{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn02582_004.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Bonaparte, Iowa | 1927 | 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":"4"},{"label":"unplaced","value":"2"},{"label":"fit sources","value":"georef 3, snap:1 1"},{"label":"key map","value":"none"},{"label":"split sheets","value":"1 sheet(s) cut into 4 panels"},{"label":"unplaced pages","value":"p1__2 (tier 4, 40.70043,-91.80076 +/-270m); p1__3 (tier 1, 40.70490,-91.80127 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154bm:g025821927:02582_1927-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bonaparte, Iowa | 1927 | sanborn02582_004 p1 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.45"},{"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":"2268.0"},{"label":"split_canvas_h","value":"3600.8"}],"created":"2026-10-18T17:50:45Z","modified":"2026-10-18T17:50:45Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154bm:g025821927:02582_1927-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154bm:g025821927:02582_1927-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"518.5,875.8 538.3,75.2 82.2,17.8 30.6,125.0 56.5,445.2 38.9,447.8 38.9,449.5 504.8,876.1 518.5,875.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154bm:g025821927:02582_1927-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.7997605619532,40.70313625266624]}},{"type":"Feature","properties":{"resourceCoords":[567.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.79836685879665,40.703001902389616]}},{"type":"Feature","properties":{"resourceCoords":[567.0,900.2],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.7986461715628,40.70131287394353]}},{"type":"Feature","properties":{"resourceCoords":[0.0,900.2],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.80003987471936,40.70144722422015]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154bm:g025821927:02582_1927-0001__4/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bonaparte, Iowa | 1927 | sanborn02582_004 p1 [4]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"},{"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":"3482.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"4170.0"}],"created":"2026-10-18T17:50:45Z","modified":"2026-10-18T17:50:45Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154bm:g025821927:02582_1927-0001__4/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154bm:g025821927:02582_1927-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1612.0,1800.8 1612.0,1790.5 1612.0,1776.0 1566.7,1778.1 1583.8,1326.8 1570.0,1326.9 1108.3,889.0 1108.3,887.2 346.9,986.3 53.2,953.8 23.6,1785.1 41.3,1812.5 40.2,1859.0 573.0,1853.0 1095.8,1852.1 1096.0,1845.3 1612.0,1800.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154bm:g025821927:02582_1927-0001__4/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[573.0,1324.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.8012372,40.7015846]}},{"type":"Feature","properties":{"resourceCoords":[573.0,1853.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.801382,40.7006006]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154bm:g025821927:02582_1927-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bonaparte, Iowa | 1927 | sanborn02582_004 p2","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"11"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T17:50:45Z","modified":"2026-10-18T17:50:45Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154bm:g025821927:02582_1927-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154bm:g025821927:02582_1927-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1038.7,68.3 1038.0,115.0 1571.5,102.7 1581.0,653.3 1573.8,1149.6 1572.0,1553.0 1589.2,1552.6 1597.8,1808.8 1521.6,1868.2 825.1,1881.5 54.5,1823.9 29.4,678.1 157.9,305.9 135.0,119.7 307.0,40.3 1020.4,46.8 1020.5,41.1 1038.7,68.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154bm:g025821927:02582_1927-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[514.0,1166.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.8042907,40.6988702]}},{"type":"Feature","properties":{"resourceCoords":[1572.0,1553.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.8018188,40.69791]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154bm:g025821927:02582_1927-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bonaparte, Iowa | 1927 | sanborn02582_004 p3","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"13"},{"label":"confidence","value":"0.79"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T17:50:45Z","modified":"2026-10-18T17:50:45Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154bm:g025821927:02582_1927-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154bm:g025821927:02582_1927-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"22.4,1559.9 5.5,1560.0 12.6,1165.0 26.0,679.0 23.9,139.5 536.6,139.4 536.9,132.8 1043.0,89.8 1043.1,65.5 1536.5,43.9 1607.5,171.2 1612.0,1515.4 1612.0,1573.0 1566.6,1868.3 1256.7,1831.3 551.6,1887.5 27.6,1811.0 22.4,1559.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154bm:g025821927:02582_1927-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[533.0,1179.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.8003943,40.6985227]}},{"type":"Feature","properties":{"resourceCoords":[1573.0,1568.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.7978995,40.6975678]}}]}}]}