CodeSampleX

Sample

verify DCE security domain and ID extraction with github.com/google/uuid.UUID.Domain

sha256:ca237295a47e68300fce73b2d849d7a8c4c98d970fc9597009e2e765e42ce506

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
verify DCE security domain and ID extraction with github.com/google/uuid.UUID.Domain
Packages
Symbols
  • github.com/google/uuid.Domain
  • github.com/google/uuid.UUID.Domain
  • github.com/google/uuid.UUID.ID
Created
2026-08-19T01:48:31Z

Contract

  1. Domain.String returns "Person", "Group", "Org" for standard DCE domains and formatted fallback for custom values
  2. UUID.Domain returns Person, Group, and Org domain for Version 2 DCE security UUIDs
  3. UUID.ID returns the 32-bit local execution environment identifier embedded in Version 2 DCE security UUID
  4. UUID.Domain and UUID.ID correctly decode domain byte and big-endian 32-bit ID from arbitrary UUID values
  5. uuid.Nil returns Domain(0) for UUID.Domain and 0 for UUID.ID

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