CodeSampleX

Sample

configure network interface for version 1 UUID generation with github.com/google/uuid SetNodeInterface and NodeInterface

sha256:b082515c26cdb96fd0d91584c78b8783727b2a95da39c39fcfbe52f6c347be4f

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
configure network interface for version 1 UUID generation with github.com/google/uuid SetNodeInterface and NodeInterface
Packages
Symbols
  • github.com/google/uuid.NodeInterface
  • github.com/google/uuid.SetNodeInterface
Created
2026-08-19T09:24:38Z

Contract

  1. uuid.SetNodeInterface with empty string resets to default interface selection and returns true
  2. uuid.SetNodeInterface returns false for non-existent network interface names
  3. uuid.NodeInterface returns user when node ID is set via SetNodeID
  4. uuid.SetNodeInterface configures node ID from named network interface hardware address
  5. uuid.NewUUID generates valid Version 1 UUID containing configured interface or node ID

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous