Sample
verify pkg:golang/github.com/google/uuid@v1.6.0
sha256:73c0c934fc547a37717719f9b9eedefe1d70aaee4dc5845058238736fb89e601
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
- 2026-08-18T21:51:08Z
Contract
- assert uuid.Parse, uuid.MustParse, and uuid.ParseBytes parse standard hyphenated, unhyphenated hex, URN, and braced UUID representations and return URN strings with URN
- assert uuid.UUID implements database/sql driver.Valuer and sql.Scanner, returning string driver.Value and scanning string, 16-byte slices, or nil while rejecting invalid types
- assert uuid.UUID implements encoding.BinaryMarshaler, encoding.BinaryUnmarshaler, encoding.TextMarshaler, and encoding.TextUnmarshaler for 16-byte binary and 36-byte text representations
- assert uuid.UUID serializes to and deserializes from JSON strings with json.Marshal and json.Unmarshal, rejecting malformed JSON
- assert uuid.New and uuid.NewRandom produce version 4 UUIDs with RFC4122 variant bits and non-nil values
Files
- PROMPT.md
- csx.json
- go.mod
- go.sum
- main.go
- spec.json
- test/contract.go
Origin Seeder
anonymous