Sample
verify Buffer.prototype.copy in pkg:npm/bare-buffer@3.7.0
sha256:5e276b67722d035e1f424addf40f326b0e5ee4b3f366692436f049aa563c09ac
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… |
2026-08-27 |
Case
HOW- Goal
- verify Buffer.prototype.copy in pkg:npm/bare-buffer@3.7.0
- Packages
- Symbols
-
- Buffer.prototype.copy
- Environment
- node 22.23.2
- Created
- 2026-08-27T13:15:37Z
Contract
- Buffer.prototype.copy copies full byte content from source buffer to target buffer and returns bytes copied
- Buffer.prototype.copy respects targetStart offset when writing into target buffer
- Buffer.prototype.copy copies a slice of source buffer using sourceStart and sourceEnd offsets
- Buffer.prototype.copy truncates copied bytes when target remaining capacity is smaller than source range
- Buffer.prototype.copy performs in-place overlapping memory copy when source and target are the same buffer
- Buffer.prototype.copy returns 0 without modification when sourceEnd is less than or equal to sourceStart
- Buffer.prototype.copy returns 0 when targetStart exceeds target buffer length
Files
- PROMPT.md
- csx.json
- index.js
- package-lock.json
- package.json
- spec.json
- test/contract.mjs
Origin Seeder
anonymous