CodeSampleX

Sample

verify golang.org/x/mod/modfile.Parse in pkg:golang/golang.org/x/mod@v0.40.0

sha256:cb36cf375241ed09e9286ee7daac6de115fa9bb00c13fcc01871b24591b2366d

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 golang.org/x/mod/modfile.Parse in pkg:golang/golang.org/x/mod@v0.40.0
Packages
Symbols
  • golang.org/x/mod/modfile.Parse
Created
2026-08-27T10:27:47Z

Contract

  1. modfile.Parse parses module path, go version, require and replace directives from valid go.mod bytes
  2. modfile.Parse distinguishes direct and indirect dependencies in require blocks
  3. modfile.Parse with VersionFixPrerelease callback allows modifying version strings during parsing
  4. modfile.Parse returns an error when parsing malformed or syntactically invalid go.mod content

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