{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn06528_005.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Casselton, North-Dakota | 1917 | mapsnap generated fit (2026-10-22)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-22"},{"label":"run","value":"corpus-v2.1"},{"label":"pages","value":"7"},{"label":"placed","value":"3"},{"label":"unplaced","value":"4"},{"label":"fit sources","value":"georef 2, georef-snap 1"},{"label":"key map","value":"none"},{"label":"split sheets","value":"2 sheet(s) cut into 5 panels"},{"label":"unplaced pages","value":"p1__2 (tier 4, 46.90202,-97.21625 +/-308m); p2 (tier 1, 46.90468,-97.21778 +/-149m); p4__2 (tier 1, 46.90246,-97.21295 +/-100m); p4__3 (tier 1, 46.89845,-97.21877 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd417m:g4174m:g4174cm:g065281917:06528_1917-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Casselton, North-Dakota | 1917 | sanborn06528_005 p1 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.58"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"2926.0"},{"label":"split_canvas_w","value":"6512.0"},{"label":"split_canvas_h","value":"4782.0"}],"created":"2026-10-22T13:29:37Z","modified":"2026-10-22T13:29:37Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd417m:g4174m:g4174cm:g065281917:06528_1917-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd417m:g4174m:g4174cm:g065281917:06528_1917-0001","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1587.8,1753.0 1572.6,1753.5 1541.7,1060.2 1471.3,778.0 1126.7,745.3 49.1,776.7 49.9,1316.4 96.5,1450.6 65.0,1885.0 253.2,1912.0 704.0,1846.3 1005.4,1889.9 1003.0,1861.0 1494.7,1825.5 1587.8,1753.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd417m:g4174m:g4174cm:g065281917:06528_1917-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1003.0,1329.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.2141341,46.9038202]}},{"type":"Feature","properties":{"resourceCoords":[1003.0,1861.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.2158847,46.903915]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd417m:g4174m:g4174cm:g065281917:06528_1917-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Casselton, North-Dakota | 1917 | sanborn06528_005 p3","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.40"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-22T13:29:37Z","modified":"2026-10-22T13:29:37Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd417m:g4174m:g4174cm:g065281917:06528_1917-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd417m:g4174m:g4174cm:g065281917:06528_1917-0003","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1494.4,80.1 1585.8,257.1 1540.0,1868.7 55.2,1873.3 77.7,187.7 52.9,182.4 52.3,146.5 664.1,142.8 785.3,60.5 1494.4,80.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd417m:g4174m:g4174cm:g065281917:06528_1917-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1199.0,708.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.2174178418744,46.90184476798261]}},{"type":"Feature","properties":{"resourceCoords":[78.0,139.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.2158657403319,46.90386809991866]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd417m:g4174m:g4174cm:g065281917:06528_1917-0004__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Casselton, North-Dakota | 1917 | sanborn06528_005 p4 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.26"},{"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":"6512.0"},{"label":"split_canvas_h","value":"7708.0"}],"created":"2026-10-22T13:29:37Z","modified":"2026-10-22T13:29:37Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd417m:g4174m:g4174cm:g065281917:06528_1917-0004__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd417m:g4174m:g4174cm:g065281917:06528_1917-0004","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1013.4,1383.9 1151.5,1477.7 1543.1,1461.8 1599.9,1128.0 1611.0,199.6 1451.0,69.6 754.6,21.3 58.6,74.6 79.5,1858.8 514.7,1871.7 637.0,1581.1 607.5,1443.4 659.0,1286.8 659.0,1273.5 659.0,1269.0 665.0,1269.0 984.0,1268.0 984.2,1269.0 990.0,1269.0 990.0,1291.8 1013.4,1383.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd417m:g4174m:g4174cm:g065281917:06528_1917-0004__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[606.0,643.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.2174436,46.8988812]}},{"type":"Feature","properties":{"resourceCoords":[606.0,80.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.2189762,46.898885]}}]}}]}