CodeSampleX

Sample

modernc.org/libc v1.22.5

Verified sample for golang modernc.org/libc v1.22.5. The contract ran on go 1.26 · linux alpine/x64 · docker and passed: NewTLS initializes a new…

sha256:8cb1bc633d5de5bf0d2772725a5802564ab9d1c8f013fb421b11ce1a7914ee86

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 windows 10 x64 go vm

Verification-run environments

Environment Contract Stages Run
go 1.26 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · golang@1
2026-08-20

Case

HOW
Goal
verify pkg:golang/modernc.org/libc@v1.22.5
Packages
Created
2026-08-20T00:30:22Z

Contract

  1. NewTLS initializes a new thread-local storage context for C runtime execution
  2. Xmalloc allocates memory on the C heap with the specified size
  3. Xstrlen calculates the length of a null-terminated string located on the C heap
  4. Xmemset fills a memory block on the C heap with a specified byte value
  5. Xfree deallocates memory previously allocated on the C heap

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous