CodeSampleX

Sample

verify certmagic FileStorage and Storage interface operations

sha256:a58e72a0b3a5261a3d22372971a69cd609879727194b41b2437d7962228ac950

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 certmagic FileStorage and Storage interface operations
Packages
Symbols
  • github.com/caddyserver/certmagic.FileStorage
  • github.com/caddyserver/certmagic.Storage
Created
2026-08-28T01:58:41Z

Contract

  1. certmagic.FileStorage implements the certmagic.Storage interface for persistent key-value storage
  2. certmagic.FileStorage.Store persists data and Exists reports true for existing keys and false for missing keys
  3. certmagic.FileStorage.Load retrieves stored byte content and returns fs.ErrNotExist for nonexistent keys
  4. certmagic.FileStorage.Stat returns valid KeyInfo with accurate Size, Modified timestamp, and IsTerminal flag
  5. certmagic.FileStorage.List lists stored keys under a prefix with both non-recursive and recursive traversal
  6. certmagic.FileStorage.Lock acquires an exclusive lock blocking concurrent lock attempts until Unlock
  7. certmagic.FileStorage.Delete removes a stored key and subsequent Exists returns false

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