{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn00331_004.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Pocahontas, Arkansas | 1933 | mapsnap generated fit (2026-09-23)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-23"},{"label":"run","value":"corpus-v1"},{"label":"pages","value":"3"},{"label":"placed","value":"3"},{"label":"unplaced","value":"0"},{"label":"fit sources","value":"georef 2, georef-snap 1"},{"label":"key map","value":"none"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd400m:g4004m:g4004pm:g003311933:00331_1933-0001/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Pocahontas, Arkansas | 1933 | sanborn00331_004 p1","metadata":[{"label":"streets","value":"12"},{"label":"intersections","value":"20"}],"created":"2026-09-23T13:52:59Z","modified":"2026-09-23T13:52:59Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd400m:g4004m:g4004pm:g003311933:00331_1933-0001/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd400m:g4004m:g4004pm:g003311933:00331_1933-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"314.7,1773.9 232.8,1652.0 -0.0,1650.2 -0.0,0.0 574.7,-0.0 574.7,-0.0 1613.0,-0.0 1613.0,1913.0 1359.2,1913.0 1363.2,1758.4 1077.5,1751.0 1075.8,1792.2 314.7,1773.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd400m:g4004m:g4004pm:g003311933:00331_1933-0001/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1083.0,1625.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.9675084,36.263332]}},{"type":"Feature","properties":{"resourceCoords":[633.0,1135.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.9682098,36.2657981]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd400m:g4004m:g4004pm:g003311933:00331_1933-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Pocahontas, Arkansas | 1933 | sanborn00331_004 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T13:52:59Z","modified":"2026-09-23T13:52:59Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd400m:g4004m:g4004pm:g003311933:00331_1933-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd400m:g4004m:g4004pm:g003311933:00331_1933-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,0.0 699.5,-0.0 865.7,236.7 1509.8,220.6 1530.8,1913.0 -0.0,1913.0 -0.0,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd400m:g4004m:g4004pm:g003311933:00331_1933-0002/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.97244528331787,36.265497423261756]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.96924605390377,36.263950112727066]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.97150602600136,36.26086918866156]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.97470525541546,36.26241649919625]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd400m:g4004m:g4004pm:g003311933:00331_1933-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Pocahontas, Arkansas | 1933 | sanborn00331_004 p3","metadata":[{"label":"streets","value":"12"},{"label":"intersections","value":"30"}],"created":"2026-09-23T13:52:59Z","modified":"2026-09-23T13:52:59Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd400m:g4004m:g4004pm:g003311933:00331_1933-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd400m:g4004m:g4004pm:g003311933:00331_1933-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,1913.0 -0.0,1913.0 -0.0,1850.8 88.4,1850.6 49.0,72.3 1001.1,88.0 1002.6,-0.0 1613.0,-0.0 1613.0,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd400m:g4004m:g4004pm:g003311933:00331_1933-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[369.0,769.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.9699023,36.2623376]}},{"type":"Feature","properties":{"resourceCoords":[369.0,95.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.969132,36.2633645]}}]}}]}