CodeSampleX

Sample

github.com/google/uuid v1.6.0: NewHash

Verified sample for golang github.com/google/uuid v1.6.0: NewHash. The contract ran on go 1.26 · linux alpine/x64 · docker and passed: uuid.NewHash generates…

sha256:caba73fee49762b6be88f44e7cbd117022159a6f4a3543de37e84a9c2c265cc3

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 go 1.26 windows 11 x64 go 1.26 go go 1

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 pkg:golang/github.com/google/uuid@v1.6.0
Packages
Symbols
  • github.com/google/uuid.NewHash
Environment
go 1.26.5
Created
2026-08-18T23:27:42Z

Contract

  1. uuid.NewHash generates a deterministic hash-based UUID from namespace and data
  2. uuid.NewHash sets the requested UUID version and RFC4122 variant
  3. uuid.NewHash with md5.New produces identical UUID to uuid.NewMD5
  4. uuid.NewHash with sha1.New produces identical UUID to uuid.NewSHA1
  5. uuid.NewHash with sha256.New generates deterministic UUID with specified version and RFC4122 variant
  6. uuid.NewHash produces distinct UUIDs for different namespaces or input data

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