Sample
verify pkg:golang/github.com/google/uuid@v1.6.0
sha256:029fb476e0725b4a5cdc0331e7fd9cf76422847e207aafcf5e3c46c98ed6f58e
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
windows 11 x64 go
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
- Created
- 2026-08-19T05:10:47Z
Contract
- uuid.New generates a valid non-nil UUIDv4 with RFC4122 variant
- uuid.NewString returns a 36-character canonical UUID string
- uuid.Parse parses valid canonical UUID string and rejects malformed strings
- uuid.FromBytes creates a UUID from a 16-byte slice
- uuid.Validate returns nil for valid UUID string and error for invalid string
- uuid.NullUUID handles valid and null states for SQL driver and JSON marshaling
Files
- PROMPT.md
- csx.json
- go.mod
- go.sum
- sample.go
- spec.json
- test/contract.go
Origin Seeder
anonymous