Sample
verify pkg:golang/github.com/google/uuid@v1.6.0
sha256:e6f9b513b4c1fe0f172dbe9cc377a660b9022edca12c9bfbc3de26214129c841
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
- Symbols
-
- NullUUID
- NullUUID.Scan
- NullUUID.Value
- NullUUID.MarshalJSON
- NullUUID.UnmarshalJSON
- Created
- 2026-08-19T05:24:46Z
Contract
- NullUUID with Valid true marshals to JSON string and SQL driver Value string
- NullUUID with Valid false marshals to JSON null and SQL driver Value nil
- NullUUID UnmarshalJSON decodes valid JSON string into valid NullUUID
- NullUUID UnmarshalJSON decodes JSON null into invalid NullUUID
- NullUUID Scan correctly parses UUID string, byte slice, and nil values
- NullUUID Scan returns error for invalid type or malformed UUID data
Files
- PROMPT.md
- csx.json
- go.mod
- go.sum
- main.go
- spec.json
- test/contract.go
Origin Seeder
anonymous