{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn07763_003.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Leechburg, Pennsylvania | 1897 | 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":"6"},{"label":"placed","value":"3"},{"label":"unplaced","value":"3"},{"label":"fit sources","value":"georef-snap 2, georef 1"},{"label":"key map","value":"none"},{"label":"split sheets","value":"1 sheet(s) cut into 4 panels"},{"label":"unplaced pages","value":"p1__2 (tier 1, 40.81256,-79.51937 +/-133m); p1__3 (tier 4, 40.62764,-79.60536 +/-212m); p1__4 (tier 4, 40.62764,-79.60536 +/-212m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824lm:g3824lm_g077631897:07763_1897-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Leechburg, Pennsylvania | 1897 | sanborn07763_003 p1 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.57"},{"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":"3260.4"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-18T06:35:04Z","modified":"2026-10-18T06:35:04Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824lm:g3824lm_g077631897:07763_1897-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824lm:g3824lm_g077631897:07763_1897-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"57.0,372.4 142.8,786.3 155.1,786.3 96.2,1288.8 158.9,1288.1 256.4,1856.0 285.8,1842.3 273.8,1682.8 314.3,1644.4 368.6,796.9 375.2,780.6 375.2,780.5 766.6,774.9 742.1,73.6 149.2,159.6 140.2,128.3 56.7,372.4 57.0,372.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824lm:g3824lm_g077631897:07763_1897-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[325.1,1286.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-79.6046486,40.6285863]}},{"type":"Feature","properties":{"resourceCoords":[780.1,364.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-79.6063657,40.6299601]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824lm:g3824lm_g077631897:07763_1897-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Leechburg, Pennsylvania | 1897 | sanborn07763_003 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.85"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T06:35:04Z","modified":"2026-10-18T06:35:04Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824lm:g3824lm_g077631897:07763_1897-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824lm:g3824lm_g077631897:07763_1897-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"114.2,87.5 140.9,97.7 301.6,103.2 328.6,91.5 801.0,98.8 1273.4,101.7 1488.5,103.5 1571.3,654.7 1522.0,676.5 1501.5,856.0 1532.3,1834.9 1241.2,1860.5 919.7,1754.1 477.4,1884.4 170.2,1863.1 79.8,1796.9 75.3,1588.5 109.9,1564.5 69.6,1268.1 131.4,1186.8 146.3,904.3 52.0,674.5 85.0,205.8 53.8,115.8 114.2,87.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824lm:g3824lm_g077631897:07763_1897-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1026.0,900.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-79.60327349623793,40.62697065427409]}},{"type":"Feature","properties":{"resourceCoords":[1475.0,900.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-79.60290575361006,40.627778613094975]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824lm:g3824lm_g077631897:07763_1897-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Leechburg, Pennsylvania | 1897 | sanborn07763_003 p3","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.72"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T06:35:04Z","modified":"2026-10-18T06:35:04Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824lm:g3824lm_g077631897:07763_1897-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824lm:g3824lm_g077631897:07763_1897-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"149.9,1811.0 97.5,1852.7 68.4,1773.1 184.1,1452.3 50.0,1147.8 93.5,341.9 299.0,183.9 607.4,183.8 619.4,134.3 961.6,144.4 1298.8,58.6 1506.0,110.6 1492.9,198.2 1537.8,279.6 1474.5,332.8 1570.5,670.5 1489.5,905.8 1489.8,905.9 1571.7,1305.2 1583.5,1305.3 1525.5,1789.9 1371.6,1791.5 900.7,1797.3 429.6,1798.6 402.9,1810.8 242.7,1808.3 215.8,1798.6 156.1,1827.9 149.9,1811.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824lm:g3824lm_g077631897:07763_1897-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1108.0,906.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-79.60728363706178,40.62802075799437]}},{"type":"Feature","properties":{"resourceCoords":[1108.0,1803.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-79.6051645143075,40.62743181970264]}}]}}]}