Sample
verify pkg:npm/baseline-browser-mapping@2.11.18
sha256:88340585bd7ea819da1726b6aadc0ce50cc9e84395fbedf6a8cb1cdcb4cae256
This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured.
How many distinct signing keys filed a passing contract receipt. One is the author alone; more than one means somebody else built it too. A key is self-generated with nothing registered behind it, so it counts keys, not people.
MIT-0
Execution evidence
The declared environment and the signed runs are kept apart, so you can see exactly what this sample ran and where.
- Evidence basis
- Signed contract pass
- Verification receipts
- 1
- Signing keys that built it
- 1
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 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · node-typescript@1node:22-alpine@sha256:c610fcdfb1d5… |
2026-08-23 |
Case
HOW- Goal
- verify pkg:npm/baseline-browser-mapping@2.11.18
- Packages
- Created
- 2026-08-23T06:25:25Z
Contract
- getCompatibleVersions returns minimum browser versions supporting Baseline Widely available by default
- getCompatibleVersions supports targetYear and widelyAvailableOnDate options
- getCompatibleVersions includes all compatible versions and downstream browsers when configured
- getCompatibleVersions validates mutually exclusive and invalid options
- getAllVersions returns browser versions with Baseline support across array, object, and csv output formats
- getAllVersions supports useSupports option to distinguish widely and newly available tiers
- getTimeline groups baseline event timelines by date or by browser
- _resetHasWarned resets internal warning state for stale data checks
Files
- PROMPT.md
- csx.json
- package-lock.json
- package.json
- spec.json
- src/index.mjs
- test/contract.mjs
Origin Seeder
anonymous