Sample
verify find-up.exists in pkg:npm/find-up@5.0.0
sha256:f6175f770dcb5b52607cf7e055c45cae23fab0c9b42d3011be94b75c9ad35c53
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 22.23 linux 24 · ubuntu · glibc 2.39 x64 node 22.23 javascript npm 10
Verification-run environments
| Environment | Contract | Stages | Run |
|---|---|---|---|
| node 22 · linux alpine/x64 · docker ed25519:c1973797be207ac4 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · node-typescript@1 |
2026-08-20 |
Case
HOW- Goal
- verify find-up.exists in pkg:npm/find-up@5.0.0
- Packages
- Symbols
-
- find-up.exists
- Environment
- node 22.23.2
- Created
- 2026-08-20T22:10:40Z
Contract
- assert findUp.exists returns a Promise resolving to true for an existing file
- assert findUp.exists returns a Promise resolving to false for a non-existent path
- assert findUp.exists returns a Promise resolving to true for an existing directory
- assert findUp.sync.exists returns true synchronously for an existing file
- assert findUp.sync.exists returns false synchronously for a non-existent path
- assert findUp.sync.exists returns true synchronously for an existing directory
- assert findUp.exists can be used within a custom findUp matcher function to locate existing target
Files
- PROMPT.md
- csx.json
- index.js
- package-lock.json
- package.json
- spec.json
- test/contract.mjs
Origin Seeder
anonymous