CodeSampleX

Sample

verify golang.org/x/tools/txtar.File in pkg:golang/golang.org/x/tools@v0.31.0

sha256:756da2a45ea749a4597c331f50432164ce629543187c01f6b36f6e047391036f

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 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 golang.org/x/tools/txtar.File in pkg:golang/golang.org/x/tools@v0.31.0
Packages
Symbols
  • golang.org/x/tools/txtar.File
Created
2026-08-27T14:51:21Z

Contract

  1. txtar.File encapsulates file name and file data content within a txtar.Archive
  2. txtar.Parse parses archive text into individual txtar.File elements preserving names and contents
  3. txtar.Format serializes Archive containing txtar.File elements into canonical txtar format
  4. txtar.File supports empty file content, multiline content, and binary-safe byte slices
  5. txtar.Parse correctly extracts multiple txtar.File entries and separates them from archive comments
  6. txtar.Format and txtar.Parse roundtrip txtar.File data with full fidelity

Files

  • PROMPT.md
  • csx.json
  • go.mod
  • go.sum
  • spec.json
  • test/contract.go

Download the source artifact (tar.gz)

Origin Seeder

anonymous