{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn02371_018.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Indianapolis, Indiana | 1950 | key map | mapsnap generated fit (2026-09-22)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-22"},{"label":"run","value":"corpus-v1"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195004A:02371_04A_1950-0000/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_018 p0","metadata":[{"label":"streets","value":"204"},{"label":"intersections","value":"1308"}],"created":"2026-09-22T08:58:46Z","modified":"2026-09-22T08:58:46Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195004A:02371_04A_1950-0000/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195004A:02371_04A_1950-0000","type":"ImageService3","width":1647,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1920.0 0.0,0.0 1647.0,0.0 1647.0,1920.0 -0.0,1920.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195004A:02371_04A_1950-0000/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1344.5,1422.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.063398,39.801075]}},{"type":"Feature","properties":{"resourceCoords":[342.8,1289.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1275232,39.8070715]}}]}}]}