{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn00197_002.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Bald Knob, Arkansas | 1913 | 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":"2"},{"label":"placed","value":"2"},{"label":"unplaced","value":"0"},{"label":"fit sources","value":"georef-street 1, georef-snap 1"},{"label":"key map","value":"none"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd400m:g4004m:g4004bm:g001971913:00197_1913-0001/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bald Knob, Arkansas | 1913 | sanborn00197_002 p1","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.85"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-22T14:03:27Z","modified":"2026-10-22T14:03:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd400m:g4004m:g4004bm:g001971913:00197_1913-0001/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd400m:g4004m:g4004bm:g001971913:00197_1913-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"32.7,1453.8 43.8,52.4 1484.6,46.6 1584.5,146.7 1599.0,439.1 1557.7,845.5 1611.0,1184.4 1593.3,1808.1 1554.0,1882.8 1272.5,1872.7 1272.1,1860.0 738.1,1881.0 200.5,1878.3 114.2,1881.6 32.7,1453.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd400m:g4004m:g4004bm:g001971913:00197_1913-0001/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.5712543,35.3111934]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.568322,35.3129357]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.56578979999999,35.310097799999994]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.5687221,35.3083555]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd400m:g4004m:g4004bm:g001971913:00197_1913-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bald Knob, Arkansas | 1913 | sanborn00197_002 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.81"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-22T14:03:27Z","modified":"2026-10-22T14:03:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd400m:g4004m:g4004bm:g001971913:00197_1913-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd400m:g4004m:g4004bm:g001971913:00197_1913-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1584.1,223.9 1586.4,1831.9 1307.0,1894.2 72.3,1876.9 30.1,1800.7 37.2,325.3 82.8,215.4 129.1,249.8 135.8,156.0 127.3,109.6 211.9,107.0 739.2,114.1 1263.2,97.8 1263.5,110.3 1539.5,122.5 1584.1,223.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd400m:g4004m:g4004bm:g001971913:00197_1913-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[745.0,1500.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.56552070456382,35.3071232007364]}},{"type":"Feature","properties":{"resourceCoords":[745.0,414.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.56700276572984,35.308755699057784]}}]}}]}