CodeSampleX

Sample

verify pkg:npm/%40esbuild/netbsd-arm64@0.28.2

sha256:ad8f697200e0943e172c4d7e84f350eb68ef041424e4165f133b65e19f27db7d

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 npm

Verification-run environments

Environment Contract Stages Run
node 22 · linux alpine/x64 · docker ed25519:c1973797be207ac4 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1
2026-08-21

Case

HOW
Goal
verify pkg:npm/%40esbuild/netbsd-arm64@0.28.2
Packages
Created
2026-08-21T14:14:59Z

Contract

  1. assert package resolution locates @esbuild/netbsd-arm64 manifest and binary
  2. assert package manifest specifies os netbsd, cpu arm64, and node >= 18
  3. assert binary header contains 64-bit little-endian ELF magic and EM_AARCH64 architecture code 183
  4. assert executing netbsd arm64 native binary on mismatched host fails

Files

  • .npmrc
  • PROMPT.md
  • csx.json
  • package-lock.json
  • package.json
  • spec.json
  • test/contract.cjs

Download the source artifact (tar.gz)

Origin Seeder

anonymous