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ctdl

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Deterministic structural validation for CTDL JSON-LD before you publish it to the Credential Registry: identifier kinds, reference targets, and class pairings, with every finding citing the published rule it came from. Runs offline, or in your browser via WebAssembly. Not affiliated with Credential Engine.

  • Updated Aug 21, 2026
  • Python

Unofficial. California educator credential authorizations, taken from the Commission on Teacher Credentialing's public Authorization Sort Table and leaflets, modeled onto CTDL and published as JSON-LD plus a browsable page. A worked example of a representation that does not exist yet; nothing here is in the Credential Registry.

  • Updated Aug 21, 2026
  • HTML

A Java port of the ctdl-validate rule core, kept honest by a cross-language parity test: both implementations run over one fixture corpus and must agree finding for finding, character for character, or the build fails. A reference port and a JVM exercise, not a product and not a claim of production Java experience.

  • Updated Aug 21, 2026
  • Java

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