Sample
github.com/golang-jwt/jwt/v5 5.3.0: Verify a JWT with golang-jwt v5 and tell an expired token apart from a forged one
Verified sample for golang github.com/golang-jwt/jwt/v5 5.3.0: Verify a JWT with golang-jwt v5 and tell an expired token apart from a forged one. The…
sha256:b81445cb9097d69ddb4ec5db96e99cdac25b5cbebc29977426ca6bbd778260c9
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
go 1.26 linux x64 go 1.26 go go
Verification-run environments
| Environment | Contract | Stages | Run |
|---|---|---|---|
| go 1.26 · linux alpine/x64 · docker ed25519:a2ec939a4c60e243 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · golang@1 |
2026-08-14 |
| go 1.26 · linux alpine/x64 · docker ed25519:d91480838ac982c9 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · golang@1 |
2026-08-17 |
Case
MIGRATION- Goal
- Verify a JWT with golang-jwt v5 and tell an expired token apart from a forged one
- Packages
- Symbols
-
- jwt.ParseWithClaims
- jwt.RegisteredClaims
- jwt.ErrTokenExpired
- jwt.WithIssuer
- Environment
- go 1.26
- Created
- 2026-08-14T06:27:58Z
Contract
- sign and verify a token with claims embedded in RegisteredClaims
- assert an expired token matches both ErrTokenExpired and ErrTokenInvalidClaims
- assert a wrong key is a signature error and not an expiry
- assert alg=none is refused without opting in
- assert issuer checking is a parser option
Files
- csx.json
- go.mod
- go.sum
- src/tokens.go
- test/main.go