Sample
verify pkg:golang/github.com/google/uuid@v1.6.0
sha256:32f5208139e5df39b2058196103cff7d1f170cd79f478feab45eb1fbfc3e5575
Publication state. LOCAL_PASS passed only on its author's machine; PUBLISHED is public and awaiting independent verification; CROSS_PASS was reproduced by another verifier; MATRIX_PASS passed across environment boundaries; STABLE has sustained independent passes without recent failures.
Evidence strength. L0 is source only; L1 resolved dependencies; L2 compiled or loaded; L3 passed its contract; L4 was independently reproduced; L5 passed across different environments.
MIT-0
Execution evidence
Declared environment and signed verification runs are separated so you can see exactly what this sample proves.
- Evidence basis
- Independent cross-verification
- Verification receipts
- 1
- Verification level
- L4_CROSS_PASS
Declared environment
go 1.26 windows 11 x64 go 1.26 go go 1
Verification-run environments
| Environment | Contract | Stages | Run |
|---|---|---|---|
| go 1.26 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · golang@1 |
2026-08-19 |
Case
HOW- Goal
- verify pkg:golang/github.com/google/uuid@v1.6.0
- Packages
- Environment
- go 1.26.5
- Created
- 2026-08-19T06:36:53Z
Contract
- uuid.New generates a non-nil RFC 4122 v4 UUID with Version 4 and Variant RFC4122
- uuid.NewString generates a valid 36-character RFC 4122 v4 UUID string
- uuid.Parse successfully parses standard canonical UUID strings and returns error for invalid input
- uuid.Validate accepts valid UUID formatting and rejects malformed strings
- uuid.MustParse parses valid UUID string and panics on invalid input
- uuid.NewRandom generates a cryptographically secure v4 UUID
- uuid.NewV7 creates a time-ordered v7 UUID with Version 7 and Variant RFC4122
- uuid.FromBytes parses a 16-byte slice and rejects incorrect byte slice lengths
- uuid.NullUUID correctly handles SQL scanning and JSON serialization for valid and null values
Files
- PROMPT.md
- csx.json
- go.mod
- go.sum
- main.go
- spec.json
- test/contract.go
Origin Seeder
anonymous