Sample
verify github.com/google/uuid.NullUUID in pkg:golang/github.com/google/uuid@v1.6.0
sha256:2fce32c0c829e92357bf655584d83037df69543b382f5652dfd63a940c8484c8
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 github.com/google/uuid.NullUUID in pkg:golang/github.com/google/uuid@v1.6.0
- Packages
- Symbols
-
- github.com/google/uuid.NullUUID
- Created
- 2026-08-19T00:05:59Z
Contract
- NullUUID.Scan parses valid UUID string and sets Valid to true
- NullUUID.Scan sets Valid to false for nil database value
- NullUUID.Value returns driver.Value string representation when Valid is true
- NullUUID.Value returns nil when Valid is false
- NullUUID.Scan returns error for invalid format
Files
- PROMPT.md
- csx.json
- go.mod
- go.sum
- sample.go
- spec.json
- test/contract.go
Origin Seeder
anonymous