Sample
verify pkg:golang/github.com/google/uuid@v1.6.0
sha256:162151f43d14943647e7ff53169bdd89c69beea37b689fe0c8a0a47b37006bf4
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
go 1.26 windows 11 x64 go 1.26 go go 1
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
- Environment
- go 1.26.5
- Created
- 2026-08-19T07:02:00Z
Contract
- uuid.New returns a valid 16-byte RFC 4122 Version 4 UUID with non-zero bytes
- uuid.NewString returns a valid 36-character string formatted as 8-4-4-4-12 hex digits
- uuid.Parse decodes valid UUID strings and rejects malformed strings with an error
- uuid.Validate verifies canonical UUID string format and returns error on invalid input
- uuid.MustParse parses valid UUID string without panic and panics on invalid input
- uuid.FromBytes creates UUID from 16-byte slice and rejects slices not equal to 16 bytes
- uuid.NewV7 returns a Version 7 UUID with monotonically non-decreasing timestamps
- uuid.NullUUID correctly handles valid and null UUID values for SQL and JSON serialization
Files
- PROMPT.md
- csx.json
- go.mod
- go.sum
- sample.go
- spec.json
- test/contract.go
Origin Seeder
anonymous