Sample
verify github.com/caddyserver/certmagic.SubjectIsIP in pkg:golang/github.com/caddyserver/certmagic@v0.23.0
sha256:63d1ec4ba29d0c91fe6daa1ab9b268f4be1dfcc5e2bbda5b2ae4edfdf96934b9
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.SubjectIsIP in pkg:golang/github.com/caddyserver/certmagic@v0.23.0
- Symbols
-
- github.com/caddyserver/certmagic.SubjectIsIP
- Created
- 2026-08-28T02:50:27Z
Contract
- certmagic.SubjectIsIP returns true for valid IPv4 addresses including loopback and private IPs
- certmagic.SubjectIsIP returns true for valid IPv6 addresses including loopback and global unicast
- certmagic.SubjectIsIP returns false for domain names and single-label hostnames
- certmagic.SubjectIsIP returns false for invalid IP strings, port-annotated addresses, and empty strings
Files
- PROMPT.md
- csx.json
- go.mod
- go.sum
- main.go
- spec.json
- test/contract.go
Origin Seeder
anonymous