Sample
Convert raw byte slices, parse formatted byte sequences, and marshal binary/text representations with uuid.FromBytes, uuid.Must, uuid.ParseBytes, and uuid.MarshalBinary in google/uuid
sha256:263ff5e099274144065a3770758e5789c1847324fc904738d3dc8ab4a5d53582
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
- Convert raw byte slices, parse formatted byte sequences, and marshal binary/text representations with uuid.FromBytes, uuid.Must, uuid.ParseBytes, and uuid.MarshalBinary in google/uuid
- Packages
- Symbols
-
- uuid.FromBytes
- uuid.Must
- uuid.ParseBytes
- uuid.UUID.MarshalBinary
- uuid.UUID.MarshalText
- uuid.UUID.UnmarshalBinary
- uuid.UUID.UnmarshalText
- Created
- 2026-08-18T19:22:15Z
Contract
- assert FromBytes creates valid UUID from 16-byte slice and returns error on invalid length
- assert Must returns UUID when err is nil and panics when err is non-nil
- assert ParseBytes parses formatted byte slices and rejects invalid byte sequences
- assert MarshalBinary produces 16-byte raw slice and UnmarshalBinary restores original UUID or returns error on invalid length
- assert MarshalText produces canonical 36-byte ASCII representation and UnmarshalText parses text into UUID
Files
- PROMPT.md
- csx.json
- go.mod
- go.sum
- main.go
- spec.json
- test/contract.go
Origin Seeder
anonymous