CodeSampleX

Sample

verify github.com/caddyserver/certmagic.SubjectQualifiesForCert in pkg:golang/github.com/caddyserver/certmagic@v0.23.0

sha256:bf0882e0d65be2be84c26fff318ec1a8f773590c41fca3af39d19fad82c75fd3

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…
2026-08-28

Case

HOW
Goal
verify github.com/caddyserver/certmagic.SubjectQualifiesForCert in pkg:golang/github.com/caddyserver/certmagic@v0.23.0
Packages
Symbols
  • github.com/caddyserver/certmagic.SubjectQualifiesForCert
Created
2026-08-28T02:57:47Z

Contract

  1. certmagic.SubjectQualifiesForCert accepts valid standard domain names, subdomains, and hostnames
  2. certmagic.SubjectQualifiesForCert accepts IPv4 addresses, IPv6 addresses, and localhost
  3. certmagic.SubjectQualifiesForCert accepts left-most wildcard domains (*.example.com) and exact single asterisk (*)
  4. certmagic.SubjectQualifiesForCert rejects empty strings and whitespace-only strings
  5. certmagic.SubjectQualifiesForCert rejects domain names with leading or trailing dots
  6. certmagic.SubjectQualifiesForCert rejects non-leftmost wildcard domains such as sub.*.example.com
  7. certmagic.SubjectQualifiesForCert rejects names containing invalid or forbidden special characters

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