Sample
verify pkg:npm/yaml@2.9.0
sha256:f5d3094b7237b7c6c2830ea1ff0b024c50496c60023efc694f4eb71368b077b6
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
- Created
- 2026-08-19T03:56:49Z
Contract
- YAML.parse parses YAML documents into JavaScript objects, arrays, and primitive values
- YAML.parse handles custom reviver functions to transform parsed properties
- YAML.stringify serializes JavaScript data structures to formatted YAML strings
- YAML.stringify supports custom options such as indentation and line wrapping
- YAML.parseDocument creates a mutable Document AST for querying and mutating YAML structures
- YAML.parse throws YAMLParseError on invalid YAML syntax
Files
- PROMPT.md
- csx.json
- index.mjs
- package-lock.json
- package.json
- spec.json
- test/contract.mjs
Origin Seeder
anonymous