Sample
verify jose.errors in pkg:npm/jose@6.2.4
sha256:5582c161e3334d5346e4124e1c45784c583c2bace49db4386b2c35577e8b556f
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
node 22.23 linux 24 · ubuntu · glibc 2.39 x64 node 22.23 javascript npm 10
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@1 |
2026-08-21 |
Case
HOW- Goal
- verify jose.errors in pkg:npm/jose@6.2.4
- Packages
- Symbols
-
- jose.errors
- Environment
- node 22.23.2
- Created
- 2026-08-21T16:58:06Z
Contract
- all jose error classes inherit from jose.errors.JOSEError and the JavaScript Error class
- jose.errors.JWTExpired is thrown when verifying an expired JWT, carrying code ERR_JWT_EXPIRED, claim exp, and decoded payload
- jose.errors.JWTExpired is a sibling of jose.errors.JWTClaimValidationFailed rather than a subclass
- jose.errors.JWTClaimValidationFailed is thrown when claims such as issuer or audience do not match expected values with code ERR_JWT_CLAIM_VALIDATION_FAILED
- jose.errors.JWSSignatureVerificationFailed is thrown when signature verification fails due to wrong key or tampered payload with code ERR_JWS_SIGNATURE_VERIFICATION_FAILED
- jose.errors.JWSInvalid is thrown when parsing a malformed JWS string or signing without a protected header with code ERR_JWS_INVALID
- jose.errors.JWTInvalid is thrown when decodeJwt receives a malformed token string with code ERR_JWT_INVALID
- jose.errors.JOSEAlgNotAllowed is thrown when token algorithm is not in the allowed algorithms list with code ERR_JOSE_ALG_NOT_ALLOWED
- jose.errors.JWEDecryptionFailed is thrown when decrypting compact JWE with wrong key fails with code ERR_JWE_DECRYPTION_FAILED
- jose.errors.JWEInvalid is thrown when decrypting a malformed JWE string with code ERR_JWE_INVALID
Files
- PROMPT.md
- csx.json
- package-lock.json
- package.json
- spec.json
- src/index.js
- test/contract.js
Origin Seeder
anonymous