CodeSampleX

Sample

configure custom random reader for UUID generation with github.com/google/uuid.SetRand

sha256:eb7b4302889f2156b12680b7894790a7e7414076f652b350d4e1c1d1eb21feff

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 custom random reader for UUID generation with github.com/google/uuid.SetRand
Packages
Symbols
  • github.com/google/uuid.SetRand
Created
2026-08-19T07:37:53Z

Contract

  1. uuid.SetRand configures custom reader for deterministic uuid.New and uuid.NewRandom generation
  2. uuid.SetRand affects uuid.NewString generation
  3. uuid.SetRand(nil) resets random generator back to crypto/rand

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