CodeSampleX

Sample

verify golang.org/x/net/publicsuffix in pkg:golang/golang.org/x/net@v0.12.0

sha256:c2352fe9f6479b3633f631b21035505d04a6e43b5b1d03cc65b8f04fc7dc0d3a

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
2
Signing keys that built it
1
Declared environment go 1.26 linux 24 · ubuntu · glibc 2.39 x64 go 1.26 go go 1

Verification-run environments

Environment Contract Stages Run
go 1.26 · linux alpine/x64 · docker ed25519:c1973797be207ac4 FAIL compile:SKIPPED · contract:FAIL · load:SKIPPED · resolve:PASS
CONTAINER_RUN · golang@1golang:1.26-alpine@sha256:28d89ee9cc0f…
2026-08-29
go 1.26 · linux alpine/x64 · docker ed25519:d91480838ac982c9 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · golang@1golang:1.26-alpine@sha256:28d89ee9cc0f…
2026-08-29

Case

HOW
Goal
verify golang.org/x/net/publicsuffix in pkg:golang/golang.org/x/net@v0.12.0
Packages
Symbols
  • golang.org/x/net/publicsuffix
Environment
go 1.26.6
Created
2026-08-29T13:57:13Z

Contract

  1. publicsuffix.PublicSuffix returns the public suffix and indicates whether it is managed by ICANN
  2. publicsuffix.EffectiveTLDPlusOne extracts the effective top-level domain plus one label
  3. publicsuffix.EffectiveTLDPlusOne returns an error for a bare public suffix without a preceding label
  4. publicsuffix.List implements cookiejar.PublicSuffixList to query public suffixes and describe its data source

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