{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn03405_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Sulphur, Louisiana | 1919 | 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":"5"},{"label":"placed","value":"2"},{"label":"unplaced","value":"3"},{"label":"fit sources","value":"georef 2"},{"label":"key map","value":"none"},{"label":"split sheets","value":"2 sheet(s) cut into 5 panels"},{"label":"unplaced pages","value":"p1__2 (tier 4, 30.23664,-93.37768 +/-179m); p2__2 (tier 2, 30.23658,-93.37761 +/-100m); p2__3 (tier 2, 30.23658,-93.37761 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034051919:03405_1919-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Sulphur, Louisiana | 1919 | sanborn03405_001 p1 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.74"},{"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":"2026-10-22T13:02:46Z","modified":"2026-10-22T13:02:46Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034051919:03405_1919-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034051919:03405_1919-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"286.8,1854.8 287.2,1823.5 751.1,1822.5 1612.0,1825.1 1612.0,1735.7 1594.2,1699.3 1541.8,98.3 1100.7,22.4 50.5,28.4 58.0,897.5 580.3,901.5 613.4,1177.2 580.3,1299.0 580.3,1307.5 578.0,1307.5 576.1,1314.5 69.0,1324.9 29.1,1795.3 286.8,1854.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034051919:03405_1919-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1050.0,875.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.3774621,30.2383877]}},{"type":"Feature","properties":{"resourceCoords":[1050.0,1823.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.3774457,30.2366219]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034051919:03405_1919-0002__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Sulphur, Louisiana | 1919 | sanborn03405_001 p2 [1]","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"14"},{"label":"confidence","value":"0.92"},{"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":"2026-10-22T13:02:46Z","modified":"2026-10-22T13:02:46Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034051919:03405_1919-0002__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034051919:03405_1919-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"434.6,1673.4 434.7,1684.4 489.9,1839.8 761.2,1874.7 800.4,1394.3 800.3,1379.3 801.6,1379.3 801.9,1376.3 1278.0,1373.1 1278.3,1375.3 1283.2,1375.3 1283.2,1425.1 1317.3,1768.5 1559.5,1847.4 1537.0,660.8 1607.7,264.8 1525.8,67.5 1364.6,61.3 1339.7,12.3 1340.0,100.7 469.2,110.8 1.0,118.6 1.0,150.5 68.6,165.1 64.0,1674.2 430.2,1671.8 430.8,1673.5 434.6,1673.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034051919:03405_1919-0002__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[270.0,863.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.3785253,30.2352356]}},{"type":"Feature","properties":{"resourceCoords":[1280.0,863.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.3763726,30.2352233]}}]}}]}