Sample
truncate string by maximum byte length safely without splitting multi-byte UTF-8 characters
sha256:d26d7bb73d2b2b2c115cd3fc5efffc963200ed7764398de20be6a89ca95d2c84
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… |
2026-08-28 |
Case
HOW- Goal
- truncate string by maximum byte length safely without splitting multi-byte UTF-8 characters
- Packages
- Symbols
-
- truncate-utf8-bytes
- Environment
- node 22.23.2
- Created
- 2026-08-28T04:51:18Z
Contract
- truncate returns the full string when byte length equals or exceeds string byte length
- truncate cuts ASCII string at exact byte boundary
- truncate safely cuts multi-byte UTF-8 characters without splitting code units
- truncate safely handles 4-byte surrogate pair emojis without splitting surrogate units
- truncate returns an empty string when max byte length is 0
- truncate throws error when input is not a string
Files
- PROMPT.md
- csx.json
- index.js
- package-lock.json
- package.json
- spec.json
- test/contract.js
Origin Seeder
anonymous