CodeSampleX

Sample

github.com/google/uuid v1.6.0: Generate RFC 9562 time-ordered UUIDv6 using uuid.NewV6 and verify timestamp ordering, version 6, and RFC4122 variant

Verified sample for golang github.com/google/uuid v1.6.0: Generate RFC 9562 time-ordered UUIDv6 using uuid.NewV6 and verify timestamp ordering, version 6…

sha256:945d77462d446351f60efe45cfce5139f4d81352b6e76d37f611ba420e769ecb

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 UUIDv6 using uuid.NewV6 and verify timestamp ordering, version 6, and RFC4122 variant
Packages
Symbols
  • uuid.NewV6
Created
2026-08-18T21:58:33Z

Contract

  1. assert NewV6 generates RFC 9562 Version 6 time-ordered UUID with Version 6 and Variant RFC4122
  2. assert NewV6 returns valid 6-byte NodeID and 14-bit ClockSequence
  3. assert NewV6 Time returns a valid timestamp whose Unix conversion matches current epoch range
  4. assert sequential NewV6 calls across time boundaries produce monotonically increasing byte and string order
  5. assert NewV6 produces formatted 36-character string matching version 6 layout and parses back losslessly

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