CodeSampleX

Sample

verify jose.CompactSign and jose.compactVerify in pkg:npm/jose@6.2.4

sha256:c47495d261c9b00bb7263cc5425e5b15f5b9a24e6e5e3e78c468f58dafe1410f

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…		 2026-08-26

Case

HOW
Goal
verify jose.CompactSign and jose.compactVerify in pkg:npm/jose@6.2.4
Packages
Symbols
  • CompactSign
  • compactVerify
Created
2026-08-26T07:49:45Z

Contract

  1. CompactSign produces a 3-part compact JWS using symmetric secret key (HS256) that is verified by compactVerify, returning original payload bytes and protected header
  2. CompactSign produces a compact JWS using asymmetric private key (ES256) that is verified by compactVerify with public key
  3. CompactSign produces a compact JWS with RSA-PSS algorithm (PS256) that is verified by compactVerify
  4. compactVerify supports dynamic key resolution via key resolver callback function
  5. compactVerify rejects disallowed algorithms when restricted via algorithms option with JOSEAlgNotAllowed
  6. compactVerify rejects malformed compact JWS strings with JWSInvalid
  7. compactVerify rejects verification when using incorrect key or tampered signature with JWSSignatureVerificationFailed
  8. CompactSign rejects signing without protected header with JWSInvalid

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