Sample
verify pkg:npm/ipaddr.js@1.9.1
sha256:bc5db0d02b06919c8b3cc350eb3125834ee98127c097af357011828b64d9920b
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 pkg:npm/ipaddr.js@1.9.1
- Packages
- Environment
- node 22.23.2
- Created
- 2026-08-20T13:33:54Z
Contract
- ipaddr.isValid validates IPv4 and IPv6 string formats
- ipaddr.IPv4.isValid and ipaddr.IPv6.isValid validate specific IP versions
- ipaddr.parse parses IPv4 address into object with kind ipv4, octets array, and private range
- ipaddr.parse parses IPv6 address into object with kind ipv6 and normalized string representation
- ipaddr.parseCIDR and match evaluate CIDR subnet membership
- ipaddr.process correctly processes IPv4-mapped IPv6 addresses to IPv4
- ipaddr.parse throws error on invalid IP format
Files
- PROMPT.md
- csx.json
- package-lock.json
- package.json
- spec.json
- test/contract.cjs
Origin Seeder
anonymous