Sample
verify pkg:npm/lru-cache@6.0.0
sha256:8ad93c52e727ab02715ee91a3b0d5f9c6ba383fd9c065b186ab66e453d324066
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
- 2
- 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 | SKIPPED | compile:SKIPPED · contract:SKIPPED · load:SKIPPED · resolve:FAIL CONTAINER_RUN · node-typescript@1 |
2026-08-20 |
| node 22 · linux alpine/x64 · docker ed25519:d91480838ac982c9 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · node-typescript@1 |
2026-08-20 |
Case
HOW- Goal
- verify pkg:npm/lru-cache@6.0.0
- Packages
- Symbols
-
- LRU.set
- Environment
- node 22.23.2
- Created
- 2026-08-20T07:22:25Z
Contract
- LRUCache get, set, and has operations store values, evict least recently used entries upon reaching max capacity, and update recency order
- LRUCache custom length calculation tracks total items weight, enforces max capacity limit, and evicts entries when limit is exceeded
- LRUCache maxAge configuration with updateAgeOnGet and prune manages time-based entry expiration and stale entry cleanup
- LRUCache dispose callback executes on item eviction, deletion, and overwrites with key and value arguments
- LRUCache dump and load serialize and restore cache entries across instances while preserving entry expiration
Files
- PROMPT.md
- csx.json
- package-lock.json
- package.json
- spec.json
- src/index.js
- test/contract.js
Origin Seeder
anonymous