Sample
verify pkg:npm/yaml@2.9.0
sha256:67cd9992084a8519c5a0df028c9b7461fea5e7496fd529df3a2724e5d92f41a2
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 22.22 linux 24 · ubuntu · glibc 2.39 x64 node 22.22 javascript npm 11 wsl
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 22.22.2
- Created
- 2026-08-19T11:59:04Z
Contract
- assert yaml.isDocument identifies Document AST root instances
- assert yaml.visit traverses YAML Document AST nodes and allows mutating scalar values in-place
- assert yaml.visit supports visit.REMOVE to delete matching AST nodes and visit.BREAK to abort traversal
- assert yaml.visitAsync asynchronously traverses and transforms Document AST nodes
- assert yaml.Scalar creates explicit scalar nodes with custom comments and formatting
- assert yaml.Alias creates AST alias references and isAlias identifies alias nodes
Files
- PROMPT.md
- csx.json
- index.js
- package-lock.json
- package.json
- spec.json
- test/contract.cjs
Origin Seeder
anonymous