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A fictional multilingual contact for checking Unicode decoding and round trips between legacy and current vCard versions. This member uses vCard 3.0 syntax.
A fictional multilingual contact for checking Unicode decoding and round trips between legacy and current vCard versions. This member uses vCard 4.0 syntax.
User JSON deliberately violating the schema five ways — negative case for validator error reporting.
JSON instance conforming to the Wave F user JSON Schema — positive validator test case.
Draft 2020-12 JSON Schema for a user object with email format and role enum — paired with valid/invalid instances.
A vCard 3.0 contact with name, email, phone, and address — for testing contact importers.
A 30-day daily weather forecast for one city — high/low temperature, condition, precipitation, wind, and humidity. Synthetic (seeded) data for testing weather widgets, chart tools, and time-series import.
The daily forecast as a JSON array — the format twin of the CSV, for import and charting tests.
A W3C Web App Manifest (JSON) with name, theme colours, and icon set — for testing PWA install prompts and manifest validators.
Documented HMAC webhook signature SAMPLE — no real secret, for verifier unit tests.
SAMPLE github push webhook JSON body for signature-verification and parser tests.
SAMPLE slack message webhook JSON body for signature-verification and parser tests.
SAMPLE stripe payment webhook JSON body for signature-verification and parser tests.
A weighted acyclic multigraph with two parallel source-to-router edges, checking multiplicity and floating-point weight preservation. This GEXF 1.3 member carries the same node IDs, edge IDs, directions and weights as its two format twins.
A weighted acyclic multigraph with two parallel source-to-router edges, checking multiplicity and floating-point weight preservation. This GraphML member carries the same node IDs, edge IDs, directions and weights as its two format twins.
A weighted acyclic multigraph with two parallel source-to-router edges, checking multiplicity and floating-point weight preservation. This JSON edge list member carries the same node IDs, edge IDs, directions and weights as its two format twins.
A CSV with 1000 columns and a handful of rows — a stress test for parsers, spreadsheet importers, and databases with column limits or per-row buffering assumptions. Deterministic (fixed seed).
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.
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