CodeSampleX

Sample

verify golang.org/x/net/idna.ToASCII in pkg:golang/golang.org/x/net@v0.38.0

sha256:6f86871295a443921b0f3ea29959c391f5bb14ed104f09d6bb49bd99c76ccf4f

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…
2026-08-26

Case

HOW
Goal
verify golang.org/x/net/idna.ToASCII in pkg:golang/golang.org/x/net@v0.38.0
Packages
Symbols
  • golang.org/x/net/idna.ToASCII
Created
2026-08-26T01:22:15Z

Contract

  1. idna.ToASCII converts internationalized domain names with unicode characters to ASCII Punycode
  2. idna.ToASCII converts non-Latin scripts such as CJK domain names to ASCII Punycode
  3. idna.ToASCII preserves standard ASCII domain names without modification
  4. idna.ToASCII preserves trailing dot for fully qualified domain names
  5. idna.ToASCII selectively converts internationalized labels within a subdomain hierarchy
  6. idna.ToASCII preserves already-encoded valid Punycode labels
  7. idna.ToASCII accepts empty string and returns empty string without error
  8. idna.ToASCII returns an error when given a malformed Punycode label

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