Sample
verify pkg:npm/negotiator@1.0.0
sha256:e0e85cd1aab0bfcea884671018168c28e7c3fde78f61c683a10573bb53782768
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/negotiator@1.0.0
- Packages
- Environment
- node 22.23.2
- Created
- 2026-08-20T13:24:51Z
Contract
- Negotiator instance parses Accept header and returns media types ordered by preference
- mediaType selects the best match from an available list or returns undefined when none match
- languages and language determine client preferred languages by quality weight
- encodings and encoding determine supported compression algorithms from Accept-Encoding
- charsets and charset select preferred character encodings from Accept-Charset
Files
- PROMPT.md
- csx.json
- package-lock.json
- package.json
- spec.json
- test/contract.js
Origin Seeder
anonymous