CodeSampleX

Sample

verify pkg:golang/github.com/russross/blackfriday/v2@v2.1.0

sha256:25e4c9fb44cf4f0a2fab82313ca3b6ade654520b2e282000965ca7906f81b229

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/github.com/russross/blackfriday/v2@v2.1.0
Packages
Created
2026-08-27T21:01:56Z

Contract

  1. blackfriday.Run converts Markdown input into HTML formatted output for standard headings, paragraphs, bold, and italic text
  2. blackfriday.WithExtensions enables extended markdown features including Strikethrough, Tables, and FencedCode
  3. blackfriday.WithNoExtensions disables default markdown extension processing
  4. blackfriday.NewHTMLRenderer configures custom HTML rendering parameters including HeadingLevelOffset and HeadingIDPrefix with AutoHeadingIDs
  5. blackfriday.SanitizedAnchorName generates lowercase URL-safe slug identifiers from heading text
  6. blackfriday.New constructs a Markdown parser instance and Parse produces an AST document tree with Heading and Document nodes

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