CodeSampleX

Sample

verify github.com/mholt/acmez/v3.TLSALPN01ChallengeCert in pkg:golang/github.com/mholt/acmez/v3@v3.1.2

sha256:ca632ae003bfe0115c34bece54d1a0ec76c2614477661f474f6baf586d5b463c

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/mholt/acmez/v3.TLSALPN01ChallengeCert in pkg:golang/github.com/mholt/acmez/v3@v3.1.2
Packages
Symbols
  • github.com/mholt/acmez/v3.TLSALPN01ChallengeCert
Created
2026-08-28T01:08:15Z

Contract

  1. TLSALPN01ChallengeCert generates a non-nil self-signed tls.Certificate with Subject CommonName "ACME challenge" and DNS SAN matching the challenge identifier.
  2. TLSALPN01ChallengeCert attaches a critical acmeValidation-v1 extension (OID 1.3.6.1.5.5.7.1.31) containing the ASN.1-marshaled SHA-256 digest of KeyAuthorization.
  3. TLSALPN01ChallengeCert converts internationalized domain names (IDN) in the challenge identifier to ASCII punycode SAN.
  4. TLSALPN01ChallengeCert certificate successfully negotiates an in-memory TLS handshake using ACMETLS1Protocol ("acme-tls/1") ALPN.
  5. TLSALPN01ChallengeCert returns an error when provided with an invalid domain identifier.

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