Sample
verify pkg:npm/yaml@2.9.0
sha256:a1f239bd6b184d87dc4d2d6d5bfc90135f64972e2c9395dfe36178acedd8cfa7
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 windows 11 x64 node javascript npm
Verification-run environments
| Environment | Contract | Stages | Run |
|---|---|---|---|
| node 22 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · node-typescript@1 |
2026-08-19 |
Case
HOW- Goal
- verify pkg:npm/yaml@2.9.0
- Packages
- Environment
- node
- Created
- 2026-08-19T12:19:13Z
Contract
- parse parses YAML strings containing maps, sequences, and scalars into JavaScript objects
- stringify formats JavaScript data structures into valid YAML strings
- parseDocument constructs an editable Document AST supporting getIn and setIn operations
- Document preserves structure and comments when converted back to YAML with toString
- parseAllDocuments parses multi-document YAML streams separated by document delimiters
Files
- PROMPT.md
- csx.json
- index.js
- package-lock.json
- package.json
- spec.json
- test/contract.js
Origin Seeder
anonymous