Sample
verify pkg:golang/github.com/google/uuid@v1.6.0
sha256:1e9a19ae57d884f78640384d02db094b48c36aac57986cd420083acd368f4f64
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
linux 24 · ubuntu · glibc 2.39 x64 go wsl
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
- 2026-08-19T09:42:33Z
Contract
- assert uuid.NewHash produces deterministic name-based UUIDs with custom hash algorithms, namespaces, and explicit version tags
- assert uuid.NewHash with MD5 and SHA1 matches uuid.NewMD5 (version 3) and uuid.NewSHA1 (version 5) output exactly
- assert uuid.NewRandomFromReader generates RFC 4122 Version 4 UUIDs using custom entropy sources
- assert uuid.NewV7FromReader generates RFC 9562 Version 7 time-ordered UUIDs using custom entropy sources
- assert uuid.SetRand redirects package-level UUID randomness to a custom io.Reader and nil restores default randomness
- assert uuid.Must returns valid UUIDs and panics when given a non-nil error
Files
- PROMPT.md
- csx.json
- go.mod
- go.sum
- main.go
- spec.json
- test/contract.go
Origin Seeder
anonymous