{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn03587_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Chesapeake City, Maryland | 1901 | 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":"10"},{"label":"placed","value":"3"},{"label":"unplaced","value":"7"},{"label":"fit sources","value":"georef 3"},{"label":"key map","value":"none"},{"label":"split sheets","value":"3 sheet(s) cut into 10 panels"},{"label":"unplaced pages","value":"p1__2 (tier 4, 39.52876,-75.80944 +/-428m); p2__2 (tier 2, 39.52985,-75.80736 +/-100m); p2__3 (tier 2, 39.52985,-75.80736 +/-100m); p2__4 (tier 2, 39.52985,-75.80736 +/-100m); p2__5 (tier 2, 39.52985,-75.80736 +/-100m); p3__1 (tier 4, 39.52876,-75.80944 +/-428m); p3__3 (tier 4, 39.52876,-75.80944 +/-428m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035871901:03587_1901-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chesapeake City, Maryland | 1901 | sanborn03587_001 p1 [1]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.09"},{"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":"2026-10-19T22:36:40Z","modified":"2026-10-19T22:36:40Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035871901:03587_1901-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035871901:03587_1901-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1516.3,1875.8 1591.0,1765.1 1596.5,1351.0 1491.8,834.4 1587.3,338.1 1578.9,87.5 1514.8,23.3 1300.4,83.4 564.2,20.9 373.9,115.5 363.0,943.7 357.5,943.8 357.5,945.0 304.3,945.0 135.7,948.7 22.9,1457.0 84.2,1792.4 156.1,1836.1 176.3,1740.1 1516.3,1875.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035871901:03587_1901-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[175.0,998.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.8056335,39.5310715]}},{"type":"Feature","properties":{"resourceCoords":[175.0,1642.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.8071259,39.5308675]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035871901:03587_1901-0002__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chesapeake City, Maryland | 1901 | sanborn03587_001 p2 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.11"},{"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":"2026-10-19T22:36:40Z","modified":"2026-10-19T22:36:40Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035871901:03587_1901-0002__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035871901:03587_1901-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"55.6,306.9 53.6,1848.9 481.8,1857.2 627.5,1572.2 572.4,1463.3 387.2,1439.8 407.8,878.1 409.9,801.8 410.6,801.8 410.8,797.2 801.9,799.3 840.7,641.1 841.1,615.1 847.3,614.4 847.5,613.4 1464.5,527.2 1550.8,458.0 1531.3,82.4 1324.0,59.5 1328.8,47.7 1.0,189.9 1.0,287.7 55.6,306.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035871901:03587_1901-0002__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[209.0,1551.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.8105952,39.530532]}},{"type":"Feature","properties":{"resourceCoords":[556.0,1697.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.8109678,39.5299061]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035871901:03587_1901-0003__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chesapeake City, Maryland | 1901 | sanborn03587_001 p3 [2]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.64"},{"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":"2026-10-19T22:36:40Z","modified":"2026-10-19T22:36:40Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035871901:03587_1901-0003__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035871901:03587_1901-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1559.1,1508.0 1588.7,557.9 1563.1,233.8 1478.2,39.0 770.8,55.6 660.5,181.7 640.1,421.0 138.6,419.9 79.0,472.4 211.6,721.4 63.5,957.7 73.5,1285.9 529.7,1355.8 582.5,1369.0 582.5,1378.7 582.5,1400.9 607.4,1422.1 624.9,1791.8 691.7,1867.7 1518.0,1833.0 1485.4,1621.1 1559.1,1508.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035871901:03587_1901-0003__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[865.0,598.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.8131406,39.5273538]}},{"type":"Feature","properties":{"resourceCoords":[676.0,1728.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.8152921,39.5260036]}}]}}]}