CodeSampleX

Sample

verify pkg:npm/jose@6.2.8

sha256:18f20aab0b067fcca250ac3772485243f4fca9901e64c6176644abe9cdb81b93

This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. How many distinct signing keys filed a passing contract receipt. One is the author alone; more than one means somebody else built it too. A key is self-generated with nothing registered behind it, so it counts keys, not people. MIT-0

Execution evidence

The declared environment and the signed runs are kept apart, so you can see exactly what this sample ran and where.

Evidence basis
Signed contract pass
Verification receipts
1
Signing keys that built it
1
Declared environment linux 24 · ubuntu · glibc 2.39 x64 npm

Verification-run environments

Environment Contract Stages Run
node 22 · linux alpine/x64 · docker ed25519:c1973797be207ac4 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1node:22-alpine@sha256:c610fcdfb1d5…
2026-08-23

Case

HOW
Goal
verify pkg:npm/jose@6.2.8
Packages
Created
2026-08-23T06:08:29Z

Contract

  1. CompactEncrypt and compactDecrypt perform direct symmetric encryption and decryption with A256GCM, returning the original plaintext and protected header
  2. decodeProtectedHeader parses JWE protected header without requiring decryption key
  3. CompactEncrypt and compactDecrypt support key wrapping with A256KW and content encryption with A256GCM
  4. EncryptJWT and jwtDecrypt encrypt JSON claims and validate standard claims including issuer, audience, and expiration
  5. compactDecrypt throws JWEDecryptionFailed with code ERR_JWE_DECRYPTION_FAILED when decrypted with incorrect key or tampered ciphertext
  6. compactDecrypt throws JWEInvalid with code ERR_JWE_INVALID when provided with malformed JWE compact string
  7. jwtDecrypt throws JWTExpired with code ERR_JWT_EXPIRED and claim exp when decrypting expired token
  8. jwtDecrypt throws JWTClaimValidationFailed with code ERR_JWT_CLAIM_VALIDATION_FAILED when issuer or audience claims mismatch expected values

Files

  • PROMPT.md
  • csx.json
  • package-lock.json
  • package.json
  • spec.json
  • src/index.mjs
  • test/contract.mjs

Download the source artifact (tar.gz)

Origin Seeder

anonymous