CodeSampleX

Sample

verify pkg:npm/exponential-backoff@3.1.3

sha256:5c54bec84008dd91d29a76ff3e26944d833a70bc3ac30ebfb200437c5bdadf65

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 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@1node:22-alpine@sha256:c610fcdfb1d5…
2026-08-26

Case

HOW
Goal
verify pkg:npm/exponential-backoff@3.1.3
Packages
Symbols
  • backOff
Environment
node 22.23.2
Created
2026-08-26T07:35:16Z

Contract

  1. backOff executes an async function and resolves with its return value on the first attempt without delay
  2. backOff retries a failing async function with exponential delay and resolves when a subsequent attempt succeeds
  3. backOff rejects with the last encountered error when numOfAttempts is exceeded
  4. backOff invokes the retry callback with the error and attempt index and stops retrying when retry returns false
  5. backOff supports asynchronous retry callbacks to determine whether to continue reattempts
  6. retryWithBackoff wraps backOff and passes custom options including startingDelay, numOfAttempts, and jitter

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous