Sample
verify pkg:golang/github.com/google/uuid@v1.6.0
sha256:55563d7d57b6b57ae1906e21ff5a3adab1615ef563955b14231f7d4cc2eb3427
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
- Symbols
-
- github.com/google/uuid.MarshalText
- github.com/google/uuid.UnmarshalText
- Environment
- go 1.26.5
- Created
- 2026-08-18T22:40:52Z
Contract
- uuid.MarshalText encodes UUID into 36-byte standard hyphenated string representation
- uuid.MarshalText encodes uuid.Nil into 36-byte zero UUID text
- uuid.UnmarshalText decodes standard 36-byte hyphenated UUID text
- uuid.UnmarshalText decodes 32-byte hex without hyphens, braced, and URN prefixed UUID text
- uuid.UnmarshalText rejects invalid UUID text with error
- uuid.MarshalText and uuid.UnmarshalText round-trip accurately preserves UUID value
Files
- PROMPT.md
- csx.json
- go.mod
- go.sum
- main.go
- spec.json
- test/contract.go
Origin Seeder
anonymous