{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn00955_004.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Berthoud, Colorado | 1911 | 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":"4"},{"label":"placed","value":"3"},{"label":"unplaced","value":"1"},{"label":"fit sources","value":"georef-snap 2, georef 1"},{"label":"key map","value":"none"},{"label":"split sheets","value":"1 sheet(s) cut into 3 panels"},{"label":"unplaced pages","value":"p1__2 (tier 1, 40.30401,-105.08479 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314bm:g009551911:00955_1911-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Berthoud, Colorado | 1911 | sanborn00955_004 p1 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.93"},{"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":"3492.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-18T17:29:13Z","modified":"2026-10-18T17:29:13Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314bm:g009551911:00955_1911-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314bm:g009551911:00955_1911-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"34.1,1801.8 543.7,1780.3 586.4,1549.9 795.9,1309.6 848.7,210.6 640.1,161.3 548.8,64.5 557.5,50.6 53.8,46.0 52.5,122.2 45.5,753.4 36.8,1301.1 34.1,1801.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314bm:g009551911:00955_1911-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[588.0,760.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-105.07977649823835,40.30416151022604]}},{"type":"Feature","properties":{"resourceCoords":[69.0,1847.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-105.08246806869744,40.30507126390611]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314bm:g009551911:00955_1911-0001__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Berthoud, Colorado | 1911 | sanborn00955_004 p1 [3]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.59"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2354.0"},{"label":"split_canvas_y","value":"1345.2"},{"label":"split_canvas_w","value":"4098.0"},{"label":"split_canvas_h","value":"6306.8"}],"created":"2026-10-18T17:29:13Z","modified":"2026-10-18T17:29:13Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314bm:g009551911:00955_1911-0001__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314bm:g009551911:00955_1911-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1542.3,1875.3 1584.6,1805.8 1587.9,902.5 1493.5,718.6 1520.2,418.0 1157.2,362.0 925.2,413.6 889.5,1183.2 862.0,1249.0 862.0,1250.5 860.5,1252.5 764.7,1482.0 622.3,1605.3 651.8,1836.4 1055.1,1875.0 1055.1,1875.3 1542.3,1875.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314bm:g009551911:00955_1911-0001__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1574.0,1835.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-105.07794201731217,40.304196151026716]}},{"type":"Feature","properties":{"resourceCoords":[1574.0,371.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-105.07424483958144,40.30425029620264]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314bm:g009551911:00955_1911-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Berthoud, Colorado | 1911 | sanborn00955_004 p2","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"16"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T17:29:13Z","modified":"2026-10-18T17:29:13Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314bm:g009551911:00955_1911-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314bm:g009551911:00955_1911-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1559.6,1883.3 69.7,1877.9 28.1,1768.2 47.7,293.1 124.0,98.2 656.0,20.8 1186.5,23.1 1185.5,15.3 1604.2,54.9 1603.8,131.7 1603.1,765.6 1599.9,1315.5 1602.2,1818.2 1559.6,1883.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314bm:g009551911:00955_1911-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1042.0,764.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-105.0798189,40.3062141]}},{"type":"Feature","properties":{"resourceCoords":[1042.0,1855.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-105.0824742,40.3061772]}}]}}]}