CodeSampleX

Sample

github.com/google/uuid v1.6.0: generate UUIDv4 from custom reader with github.com/google/uuid.NewRandomFromReader

Verified sample for golang github.com/google/uuid v1.6.0: generate UUIDv4 from custom reader with github.com/google/uuid.NewRandomFromReader. The contract…

sha256:c569660ae1f25f8d752f47a1a4210bc8ff5fdb09b9c39a59b1a41e670f816d5f

This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. How many distinct signing keys filed a passing contract receipt. One is the author alone; more than one means somebody else built it too. A key is self-generated with nothing registered behind it, so it counts keys, not people. MIT-0

Execution evidence

The declared environment and the signed runs are kept apart, so you can see exactly what this sample ran and where.

Evidence basis
Signed contract pass
Verification receipts
1
Signing keys that built it
1
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 UUIDv4 from custom reader with github.com/google/uuid.NewRandomFromReader
Packages
Symbols
  • github.com/google/uuid.NewRandomFromReader
Created
2026-08-19T03:19:03Z

Contract

  1. uuid.NewRandomFromReader generates valid version 4 UUID with RFC4122 variant from custom reader
  2. uuid.NewRandomFromReader returns deterministic UUID when given deterministic byte source
  3. uuid.NewRandomFromReader returns an error when the reader fails or returns insufficient bytes

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous