CodeSampleX

Sample

verify pkg:golang/golang.org/x/sys@v0.29.0

sha256:263a95cfe984f190159d6890a1db47b876dbe21f9b8c0c41ecd55cc5ab8f0648

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 pkg:golang/golang.org/x/sys@v0.29.0
Packages
Created
2026-08-27T13:05:15Z

Contract

  1. unix.Pipe creates a unidirectional byte stream channel between two file descriptors
  2. unix.Pipe2 creates non-blocking file descriptor pairs with O_CLOEXEC and O_NONBLOCK flags
  3. unix.Sysinfo queries kernel system statistics with positive uptime and totalram
  4. unix.Dup duplicates an existing file descriptor to reference the same open file description

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