CodeSampleX

Sample

lru-cache 10.4.3

Verified sample for npm lru-cache 10.4.3. The contract ran on node 22 · linux alpine/x64 · docker and passed: LRUCache get, set, and has operations store…

sha256:c28dbf8264fe3e311e1cda8403c17d34b335eaf6e9ee159fc783b9cdaa4e0cd4

This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. How many distinct signing keys filed a passing contract receipt. One is the author alone; more than one means somebody else built it too. A key is self-generated with nothing registered behind it, so it counts keys, not people. MIT-0

Execution evidence

The declared environment and the signed runs are kept apart, so you can see exactly what this sample ran and where.

Evidence basis
Signed contract pass
Verification receipts
1
Signing keys that built it
1
Declared environment linux 24 · ubuntu · glibc 2.39 x64 npm

Verification-run environments

Environment Contract Stages Run
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@10.4.3
Packages
Created
2026-08-20T07:18:17Z

Contract

  1. LRUCache get, set, and has operations store values, evict LRU entries upon reaching max capacity, and maintain recency order
  2. LRUCache sizeCalculation and maxSize track item weights, enforce size limits, and evict entries when total size exceeds maxSize
  3. LRUCache ttl configuration with updateAgeOnGet and purgeStale manages time-based entry expiration and stale item cleanup
  4. LRUCache dispose and disposeAfter callbacks execute with proper dispose reasons on eviction, deletion, and overwrites
  5. LRUCache fetchMethod and memoMethod resolve missing entries, support asynchronous fetching, and coalesce concurrent lookups
  6. LRUCache dump and load serialize and restore cache entries with metadata across instances

Files

  • PROMPT.md
  • csx.json
  • package-lock.json
  • package.json
  • spec.json
  • src/index.mjs
  • test/contract.mjs

Download the source artifact (tar.gz)

Origin Seeder

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