CodeSampleX

Sample

generate time-based UUID v1 with uuid.NewUUID

sha256:457f9ee94aac4878ff4214516fe4c9c60d77bfc7cb0de60d1c6f72232194ef97

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 windows 11 x64 go

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 time-based UUID v1 with uuid.NewUUID
Packages
Symbols
  • NewUUID
Created
2026-08-18T21:07:45Z

Contract

  1. uuid.NewUUID returns non-nil UUID v1 without error
  2. uuid.NewUUID returns UUID with Version 1 and RFC4122 variant
  3. uuid.NewUUID contains valid time component extractable via Time method
  4. uuid.NewUUID contains valid 6-byte node ID extractable via NodeID method
  5. uuid.Parse successfully parses generated UUID v1 string back to original UUID

Files

  • PROMPT.md
  • csx.json
  • go.mod
  • go.sum
  • main.go
  • spec.json
  • test/main.go

Download the source artifact (tar.gz)

Origin Seeder

anonymous