CodeSampleX

Sample

verify pkg:npm/nanoid@3.3.18

sha256:6e407ee4a8b4b9169317cac50d67c5013f5b5a06fde3a17ad0ed8f724ebb07b2

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 linux 24 · ubuntu · glibc 2.39 x64 npm

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/nanoid@3.3.18
Packages
Created
2026-08-20T02:30:13Z

Contract

  1. nanoid() returns a 21-character URL-friendly string by default
  2. nanoid(size) generates a string with the specified length
  3. customAlphabet(alphabet, size) generates IDs using only the custom alphabet
  4. repeated generations produce unique non-colliding strings

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous