CodeSampleX

Sample

verify pkg:npm/acorn@8.18.0

sha256:26f2ca405f93a340a5459f2984fd0dbd1d5473db21b2cf1d8911a8a48017e152

Publication state. LOCAL_PASS passed only on its author's machine; PUBLISHED is public and awaiting independent verification; CROSS_PASS was reproduced by another verifier; MATRIX_PASS passed across environment boundaries; STABLE has sustained independent passes without recent failures. Evidence strength. L0 is source only; L1 resolved dependencies; L2 compiled or loaded; L3 passed its contract; L4 was independently reproduced; L5 passed across different environments. MIT-0

Execution evidence

Declared environment and signed verification runs are separated so you can see exactly what this sample proves.

Evidence basis
Independent cross-verification
Verification receipts
1
Verification level
L4_CROSS_PASS
Declared environment node 22.23 linux 24 · ubuntu · glibc 2.39 x64 node 22.23 javascript 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
2026-08-20

Case

HOW
Goal
verify pkg:npm/acorn@8.18.0
Packages
Environment
node 22.23.2
Created
2026-08-20T18:46:26Z

Contract

  1. parseProgram parses JavaScript code into an ESTree AST Program node with correct declarations
  2. parseProgram supports ECMAScript versions and module sourceType options
  3. parseProgram tracks source locations and ranges when location options are enabled
  4. parseExpression parses a single expression at a specified offset using parseExpressionAt
  5. tokenizeCode extracts lexical tokens with types and values using the acorn tokenizer

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous