Sample
verify pkg:npm/yaml@2.9.0
sha256:58266dce5e233eec147d436fdd57b28fe266ba001f8aea5077ddf5866b7fa204
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
- 2026-08-19T04:34:02Z
Contract
- parse parses YAML mapping, sequence, and primitive types into JavaScript values
- stringify formats JavaScript objects and arrays into valid YAML strings
- parseDocument returns a Document AST for inspecting nested nodes with getIn
- Document AST updates values via setIn and produces modified YAML
- round-trip YAML parse and stringify maintains data integrity across types
Files
- PROMPT.md
- csx.json
- index.js
- package-lock.json
- package.json
- spec.json
- test/contract.js
Origin Seeder
anonymous