{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn02722_003.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Logan, Iowa | 1899 | 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":"5"},{"label":"placed","value":"2"},{"label":"unplaced","value":"3"},{"label":"fit sources","value":"georef 2"},{"label":"key map","value":"none"},{"label":"split sheets","value":"1 sheet(s) cut into 4 panels"},{"label":"unplaced pages","value":"p2__2 (tier 1, 41.64163,-95.78490 +/-100m); p2__3 (tier 1, 41.64073,-95.78002 +/-100m); p2__4 (tier 1, 41.64166,-95.78485 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154lm:g027221899:02722_1899-0001/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Logan, Iowa | 1899 | sanborn02722_003 p1","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"5"},{"label":"confidence","value":"0.90"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-22T12:56:47Z","modified":"2026-10-22T12:56:47Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154lm:g027221899:02722_1899-0001/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154lm:g027221899:02722_1899-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"91.9,1876.5 38.0,1429.8 107.4,1265.9 42.0,1103.2 74.8,826.1 29.1,500.0 95.9,66.3 1224.2,20.0 1459.4,77.8 1459.5,212.0 1451.4,759.9 1452.0,1310.3 1461.9,1879.9 91.9,1876.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154lm:g027221899:02722_1899-0001/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[933.0,216.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.787797,41.645119]}},{"type":"Feature","properties":{"resourceCoords":[933.0,1861.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.787837,41.641993]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154lm:g027221899:02722_1899-0002__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Logan, Iowa | 1899 | sanborn02722_003 p2 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"11"},{"label":"confidence","value":"0.96"},{"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":"2026-10-22T12:56:47Z","modified":"2026-10-22T12:56:47Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154lm:g027221899:02722_1899-0002__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154lm:g027221899:02722_1899-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"135.8,46.3 135.8,181.6 127.0,734.0 127.0,1289.0 136.3,1863.3 1138.5,1866.9 1285.4,1457.7 1370.7,1385.4 1499.5,1384.3 1539.2,997.5 1435.8,619.0 1266.0,612.5 1133.0,612.5 1133.0,607.4 1127.9,607.2 1068.5,350.1 1095.5,163.8 1044.9,99.8 536.0,25.3 207.1,63.9 135.8,46.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154lm:g027221899:02722_1899-0002__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[127.0,1289.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.7865037,41.64303]}},{"type":"Feature","properties":{"resourceCoords":[127.0,734.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.7864919,41.644076]}}]}}]}