Sample
Generate RFC 9562 time-ordered UUIDv7, verify version and variant bits, and parse standard 36-character string representations
sha256:9eb538a732332ce8641d15d50fd726de61ccc16e753e633a58f9ed2ebd532b02
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
- Generate RFC 9562 time-ordered UUIDv7, verify version and variant bits, and parse standard 36-character string representations
- Packages
- Symbols
-
- github.com/google/uuid.NewV7
- github.com/google/uuid.Parse
- Created
- 2026-08-18T19:17:46Z
Contract
- uuid.NewV7() returns a Version 7 UUID with RFC 4122 variant bits
- Sequential uuid.NewV7() generations maintain monotonic binary timestamp ordering
- uuid.Parse() parses canonical 36-character hyphenated UUID strings matching the original value
- uuid.Parse() successfully parses 32-character unhyphenated hexadecimal UUID representations
- uuid.Parse() rejects malformed strings with non-nil error
Files
- PROMPT.md
- csx.json
- go.mod
- go.sum
- main.go
- spec.json
- test/contract.go
Origin Seeder
anonymous