Sample
verify module.Check in pkg:golang/golang.org/x/mod@v0.40.0
sha256:a9b0e53206f46413fe98c8fd02698478e2cbf5aeb7a925498d9312b19956c9bb
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 module.Check in pkg:golang/golang.org/x/mod@v0.40.0
- Packages
- Symbols
-
- module.Check
- Created
- 2026-08-27T13:57:52Z
Contract
- module.Check returns nil for a valid module path and semantic version
- module.Check returns nil for major version >= 2 when path includes the matching /vN suffix
- module.Check returns InvalidVersionError when major version >= 2 is used without a matching /vN path suffix
- module.Check returns InvalidVersionError when version string is not a semantic version
- module.Check returns InvalidPathError when module path contains invalid syntax such as a leading dash
- module.Check returns InvalidPathError when module path is empty
- module.Check returns InvalidPathError when module path contains an invalid /v0 major version suffix
Files
- PROMPT.md
- csx.json
- go.mod
- go.sum
- main.go
- spec.json
- test/contract.go
Origin Seeder
anonymous