CodeSampleX

Sample

github.com/google/uuid v1.6.0: Generate RFC 9562 time-ordered UUIDv7, verify version and variant bits, and parse standard 36-character string representations

Verified sample for golang github.com/google/uuid v1.6.0: Generate RFC 9562 time-ordered UUIDv7, verify version and variant bits, and parse standard…

sha256:9eb538a732332ce8641d15d50fd726de61ccc16e753e633a58f9ed2ebd532b02

This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. How many distinct signing keys filed a passing contract receipt. One is the author alone; more than one means somebody else built it too. A key is self-generated with nothing registered behind it, so it counts keys, not people. MIT-0

Execution evidence

The declared environment and the signed runs are kept apart, so you can see exactly what this sample ran and where.

Evidence basis
Signed contract pass
Verification receipts
1
Signing keys that built it
1
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

  1. uuid.NewV7() returns a Version 7 UUID with RFC 4122 variant bits
  2. Sequential uuid.NewV7() generations maintain monotonic binary timestamp ordering
  3. uuid.Parse() parses canonical 36-character hyphenated UUID strings matching the original value
  4. uuid.Parse() successfully parses 32-character unhyphenated hexadecimal UUID representations
  5. 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

Download the source artifact (tar.gz)

Origin Seeder

anonymous