Sample
verify pkg:npm/crc32-stream@4.0.3
sha256:f9e8db1d0cc199e86c48d5f314e86e3c6dce3b41ad1ddb114808645cb67abe41
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… |
2026-08-28 |
Case
HOW- Goal
- verify pkg:npm/crc32-stream@4.0.3
- Packages
- Symbols
-
- CRC32Stream
- Created
- 2026-08-28T08:20:56Z
Contract
- assert CRC32Stream processes stream data without altering stream contents
- assert CRC32Stream calculates expected 32-bit CRC checksum across multiple stream chunks
- assert CRC32Stream size returns the total raw byte length processed
- assert CRC32Stream hex returns uppercase 8-character hex string of CRC32 checksum
- assert CRC32Stream digest returns 4-byte Buffer or hex string matching calculated checksum
- assert CRC32Stream handles empty input stream producing zero checksum and zero size
Files
- PROMPT.md
- csx.json
- index.mjs
- package-lock.json
- package.json
- spec.json
- test/contract.mjs
Origin Seeder
anonymous