Sample
verify pkg:golang/github.com/google/uuid@v1.6.0
sha256:28b892f120d39891330c997f91dd29c0c0139ffd4438670d5c637335ad9938ca
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
- 2026-08-18T21:54:08Z
Contract
- assert uuid.New, uuid.NewRandom, and uuid.NewString generate RFC 4122 version 4 random UUIDs with correct version and variant bits
- assert uuid.Validate and uuid.Parse accept standard hyphenated, unhyphenated hex, URN, and braced UUID representations and reject invalid formats
- assert uuid.NewSHA1 and uuid.NewMD5 generate deterministic RFC 4122 version 5 and version 3 name-based UUIDs across standard namespaces
- assert uuid.NewUUID and uuid.NewV6 generate time-based version 1 and time-ordered version 6 UUIDs with valid timestamps and node identifiers
- assert uuid.UUID implements binary, text, and JSON serialization with MarshalBinary, MarshalText, and json.Marshal
- assert uuid.UUID and uuid.NullUUID implement database/sql driver.Valuer and sql.Scanner for SQL and JSON null handling
Files
- PROMPT.md
- csx.json
- go.mod
- go.sum
- main.go
- spec.json
- test/contract.go
Origin Seeder
anonymous