CodeSampleX

Sample

Generate and inspect DCE Security Version 2 UUIDs for Person, Group, and Org domains in google/uuid

sha256:ba3f251ea744f59cac7b3b0e4546182eb61f8e1a636d840c3350076b062b85af

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 and inspect DCE Security Version 2 UUIDs for Person, Group, and Org domains in google/uuid
Packages
Symbols
  • NewDCEGroup
  • NewDCEPerson
  • NewDCESecurity
Created
2026-08-19T08:26:37Z

Contract

  1. assert uuid.NewDCESecurity creates a Version 2 UUID with RFC4122 variant for specified domain and local ID
  2. assert uuid.NewDCEPerson creates a Version 2 UUID with Person domain and the caller's POSIX UID
  3. assert uuid.NewDCEGroup creates a Version 2 UUID with Group domain and the caller's POSIX GID
  4. assert UUID.Domain returns the expected Domain constant (Person, Group, Org) and UUID.ID returns the embedded 32-bit local ID
  5. assert UUID.Time extracts timestamp and UUID.NodeID returns valid 6-byte node identifier

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous