CodeSampleX

Sample

verify pkg:golang/golang.org/x/sys@v0.10.0

sha256:c23ba0d0ac10fd047445eb5bb92c32fa88750202a0f01caf8c8d68c950a6b6f1

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@v0.10.0
Packages
Created
2026-08-27T12:16:17Z

Contract

  1. unix.Getpagesize returns a positive page size that is a power of 2
  2. unix.Sysinfo retrieves system statistics with positive uptime and total RAM
  3. unix.Uname retrieves system name and populates Utsname struct with Linux sysname
  4. unix.Getrlimit retrieves valid file descriptor limits where soft limit does not exceed hard limit

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