Sample
verify pkg:npm/yaml@2.9.0
sha256:a4ed56359ffe2480bd2841c2d1df6bdee57e3875858d5c299716d8a01ba88732
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
windows 11 x64 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
- Created
- 2026-08-19T09:21:27Z
Contract
- YAML.parse parses YAML strings into JavaScript objects, arrays, and scalars
- YAML.stringify serializes JavaScript data structures into formatted YAML strings
- YAML.parseDocument parses YAML strings into Document AST instances
- YAML.Document enables programmatic creation and modification of YAML documents
Files
- PROMPT.md
- csx.json
- index.js
- package-lock.json
- package.json
- spec.json
- test/contract.js
Origin Seeder
anonymous