{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn03584_002.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Catonsville, Maryland | 1904 | mapsnap generated fit (2026-10-20)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-20"},{"label":"run","value":"corpus-v2"},{"label":"pages","value":"7"},{"label":"placed","value":"4"},{"label":"unplaced","value":"3"},{"label":"fit sources","value":"georef 2, georef-snap 2"},{"label":"key map","value":"none"},{"label":"split sheets","value":"1 sheet(s) cut into 3 panels"},{"label":"unplaced pages","value":"p1__1 (tier 4, 39.27141,-76.73218 +/-311m); p1__2 (tier 1, 39.26947,-76.73648 +/-127m); p2 (tier 1, 39.27266,-76.73607 +/-256m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035841904:03584_1904-0001__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Catonsville, Maryland | 1904 | sanborn03584_002 p1 [3]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.61"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2778.0"},{"label":"split_canvas_y","value":"3545.2"},{"label":"split_canvas_w","value":"3674.0"},{"label":"split_canvas_h","value":"4106.8"}],"created":"2026-10-20T00:18:12Z","modified":"2026-10-20T00:18:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035841904:03584_1904-0001__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035841904:03584_1904-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"714.3,1215.7 694.5,1394.9 694.5,1613.5 694.5,1809.0 737.5,1806.8 749.0,1871.3 783.8,1805.1 1059.3,1802.2 1256.6,1883.4 1565.1,1897.9 1591.9,927.1 863.3,907.6 718.0,910.3 745.2,1216.5 714.3,1215.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035841904:03584_1904-0001__3/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[694.5,886.3],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.7307640906568,39.272820648799026]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,886.3],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.72866629864642,39.273298635920526]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.72797498939987,39.27148722858912]}},{"type":"Feature","properties":{"resourceCoords":[694.5,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.73007278141026,39.271009241467624]}},{"type":"Feature","properties":{"resourceCoords":[1536.0,1226.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.7286132,39.2726589]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035841904:03584_1904-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Catonsville, Maryland | 1904 | sanborn03584_002 p3","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"5"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T00:18:12Z","modified":"2026-10-20T00:18:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035841904:03584_1904-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035841904:03584_1904-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"52.4,1794.2 30.0,1561.1 98.5,1298.7 42.5,875.0 94.1,706.7 40.2,594.2 40.0,276.0 93.7,70.3 219.5,110.8 968.7,26.2 1080.3,237.1 1207.9,270.5 1372.6,162.0 1475.5,173.8 1478.6,394.2 1587.7,498.4 1565.7,727.5 1492.9,890.3 1418.3,886.0 1371.1,979.7 1327.8,1203.2 1460.1,1305.9 1485.0,1471.5 1466.7,1478.2 1503.6,1783.2 1472.6,1783.3 1462.5,1912.0 1457.0,1912.0 1452.5,1912.0 1449.3,1783.5 835.5,1791.2 578.5,1799.8 14.3,1809.8 52.4,1794.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035841904:03584_1904-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[608.0,350.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.7333474,39.2744002]}},{"type":"Feature","properties":{"resourceCoords":[1062.0,1788.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.7314389,39.2720505]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035841904:03584_1904-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Catonsville, Maryland | 1904 | sanborn03584_002 p4","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T00:18:12Z","modified":"2026-10-20T00:18:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035841904:03584_1904-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035841904:03584_1904-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1497.3,1796.5 907.9,1893.5 131.1,1789.8 48.8,1466.1 51.3,114.2 242.2,39.2 492.2,104.4 1405.6,55.8 1529.0,127.9 1524.6,545.0 1528.2,1374.8 1563.3,1374.4 1528.5,1825.4 1497.3,1796.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035841904:03584_1904-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[174.0,1362.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.73617388960693,39.26863306904449]}},{"type":"Feature","properties":{"resourceCoords":[1034.0,133.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.73503702561568,39.27123057626463]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035841904:03584_1904-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Catonsville, Maryland | 1904 | sanborn03584_002 p5","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.56"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T00:18:12Z","modified":"2026-10-20T00:18:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035841904:03584_1904-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035841904:03584_1904-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"139.7,1383.0 103.8,1383.5 96.9,537.0 99.8,111.3 138.7,104.3 718.4,108.3 982.5,105.9 1612.0,113.5 1612.0,723.6 1529.7,728.5 1474.2,1166.9 1560.9,1246.7 1591.6,1412.2 1568.2,1820.6 1504.0,1880.5 1151.4,1826.1 330.3,1848.5 199.1,1787.2 125.7,1797.4 123.5,1859.5 105.9,1843.3 139.7,1383.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035841904:03584_1904-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1201.0,118.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.7314640822032,39.27202680165786]}},{"type":"Feature","properties":{"resourceCoords":[81.0,118.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.73395556612155,39.27147214985615]}}]}}]}