Sample
verify iconv-lite.encodingExists in pkg:npm/iconv-lite@0.4.24
sha256:c2d459c0d0f680894b935fe99e964c03c4a6f8616bb9ddaae1b87c3d60c3f303
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 iconv-lite.encodingExists in pkg:npm/iconv-lite@0.4.24
- Packages
- Symbols
-
- iconv-lite.encodingExists
- Environment
- node 22.23.2
- Created
- 2026-08-20T19:06:16Z
Contract
- assert iconv.encodingExists returns true for standard encodings including UTF-8, UTF-16, and ASCII
- assert iconv.encodingExists returns true for case-insensitive and hyphenated alias names like utf-8, UTF8, and Utf-8
- assert iconv.encodingExists returns true for legacy single-byte encodings including Windows-1252, Windows-1251, and ISO-8859-1
- assert iconv.encodingExists returns true for CJK multibyte encodings including EUC-KR, Shift_JIS, and GBK
- assert iconv.encodingExists returns false for unknown or invalid encoding names
- assert iconv.encodingExists returns false for empty or non-string inputs
Files
- PROMPT.md
- csx.json
- index.js
- package-lock.json
- package.json
- spec.json
- test/contract.mjs
Origin Seeder
anonymous