{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn07531_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Big Run, Pennsylvania | 1910 | 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":"9"},{"label":"placed","value":"1"},{"label":"unplaced","value":"8"},{"label":"fit sources","value":"georef-snap 1"},{"label":"key map","value":"none"},{"label":"split sheets","value":"2 sheet(s) cut into 8 panels"},{"label":"unplaced pages","value":"p1__1 (tier 4, 40.97018,-78.86921 +/-100m); p1__2 (tier 1, 41.04555,-78.83086 +/-168m); p1__3 (tier 4, 40.97018,-78.86921 +/-100m); p1__4 (tier 4, 40.97018,-78.86921 +/-100m); p1__5 (tier 4, 40.97018,-78.86921 +/-100m); p3__1 (tier 1, 40.96693,-78.87886 +/-180m); p3__2 (tier 1, 41.18133,-79.20676 +/-204m); p3__3 (tier 4, 40.97018,-78.86921 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075311910:07531_1910-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Big Run, Pennsylvania | 1910 | sanborn07531_001 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.47"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T08:46:20Z","modified":"2026-10-19T08:46:20Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075311910:07531_1910-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075311910:07531_1910-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1437.8,69.8 1572.0,570.4 1467.7,1139.5 1582.5,1663.9 1563.8,1877.7 49.0,1837.2 28.4,1497.6 111.9,1199.0 36.9,817.2 128.3,728.5 148.5,581.4 138.4,271.5 54.7,256.6 71.0,82.9 349.6,16.8 1062.3,131.3 1437.8,69.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075311910:07531_1910-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[666.0,77.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-78.8674441059452,40.971090721683055]}},{"type":"Feature","properties":{"resourceCoords":[1332.0,1736.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-78.87035570892803,40.96871725057678]}}]}}]}