Find files, editable templates and browser test targets by what you need to make or test. The directory below is cut by format; the two collections under it cut the same library by subject and by workflow.
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The same 40 world cities as a GeoJSON FeatureCollection of Points (longitude, latitude order per RFC 7946), each with name, country, and population properties. The mapping twin of the CSV, for testing GeoJSON parsers and map renderers.
A curated world-cities dataset: 40 major cities with country, latitude, longitude, and population. A realistic geospatial fixture for testing map plots, geocoding, and CSV→GeoJSON conversion. GeoJSON twin included.
The same self-signed certificate under the conventional .crt extension (PEM-encoded), for testing trust-store importers and tools that key off the .crt extension. Sample only.
The binary DER encoding of the same certificate, for testing ASN.1/DER parsers, Java keystores, and DER-to-PEM converters. Published sample certificate, not a real identity.
A self-signed X.509 v3 certificate in PEM (Base64) encoding with a SAN and key-usage extensions, published sample material for testing certificate and TLS parsers. Not a real identity.
X12 837 professional claim batch for Juniper Fitness and Clinic Administration. One interchange, one functional group, one transaction set carrying all 16 claims and 18 service lines. The SE segment declares 225 segments from ST to SE inclusive, which is the count a receiver checks first. Every CLM02 equals the SV102 amounts below it, and the CLM02 values sum to 1,180.00 USD. Segments are terminated with a tilde and the file uses CRLF line endings, which is what an X12 interchange carries in practice.
X12 837 professional claim, single claim for Juniper Fitness and Clinic Administration. The same interchange structure carrying one claim, CLM-0006, with 2 service lines of 120.00 and 85.00 USD. CLM02 is 205.00, which is exactly those two SV102 amounts added. SE01 declares 27 segments.
