Sample
verify @babel/helper-validator-identifier.isIdentifierChar in pkg:npm/%40babel/helper-validator-identifier@8.0.4
sha256:9f7b31d7f5fd0f9fd8bf2c8f459e90ec50be1becabc6ad14365251f4abff93de
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
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 @babel/helper-validator-identifier.isIdentifierChar in pkg:npm/%40babel/helper-validator-identifier@8.0.4
- Symbols
-
- @babel/helper-validator-identifier.isIdentifierChar
- Environment
- node 22.23.2
- Created
- 2026-08-20T21:06:20Z
Contract
- isIdentifierChar returns true for ASCII letters (both lowercase and uppercase), dollar sign, and underscore character codes
- isIdentifierChar returns true for ASCII decimal digit character codes 0 through 9, which are valid identifier continuation characters
- isIdentifierChar returns true for Unicode letter and symbol character codes that qualify as valid identifier continuation characters
- isIdentifierChar returns false for ASCII whitespace and newline character codes such as space, tab, and newline
- isIdentifierChar returns false for punctuation and operator character codes such as hyphen, at sign, exclamation mark, dot, slash, and backslash
Files
- PROMPT.md
- csx.json
- package-lock.json
- package.json
- spec.json
- src/index.js
- test/contract.mjs
Origin Seeder
anonymous