CodeSampleX

Sample

verify pkg:golang/github.com/slackhq/nebula@v1.11.1

sha256:fe98391b44cda4ed1b4c3b3e4030e21c3e074cb8fc1e96c1ea9ed2e0c210205d

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…		 2026-08-27

Case

HOW
Goal
verify pkg:golang/github.com/slackhq/nebula@v1.11.1
Packages
Symbols
  • github.com/slackhq/nebula/cert.TBSCertificate
  • github.com/slackhq/nebula/cert.TBSCertificate.Sign
  • github.com/slackhq/nebula/cert.Certificate
  • github.com/slackhq/nebula/cert.Certificate.MarshalPEM
  • github.com/slackhq/nebula/cert.UnmarshalCertificateFromPEM
  • github.com/slackhq/nebula/cert.Certificate.VerifyPrivateKey
  • github.com/slackhq/nebula/cert.CAPool
  • github.com/slackhq/nebula/cert.NewCAPoolFromPEM
  • github.com/slackhq/nebula/cert.CAPool.VerifyCertificate
  • github.com/slackhq/nebula/cert.CAPool.BlocklistFingerprint
  • github.com/slackhq/nebula/cert.Certificate.Expired
  • github.com/slackhq/nebula/cert.CheckCAConstraints
Created
2026-08-27T14:50:22Z

Contract

  1. TBSCertificate.Sign creates and signs a root CA certificate when signer is nil
  2. Certificate.VerifyPrivateKey validates CA Ed25519 private key matches public key
  3. Certificate.MarshalPEM exports signed certificate to PEM format
  4. NewCAPoolFromPEM initializes a trusted CA pool from PEM certificate bytes
  5. TBSCertificate.Sign creates and signs a host certificate with the CA certificate
  6. UnmarshalCertificateFromPEM parses a PEM encoded Nebula certificate
  7. Certificate.VerifyPrivateKey validates host X25519 private key matches public key
  8. CAPool.VerifyCertificate validates a host certificate against trusted CA pool
  9. Certificate.Expired evaluates certificate validity outside NotBefore / NotAfter
  10. CheckCAConstraints and TBSCertificate.Sign reject child certificates violating CA network bounds
  11. CAPool.BlocklistFingerprint causes VerifyCertificate to reject blocklisted certificates

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous