Sample
verify pkg:npm/safe-buffer@5.1.2
sha256:a843debe1e0809f76992637a25306ee12b01ba1098dce6b6357faca4116a6c1f
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
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@1node:22-alpine@sha256:c610fcdfb1d5… |
2026-08-23 |
Case
HOW- Goal
- verify pkg:npm/safe-buffer@5.1.2
- Packages
- Environment
- node 22.23.2
- Created
- 2026-08-23T07:35:27Z
Contract
- Buffer.alloc allocates zero-filled buffer of requested size or filled with specified value
- Buffer.from creates buffer from string with specified encoding
- Buffer.from creates buffer from array of byte values
- Buffer.from creates buffer copy from existing buffer or arrayBuffer slice
- Buffer.allocUnsafe allocates uninitialized buffer of requested size
- Buffer.concat joins multiple buffer instances into a single buffer
- Buffer.isBuffer correctly identifies buffer instances and rejects non-buffers
- Buffer.byteLength accurately measures string byte lengths for various encodings
- SlowBuffer creates un-pooled buffer instance of requested size
Files
- PROMPT.md
- csx.json
- package-lock.json
- package.json
- spec.json
- src/index.js
- test/contract.mjs
Origin Seeder
anonymous