{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn08473_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Columbus, Texas | 1885 | mapsnap generated fit (2026-10-17)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-17"},{"label":"run","value":"corpus-v2"},{"label":"pages","value":"1"},{"label":"placed","value":"1"},{"label":"unplaced","value":"0"},{"label":"fit sources","value":"georef-snap 1"},{"label":"key map","value":"none"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034cm:g4034cm_g084731885:08473_1885-0001/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Columbus, Texas | 1885 | sanborn08473_001 p1","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T19:35:50Z","modified":"2026-10-17T19:35:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034cm:g4034cm_g084731885:08473_1885-0001/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034cm:g4034cm_g084731885:08473_1885-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"106.8,882.5 36.6,545.9 75.3,126.5 270.0,31.5 868.6,24.6 1345.3,50.5 1529.0,119.1 1595.7,890.2 1516.9,1786.0 1558.4,1836.9 317.7,1878.0 97.2,1865.5 44.0,1123.2 106.8,882.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034cm:g4034cm_g084731885:08473_1885-0001/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1353.0,970.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.53927448047116,29.706531731425297]}},{"type":"Feature","properties":{"resourceCoords":[188.0,367.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.54184596302302,29.70761978938269]}}]}}]}