{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn08497_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Del Rio, Texas | 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":"2"},{"label":"unplaced","value":"2"},{"label":"fit sources","value":"georef-snap 1, georef 1"},{"label":"key map","value":"none"},{"label":"split sheets","value":"1 sheet(s) cut into 3 panels"},{"label":"unplaced pages","value":"p2__1 (tier 1, 29.35382,-100.91179 +/-287m); p2__2 (tier 1, 29.35694,-100.90295 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971900:08497_1900-0001/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Del Rio, Texas | 1900 | sanborn08497_001 p1","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.46"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:55:50Z","modified":"2026-10-18T13:55:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971900:08497_1900-0001/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971900:08497_1900-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"28.4,1264.2 65.8,72.4 1440.4,59.9 1528.3,124.1 1582.5,343.1 1602.6,344.6 1603.0,425.0 1612.0,426.0 1612.0,658.4 1579.0,657.5 1548.7,1849.9 95.8,1861.5 72.7,1844.5 28.4,1264.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971900:08497_1900-0001/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[73.0,681.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.90007303661751,29.358364943977893]}},{"type":"Feature","properties":{"resourceCoords":[73.0,1276.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.8999708574861,29.357243023750215]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971900:08497_1900-0002__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Del Rio, Texas | 1900 | sanborn08497_001 p2 [3]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.69"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"5056.0"},{"label":"split_canvas_y","value":"1302.0"},{"label":"split_canvas_w","value":"1396.0"},{"label":"split_canvas_h","value":"2090.0"}],"created":"2026-10-18T13:55:50Z","modified":"2026-10-18T13:55:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971900:08497_1900-0002__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971900:08497_1900-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1264.0,762.1 1286.7,762.8 1348.7,829.0 1470.9,744.6 1576.0,780.7 1581.3,401.9 1363.0,423.9 1327.9,359.9 1284.5,471.3 1264.0,469.6 1264.0,762.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971900:08497_1900-0002__3/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[1264.0,325.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-100.89667776517801,29.35951524023298]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,325.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-100.89587920390375,29.35957447957716]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,848.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-100.89577709919159,29.35853401996688]}},{"type":"Feature","properties":{"resourceCoords":[1264.0,848.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-100.89657566046586,29.3584747806227]}},{"type":"Feature","properties":{"resourceCoords":[1319.0,761.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.8964667,29.3586562]}}]}}]}