{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn04510_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Port Gibson, Mississippi | 1889 | 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":"7"},{"label":"placed","value":"2"},{"label":"unplaced","value":"5"},{"label":"fit sources","value":"georef 2"},{"label":"key map","value":"none"},{"label":"split sheets","value":"2 sheet(s) cut into 7 panels"},{"label":"unplaced pages","value":"p1__1 (tier 4, 31.95968,-90.98328 +/-129m); p1__3 (tier 4, 31.95968,-90.98328 +/-129m); p1__4 (tier 4, 31.95968,-90.98328 +/-129m); p2__2 (tier 4, 31.95968,-90.98328 +/-129m); p2__3 (tier 4, 31.95968,-90.98328 +/-129m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984pm:g3984pm_g045101889:04510_1889-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Port Gibson, Mississippi | 1889 | sanborn04510_001 p1 [2]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.11"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"1532.4"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"4919.6"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-18T06:35:24Z","modified":"2026-10-18T06:35:24Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984pm:g3984pm_g045101889:04510_1889-0001__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984pm:g3984pm_g045101889:04510_1889-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1612.0,687.1 1612.0,660.0 1569.9,656.6 1552.2,174.5 1489.8,81.6 809.9,18.7 443.2,120.5 412.4,791.1 477.0,1384.6 731.3,1420.6 959.7,1791.5 1295.1,1866.0 1295.8,1912.0 1349.2,1912.0 1364.8,1661.2 1445.5,1666.0 1460.7,1153.1 1456.7,1152.8 1487.3,679.6 1612.0,687.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984pm:g3984pm_g045101889:04510_1889-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[430.1,604.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.9852936,31.9615287]}},{"type":"Feature","properties":{"resourceCoords":[430.1,1651.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.9860028,31.9595001]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984pm:g3984pm_g045101889:04510_1889-0002__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Port Gibson, Mississippi | 1889 | sanborn04510_001 p2 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.62"},{"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":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-18T06:35:24Z","modified":"2026-10-18T06:35:24Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984pm:g3984pm_g045101889:04510_1889-0002__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984pm:g3984pm_g045101889:04510_1889-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"124.8,1443.9 66.2,1448.6 105.8,1861.6 558.9,1868.8 640.4,1711.0 701.5,1213.5 712.0,1206.0 947.5,1206.0 1146.6,1200.0 1191.5,1111.6 1177.0,643.1 1216.5,634.6 1216.5,608.0 1340.2,608.0 1549.0,563.0 1544.0,98.9 1364.0,41.8 305.5,41.4 306.9,71.3 168.9,73.9 176.7,597.5 181.1,597.5 209.2,1163.5 119.9,1165.3 124.8,1443.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984pm:g3984pm_g045101889:04510_1889-0002__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1241.0,61.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.9807626,31.9600914]}},{"type":"Feature","properties":{"resourceCoords":[129.0,1687.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.9842613,31.9580464]}}]}}]}