{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn03657_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Sykesville, Maryland | 1911 | mapsnap generated fit (2026-09-23)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-23"},{"label":"run","value":"corpus-v1"},{"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":"3 sheet(s) cut into 7 panels"},{"label":"unplaced pages","value":"p1__1 (tier 4, 39.37666,-76.96662 +/-100m); p1__2 (tier 4, 39.37666,-76.96662 +/-100m); p2__2 (tier 4, 39.37666,-76.96662 +/-100m); p2__3 (tier 4, 39.37666,-76.96662 +/-100m); p3__1 (tier 4, 39.37666,-76.96662 +/-100m); p3__2 (tier 4, 39.37666,-76.96662 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844sm:g3844sm_g036571911:03657_1911-0002__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Sykesville, Maryland | 1911 | sanborn03657_001 p2 [1]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"8"},{"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":"2234.4"}],"created":"2026-09-23T04:36:41Z","modified":"2026-09-23T04:36:41Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844sm:g3844sm_g036571911:03657_1911-0002__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844sm:g3844sm_g036571911:03657_1911-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,220.7 1613.0,0.0 -0.0,0.0 0.0,558.1 612.7,558.2 1094.9,558.4 1613.0,558.6 1613.0,220.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844sm:g3844sm_g036571911:03657_1911-0002__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1062.0,173.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.9665662,39.3766375]}},{"type":"Feature","properties":{"resourceCoords":[39.0,263.8],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.9667195,39.3767575]}}]}}]}