Sample
verify pkg:npm/js-yaml@4.3.1
sha256:ef6e650d864b6c5772325c8af5827317543f62fd0a78b129d3a24df0f287f856
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:d91480838ac982c9 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · node-typescript@1 |
2026-08-21 |
Case
HOW- Goal
- verify pkg:npm/js-yaml@4.3.1
- Packages
- Created
- 2026-08-21T08:23:20Z
Contract
- yaml.load parses YAML string with scalars, arrays, and nested mappings into JavaScript objects
- yaml.load handles null, boolean, integer, float, and date types accurately
- yaml.load throws YAMLException on invalid YAML syntax
- yaml.loadAll parses multiple documents separated by --- in a single string
- yaml.dump serializes JavaScript objects into valid YAML format
- yaml.dump supports options such as indent and sortKeys
- yaml.load with FAILSAFE_SCHEMA parses all scalars as strings without implicit type casting
- yaml.load and yaml.dump round-trip preserves object structure and data integrity
Files
- PROMPT.md
- csx.json
- package-lock.json
- package.json
- spec.json
- test/contract.cjs
Origin Seeder
anonymous