{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn00947_002.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Alamosa, Colorado | 1890 | 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":"2"},{"label":"unplaced","value":"2"},{"label":"fit sources","value":"georef 2"},{"label":"key map","value":"none"},{"label":"split sheets","value":"1 sheet(s) cut into 3 panels"},{"label":"unplaced pages","value":"p2__1 (tier 4, 37.46888,-105.86438 +/-167m); p2__2 (tier 4, 37.46888,-105.86438 +/-167m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314am:g009471890:00947_1890-0001/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Alamosa, Colorado | 1890 | sanborn00947_002 p1","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.66"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T17:29:08Z","modified":"2026-10-18T17:29:08Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314am:g009471890:00947_1890-0001/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314am:g009471890:00947_1890-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1519.4,1865.0 557.7,1818.6 343.8,1858.4 76.8,1795.4 116.8,1462.2 35.1,879.2 91.6,116.9 297.4,25.4 793.5,85.4 1184.8,43.3 1340.8,100.4 1443.5,39.9 1488.5,83.6 1567.2,452.2 1527.1,770.7 1581.9,999.1 1576.5,1709.0 1519.4,1865.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314am:g009471890:00947_1890-0001/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1040.0,1072.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-105.8638284,37.46711]}},{"type":"Feature","properties":{"resourceCoords":[1040.0,1784.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-105.8654652,37.4671272]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314am:g009471890:00947_1890-0002__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Alamosa, Colorado | 1890 | sanborn00947_002 p2 [3]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.69"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"5354.0"},{"label":"split_canvas_w","value":"2048.0"},{"label":"split_canvas_h","value":"2298.0"}],"created":"2026-10-18T17:29:08Z","modified":"2026-10-18T17:29:08Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314am:g009471890:00947_1890-0002__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314am:g009471890:00947_1890-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"475.1,1649.5 491.0,1442.8 424.8,1353.8 158.3,1374.6 145.2,1450.4 124.4,1470.6 96.6,1450.2 84.3,1374.2 44.7,1883.7 96.5,1891.3 111.6,1817.6 230.1,1818.2 259.3,1884.8 466.5,1893.2 415.8,1686.2 475.1,1649.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314am:g009471890:00947_1890-0002__3/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,1338.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-105.86454799116088,37.47069810984175]}},{"type":"Feature","properties":{"resourceCoords":[512.0,1338.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-105.86454200609565,37.469764892110696]}},{"type":"Feature","properties":{"resourceCoords":[512.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-105.86586395905067,37.469759563283496]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-105.8658699441159,37.47069278101455]}},{"type":"Feature","properties":{"resourceCoords":[172.0,1738.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-105.8654656,37.4703809]}}]}}]}