{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn03414_003.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Waterproof, Louisiana | 1938 | 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":"3"},{"label":"placed","value":"2"},{"label":"unplaced","value":"1"},{"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":"p1__3 (tier 4, 31.80434,-91.38523 +/-262m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014wm:g034141938:03414_1938-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Waterproof, Louisiana | 1938 | sanborn03414_003 p1 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.16"},{"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":"3202.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-17T21:31:18Z","modified":"2026-10-17T21:31:18Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014wm:g034141938:03414_1938-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014wm:g034141938:03414_1938-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"40.8,1771.9 41.7,1800.8 234.7,1826.8 234.2,1819.0 408.9,1808.6 602.5,1824.3 600.4,1782.2 721.2,1888.1 741.0,1861.7 748.9,1738.7 739.5,1235.7 775.5,1000.4 791.6,277.4 719.4,70.5 515.0,35.1 453.4,38.9 445.1,67.0 88.5,77.0 46.4,358.2 54.1,702.1 31.4,799.1 53.5,1761.7 40.8,1771.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014wm:g034141938:03414_1938-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[766.5,826.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.381711,31.805411]}},{"type":"Feature","properties":{"resourceCoords":[562.6,900.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.38258,31.8057365]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014wm:g034141938:03414_1938-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Waterproof, Louisiana | 1938 | sanborn03414_003 p1 [2]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.44"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"3202.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3250.0"},{"label":"split_canvas_h","value":"3836.0"}],"created":"2026-10-17T21:31:18Z","modified":"2026-10-17T21:31:18Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014wm:g034141938:03414_1938-0001__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014wm:g034141938:03414_1938-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1570.1,158.4 1453.0,48.5 1453.7,90.6 1260.9,68.1 1086.2,72.5 1086.5,80.3 894.6,47.5 894.7,18.7 840.9,59.0 815.1,155.0 819.0,919.9 986.5,950.0 1445.9,943.0 1519.6,862.5 1560.5,864.9 1539.9,820.1 1577.0,334.6 1549.4,184.2 1570.1,158.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014wm:g034141938:03414_1938-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[800.5,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.38712236980155,31.805020697005467]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.38446355164227,31.803005926728403]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,959.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.38726557939901,31.800345827350323]}},{"type":"Feature","properties":{"resourceCoords":[800.5,959.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.38992439755829,31.802360597627388]}},{"type":"Feature","properties":{"resourceCoords":[1451.1,772.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.387249,31.801266]}}]}}]}