{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn03752_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Hopkinton, Massachusetts | 1888 | 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":"5"},{"label":"placed","value":"4"},{"label":"unplaced","value":"1"},{"label":"fit sources","value":"georef 4"},{"label":"key map","value":"none"},{"label":"split sheets","value":"2 sheet(s) cut into 5 panels"},{"label":"unplaced pages","value":"p1__3 (tier 4, 42.22692,-71.52177 +/-384m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764hm:g037521888:03752_1888-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hopkinton, Massachusetts | 1888 | sanborn03752_001 p1 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.26"},{"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":"2026-10-18T11:06:05Z","modified":"2026-10-18T11:06:05Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764hm:g037521888:03752_1888-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764hm:g037521888:03752_1888-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"21.9,309.7 123.8,655.8 145.9,666.0 95.3,1302.8 64.2,1197.9 91.7,1860.2 273.6,1880.3 457.8,1828.8 408.9,1563.8 387.5,1448.3 387.5,1448.3 393.7,1410.9 431.1,1185.6 431.1,1185.6 442.4,1180.2 776.7,1180.4 776.9,1182.7 782.0,1182.6 782.0,1247.5 816.1,1677.1 1560.8,1539.9 1561.5,1539.8 1562.1,1539.7 1611.8,1113.4 1529.5,617.5 1575.3,169.1 1551.0,94.3 1425.0,32.8 188.6,25.5 90.9,60.6 21.9,309.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764hm:g037521888:03752_1888-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[606.0,605.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.520846,42.228655]}},{"type":"Feature","properties":{"resourceCoords":[965.0,528.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.519956,42.228903]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764hm:g037521888:03752_1888-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hopkinton, Massachusetts | 1888 | sanborn03752_001 p1 [2]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.73"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"1550.0"},{"label":"split_canvas_y","value":"4730.4"},{"label":"split_canvas_w","value":"1578.0"},{"label":"split_canvas_h","value":"2921.6"}],"created":"2026-10-18T11:06:05Z","modified":"2026-10-18T11:06:05Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764hm:g037521888:03752_1888-0001__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764hm:g037521888:03752_1888-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"561.2,1829.4 506.2,1871.5 757.3,1848.5 763.5,1293.3 706.4,1216.8 439.9,1218.3 405.6,1495.8 463.9,1714.2 547.8,1761.5 483.4,1807.8 561.2,1829.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764hm:g037521888:03752_1888-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[387.5,1182.6],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.51828309392576,42.226034109600334]}},{"type":"Feature","properties":{"resourceCoords":[782.0,1182.6],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.51736399435407,42.22629007492032]}},{"type":"Feature","properties":{"resourceCoords":[782.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.51672192107954,42.22503520224989]}},{"type":"Feature","properties":{"resourceCoords":[387.5,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.51764102065123,42.224779236929905]}},{"type":"Feature","properties":{"resourceCoords":[690.1,1798.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.517037,42.225173]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764hm:g037521888:03752_1888-0002__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hopkinton, Massachusetts | 1888 | sanborn03752_001 p2 [1]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"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":"3808.0"},{"label":"split_canvas_w","value":"5014.4"},{"label":"split_canvas_h","value":"3844.0"}],"created":"2026-10-18T11:06:05Z","modified":"2026-10-18T11:06:05Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764hm:g037521888:03752_1888-0002__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764hm:g037521888:03752_1888-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1219.0,1063.7 1200.5,1065.1 1212.5,987.1 1099.3,962.8 546.7,976.9 341.5,1093.9 173.8,1003.4 44.9,1063.4 46.0,1753.2 109.1,1790.5 114.9,1896.0 1092.3,1911.6 1252.6,1763.3 1252.6,1681.3 1178.8,1478.0 1209.3,1478.0 1219.0,1063.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764hm:g037521888:03752_1888-0002__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[811.8,1478.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.5258732,42.2269847]}},{"type":"Feature","properties":{"resourceCoords":[365.9,1478.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.5268282,42.2265673]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764hm:g037521888:03752_1888-0002__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hopkinton, Massachusetts | 1888 | sanborn03752_001 p2 [2]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.04"},{"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":"2026-10-18T11:06:05Z","modified":"2026-10-18T11:06:05Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764hm:g037521888:03752_1888-0002__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764hm:g037521888:03752_1888-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"44.0,94.3 76.7,535.0 44.2,538.1 143.7,746.2 152.7,832.6 182.4,827.4 647.6,887.9 1031.2,859.8 1215.3,952.0 1244.5,952.0 1253.6,952.0 1275.8,982.3 1253.6,1070.6 1253.6,1091.2 1253.6,1192.2 1508.0,529.9 1487.7,512.1 1488.1,111.4 1469.2,141.7 997.7,25.4 756.1,136.9 212.4,64.6 44.0,94.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764hm:g037521888:03752_1888-0002__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[281.0,515.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.5246094,42.2275372]}},{"type":"Feature","properties":{"resourceCoords":[1503.0,515.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.5220262,42.2284283]}}]}}]}