Sample
verify pkg:golang/github.com/google/uuid@v1.6.0
sha256:4df93b364a61df44739b0016143447a9b6d57bbfd0337d1bde771886fd4b42c0
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
- 2026-08-19T10:57:41Z
Contract
- assert uuid.NewHash generates deterministic RFC4122 UUID for given hash function, namespace and data
- assert uuid.NewHash produces identical output to uuid.NewMD5 when using md5.New() and version 3
- assert uuid.NewHash produces identical output to uuid.NewSHA1 when using sha1.New() and version 5
- assert uuid.NewHash supports custom cryptographic hash functions like sha256.New() and sha512.New() with RFC4122 variant
- assert uuid.NewHash correctly masks and encodes the requested version in the resulting UUID
- assert distinct data or distinct namespaces produce distinct UUIDs with uuid.NewHash
- assert uuid.NewHash handles empty data without panicking
Files
- PROMPT.md
- csx.json
- go.mod
- go.sum
- spec.json
- test/contract.go
Origin Seeder
anonymous