CodeSampleX

Sample

verify proxy-addr.compile in pkg:npm/proxy-addr@2.0.7

sha256:09f70f13613c62e0424d47e926f6336da1b0262804f68a3a0a717536e5399018

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 node 22.23 linux 24 · ubuntu · glibc 2.39 x64 node 22.23 javascript npm 10

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@1node:22-alpine@sha256:c610fcdfb1d5…
2026-08-23

Case

HOW
Goal
verify proxy-addr.compile in pkg:npm/proxy-addr@2.0.7
Packages
Symbols
  • proxy-addr.compile
Environment
node 22.23.2
Created
2026-08-23T04:23:17Z

Contract

  1. assert compile throws TypeError when argument is missing or falsy
  2. assert compile throws TypeError when argument is not a string or array
  3. assert compile throws TypeError when argument contains invalid IP address or out-of-range CIDR mask
  4. assert compile with empty array returns trust function that evaluates all addresses to false
  5. assert compile with single IP or CIDR returns trust function matching exact address and subnet range
  6. assert compile with built-in range names expands loopback linklocal and uniquelocal subnets
  7. assert compile with netmask notation parses subnet mask into valid CIDR trust evaluator
  8. assert compiled trust function correctly handles IPv4-mapped IPv6 address comparisons and invalid IP queries
  9. assert compile with array of mixed CIDR subnets and built-in names evaluates multi-subnet trust correctly

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous