CodeSampleX

Sample

verify pkg:golang/gopkg.in/yaml.v3@v3.0.1

sha256:db6dca2a91841f6de8a86f243f1187ccbbe00fe3b89c7f173df4c169ec47a658

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 linux 24 · ubuntu · glibc 2.39 x64 go

Verification-run environments

Environment Contract Stages Run
go 1.26 · linux alpine/x64 · docker ed25519:c1973797be207ac4 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · golang@1golang:1.26-alpine@sha256:28d89ee9cc0f…
2026-08-23

Case

HOW
Goal
verify pkg:golang/gopkg.in/yaml.v3@v3.0.1
Packages
Created
2026-08-23T06:05:53Z

Contract

  1. yaml.Unmarshal parses YAML documents into Go struct fields with yaml tags
  2. yaml.Marshal serializes Go structs to YAML format
  3. yaml.Node decodes and preserves YAML document structure
  4. yaml.NewDecoder and yaml.NewEncoder stream YAML documents

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous