{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn04440_003.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Centreville, Mississippi | 1900 | 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":"4"},{"label":"placed","value":"3"},{"label":"unplaced","value":"1"},{"label":"fit sources","value":"georef 3"},{"label":"key map","value":"none"},{"label":"split sheets","value":"2 sheet(s) cut into 4 panels"},{"label":"unplaced pages","value":"p1__1 (tier 4, 31.08947,-91.06539 +/-258m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044401900:04440_1900-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Centreville, Mississippi | 1900 | sanborn04440_003 p1 [2]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"11"},{"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":"2026-10-18T04:30:15Z","modified":"2026-10-18T04:30:15Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044401900:04440_1900-0001__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044401900:04440_1900-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1609.8,1369.3 1579.6,194.8 1501.8,61.4 1354.9,88.0 1232.8,33.4 118.7,30.8 46.3,96.2 41.0,1150.6 113.3,1288.2 112.5,1326.4 869.4,1459.6 870.5,1519.1 1393.8,1568.5 1387.5,1465.6 1394.5,1370.7 1609.8,1369.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044401900:04440_1900-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[858.0,885.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.0677062,31.0896865]}},{"type":"Feature","properties":{"resourceCoords":[858.0,55.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.0691876,31.0906784]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044401900:04440_1900-0002__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Centreville, Mississippi | 1900 | sanborn04440_003 p2 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.72"},{"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":"2026-10-18T04:30:15Z","modified":"2026-10-18T04:30:15Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044401900:04440_1900-0002__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044401900:04440_1900-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1554.8,191.6 1342.0,188.8 1333.3,282.4 1337.5,384.3 821.5,325.3 821.5,266.5 76.2,120.2 61.5,472.8 122.0,427.4 133.0,522.2 124.8,683.0 76.7,676.1 38.3,773.7 44.1,1525.4 134.9,1783.7 309.5,1867.5 1263.2,1856.0 1334.4,1287.1 1561.1,1211.4 1554.8,191.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044401900:04440_1900-0002__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[813.0,991.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.0653481,31.0881499]}},{"type":"Feature","properties":{"resourceCoords":[288.0,991.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.0660707,31.0873256]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044401900:04440_1900-0002__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Centreville, Mississippi | 1900 | sanborn04440_003 p2 [2]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.83"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"5358.0"},{"label":"split_canvas_y","value":"5144.0"},{"label":"split_canvas_w","value":"1094.0"},{"label":"split_canvas_h","value":"2508.0"}],"created":"2026-10-18T04:30:15Z","modified":"2026-10-18T04:30:15Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044401900:04440_1900-0002__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044401900:04440_1900-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1550.0,1737.1 1593.8,1692.5 1566.0,1439.1 1528.5,1327.1 1452.8,1299.7 1363.8,1319.6 1365.6,1860.7 1523.2,1901.4 1593.8,1835.0 1550.0,1737.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044401900:04440_1900-0002__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[1339.5,1286.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.06384982470405,31.09087928572702]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1286.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.06345563997021,31.09129399156973]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.06234677140385,31.090522033274524]}},{"type":"Feature","properties":{"resourceCoords":[1339.5,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.06274095613769,31.090107327431813]}},{"type":"Feature","properties":{"resourceCoords":[1359.5,1618.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.0632339,31.0905008]}}]}}]}