915 | 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":"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 7 panels"},{"label":"unplaced pages","value":"p1__2 (tier 4, 42.34258,-72.58924 +/-100m); p1__3 (tier 4, 42.34258,-72.58924 +/-100m); p2__1 (tier 4, 42.34258,-72.58924 +/-100m); p2__2 (tier 4, 42.34258,-72.58924 +/-100m); p2__3 (tier 4, 42.34258,-72.58924 +/-100m); p2__4 (tier 4, 42.34258,-72.58924 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764hm:g037401915:03740_1915-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hadley, Massachusetts | 1915 | sanborn03740_001 p1 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.45"},{"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":"2026-10-18T10:08:25Z","modified":"2026-10-18T10:08:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764hm:g037401915:03740_1915-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764hm:g037401915:03740_1915-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1499.9,1486.5 1575.0,1251.1 1585.6,894.3 1209.1,853.1 1208.9,851.5 1204.7,851.5 1205.2,823.3 1175.8,602.6 1210.7,480.3 1210.9,470.0 1213.7,470.0 1214.6,466.8 1558.4,454.6 1588.8,128.4 1521.8,43.5 40.4,48.0 47.0,1500.4 127.5,1805.3 486.9,1881.8 1142.9,1891.8 1184.7,1508.0 1190.3,1507.6 1190.3,1501.0 1287.7,1501.0 1499.9,1486.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764hm:g037401915:03740_1915-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[68.0,169.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.591229,42.3439365]}},{"type":"Feature","properties":{"resourceCoords":[68.0,1112.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.591062,42.342193]}}]}}]}