Sample
verify pkg:npm/%40jest/diff-sequences@30.4.0
sha256:f8b1ee685a45971153cbb54dc3f49fc39110a6e24663d8bc3bbf05531dd01b3f
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 pkg:npm/%40jest/diff-sequences@30.4.0
- Packages
- Symbols
-
- diffSequence
- Environment
- node 22.23.2
- Created
- 2026-08-27T22:40:30Z
Contract
- diffSequence invokes foundSubsequence callback with length and starting indices for each common chunk between two sequences
- diffSequence validates that aLength and bLength are non-negative safe integers and throws TypeError or RangeError otherwise
- diffSequence validates that isCommon and foundSubsequence are functions and throws TypeError otherwise
- diffSequence handles identical sequences by emitting a single common chunk spanning the entire length
- diffSequence handles completely disjoint sequences without invoking foundSubsequence
- diffSequence handles empty sequences without error or callback invocations
- findCommonSubsequences extracts all matched contiguous intervals between arrays or strings
- computeEditScript generates ordered delete, insert, and common operations transforming sequence A into sequence B
- longestCommonSubsequence reconstructs the longest shared subsequence of items
Files
- PROMPT.md
- csx.json
- index.js
- package-lock.json
- package.json
- spec.json
- test/contract.js
Origin Seeder
anonymous