Sample
Parse canonical GUID strings strictly with FromString, and convert between standard RFC 4122 big-endian and Windows native mixed-endian binary formats via ToArray and ToWindowsArray.
sha256:3c42fd3ae72ba261fdb79897ef55cf21d25e5d63814a2fccd309f871f549ef06
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
- 2
- Verification level
- L4_CROSS_PASS
Declared environment
go linux x64 go go go
Verification-run environments
| Environment | Contract | Stages | Run |
|---|---|---|---|
| go 1.26 · linux alpine/x64 · docker ed25519:d91480838ac982c9 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · golang@1 |
2026-08-19 |
| 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
- Parse canonical GUID strings strictly with FromString, and convert between standard RFC 4122 big-endian and Windows native mixed-endian binary formats via ToArray and ToWindowsArray.
- Packages
- Symbols
-
- guid.FromString
- guid.GUID.ToArray
- guid.GUID.ToWindowsArray
- guid.FromArray
- guid.FromWindowsArray
- Environment
- go
- Created
- 2026-08-19T13:29:58Z
Contract
- guid.FromString strictly requires canonical 36-character hyphenated GUID strings, rejecting registry brace-enclosed formats and unhyphenated 32-character hex strings.
- guid.GUID.ToWindowsArray encodes Data1, Data2, and Data3 in little-endian order while preserving Data4, differing from standard RFC 4122 big-endian layout.
- guid.GUID.ToArray encodes all 16 bytes in RFC 4122 big-endian network byte order.
- guid.FromWindowsArray decodes Windows mixed-endian byte arrays into a structured GUID, roundtripping with ToWindowsArray.
- guid.FromArray decodes standard RFC 4122 big-endian byte arrays into a structured GUID, roundtripping with ToArray.
Files
- NOTES.md
- csx.json
- go.mod
- go.sum
- guid_test.go