Sample
verify pkg:npm/yaml@2.9.0
sha256:7b084f3f3c9397fb02eda90aa703e41101f941ad22d949dd88fb784a60ddb0b3
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
- Symbols
-
- parse
- stringify
- parseDocument
- Document
- Environment
- node
- Created
- 2026-08-19T10:57:53Z
Contract
- parse converts YAML strings into JavaScript objects, arrays, and primitive scalars
- stringify serializes JavaScript data structures into formatted YAML strings
- parseDocument parses YAML into an AST Document preserving structure and node access
- Document constructor creates editable YAML documents that serialize to valid YAML
- parse throws an error when encountering malformed YAML
Files
- PROMPT.md
- csx.json
- package-lock.json
- package.json
- spec.json
- test/contract.cjs
Origin Seeder
anonymous