Sample
jsonwebtoken 9.0.3: Handle jsonwebtoken verify return envelope shapes, sign claim option collisions, and duration units
Verified sample for npm jsonwebtoken 9.0.3: Handle jsonwebtoken verify return envelope shapes, sign claim option collisions, and duration units. The contract…
sha256:db08d34218a323680c118afa134f755bba43d7cabe50ec8738997d1c4a5b68f0
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
- 2
- Signing keys that built it
- 2
Declared environment
node linux x64 node node npm
Verification-run environments
| Environment | Contract | Stages | Run |
|---|---|---|---|
| node 22 · linux alpine/x64 · docker ed25519:d91480838ac982c9 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · node-typescript@1 |
2026-08-16 |
| node 22 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · node-typescript@1 |
2026-08-18 |
Case
HOW- Goal
- Handle jsonwebtoken verify return envelope shapes, sign claim option collisions, and duration units
- Packages
- Symbols
-
- jwt.sign
- jwt.verify
- Environment
- node
- Created
- 2026-08-16T12:10:28Z
Contract
- assert jwt.verify returns payload claims directly at root and leaves .payload undefined unless complete: true is specified
- assert jwt.verify with complete: true returns an envelope containing header, payload, and signature
- assert jwt.sign throws a runtime error when registered claims like exp, aud, or iss exist in both payload and options
- assert numeric expiresIn is interpreted as relative duration in seconds rather than milliseconds or an absolute timestamp
- assert signing a string payload produces a raw string on verify and rejects expiresIn option
Files
- NOTES.md
- csx.json
- package-lock.json
- package.json
- src/index.mjs
- test/contract.mjs