CodeSampleX

Sample

github.com/slackhq/nebula v1.6.1: header.Encode

Verified sample for golang github.com/slackhq/nebula v1.6.1: header.Encode. The contract ran on go 1.26 · linux alpine/x64 · docker and passed: header.Encode…

sha256:cf8f2d24f4ad8a98b2dd28baf11e99da16dd6f88ab3ed4c4a429a1ffdb2f71ea

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…		 2026-08-30

Case

HOW
Goal
verify github.com/slackhq/nebula/header.Encode in pkg:golang/github.com/slackhq/nebula@v1.6.1
Packages
Symbols
  • github.com/slackhq/nebula/header.Encode
Created
2026-08-30T18:23:50Z

Contract

  1. header.Encode encodes version, type, subtype, remote index, and message counter into a 16-byte binary header slice
  2. header.NewHeader successfully parses the binary buffer written by header.Encode to recover all header fields
  3. header.H.Encode delegates to header.Encode to serialize a Header struct into 16 bytes
  4. header.Encode explicitly zeroes reserved bytes in positions 2 and 3 of the header buffer

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