CodeSampleX

Sample

verify pkg:golang/golang.org/x/sys@v0.11.0

sha256:b2bcb7739e7fc350ae2891a24ff2632df5862ab167d73c2a82266da5fdce1043

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…		 2026-08-23

Case

HOW
Goal
verify pkg:golang/golang.org/x/sys@v0.11.0
Packages
Symbols
  • golang.org/x/sys/unix.Pipe
  • golang.org/x/sys/unix.NsecToTimeval
  • golang.org/x/sys/unix.TimevalToNsec
  • golang.org/x/sys/unix.Getpid
  • golang.org/x/sys/unix.Uname
Created
2026-08-23T16:06:51Z

Contract

  1. unix.Pipe creates a unidirectional pipe returning valid read and write file descriptors
  2. unix.NsecToTimeval converts nanoseconds to Timeval structure with seconds and microseconds
  3. unix.TimevalToNsec converts Timeval structure back to nanoseconds
  4. unix.Getpid returns the caller process ID matching a positive integer
  5. unix.Uname populates Utsname structure with system information

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