Sample
unicode-ident 1.0.24
Verified sample for cargo unicode-ident 1.0.24. The contract ran on rust 1 · linux alpine/x64 · docker and passed: UNICODE_VERSION matches the expected…
sha256:d7a594a824b1fcdaf1cfc4421f89e77c780878e2f0d0c4b9890fed4e7c504d91
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 · alpine · musl x64 cargo
Verification-run environments
| Environment | Contract | Stages | Run |
|---|---|---|---|
| rust 1 · linux alpine/x64 · docker ed25519:c1973797be207ac4 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · cargo@1rust:1-alpine@sha256:a10e64dd139b… |
2026-09-14 |
Case
HOW- Goal
- verify pkg:cargo/unicode-ident@1.0.24
- Packages
- Created
- 2026-09-14T06:46:30Z
Contract
- UNICODE_VERSION matches the expected Unicode 17.0.0 release tuple
- is_xid_start classifies ASCII alphabetic characters as identifier starts and rejects digits and punctuation
- is_xid_continue classifies ASCII alphabetic, numeric, and underscore characters as identifier continue
- is_xid_start classifies non-ASCII scripts like Greek and CJK characters as identifier starts
- is_xid_continue classifies non-ASCII continuation characters including combining marks
Files
- Cargo.lock
- Cargo.toml
- PROMPT.md
- csx.json
- spec.json
- src/lib.rs
- test/contract.rs
Source
# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
version = 4
[[package]]
name = "sample-unicode-ident"
version = "1.0.0"
dependencies = [
"unicode-ident",
]
[[package]]
name = "unicode-ident"
version = "1.0.24"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "e6e4313cd5fcd3dad5cafa179702e2b244f760991f45397d14d4ebf38247da75"
[package]
name = "sample-unicode-ident"
version = "1.0.0"
edition = "2021"
publish = false
[dependencies]
unicode-ident = "=1.0.24"
[[bin]]
name = "contract"
path = "test/contract.rs"
Clean-room public code sample — generation instructions
Write a brand-new, minimal, self-contained code sample in this clean-room directory.
Do not copy, paraphrase, or reference any existing project source. Work only from this spec.
A csx.json manifest scaffold already exists. Do not recreate it from memory. Preserve its case.goal, packages and symbols; fill its empty case.contract with exact assertions and correct its environment, commands and verifierAdapter for the files you generate.
Goal: verify pkg:cargo/unicode-ident@1.0.24
Kind: HOW
Use EXACTLY these public packages and versions:
- pkg:cargo/unicode-ident@1.0.24
Constraints:
- executionContext: node
Required runtime conditions:
- ecosystem: npm
- language: javascript
- moduleSystem: cjs
- packageManager: npm@10.9.8
- runtime: node@22.23.2
Rules:
- One focused purpose; the smallest project that proves the goal.
- Include a contract test (test/contract.*) that runs OFFLINE and exits 0 exactly when the goal behavior works.
- Pin every dependency with a lockfile so resolution is reproducible.
- No secrets, credentials, or tokens. No real URLs (only example.com or localhost). No absolute paths.
- No personal names, emails, company names, or project identifiers of any kind.
- No binaries and no generated output (node_modules, dist, target, venv, .git, .env).
- Keep it under 200 files and 256KB packed.
{"case":{"caseId":"case:sha256:f882b8227892c3c35b5db8e18237dc306125ce5711ba9d7d62cdc6a2bdddbd68","contract":["UNICODE_VERSION matches the expected Unicode 17.0.0 release tuple","is_xid_start classifies ASCII alphabetic characters as identifier starts and rejects digits and punctuation","is_xid_continue classifies ASCII alphabetic, numeric, and underscore characters as identifier continue","is_xid_start classifies non-ASCII scripts like Greek and CJK characters as identifier starts","is_xid_continue classifies non-ASCII continuation characters including combining marks"],"goal":"verify pkg:cargo/unicode-ident@1.0.24","kind":"HOW","packages":["pkg:cargo/unicode-ident@1.0.24"],"schemaVersion":1},"contractCommand":["cargo","run","--offline"],"environment":{"arch":"x64","distro":"alpine","ecosystem":"cargo","libc":"musl","os":"linux","packageManager":"cargo","schemaVersion":1},"license":"MIT-0","packages":["pkg:cargo/unicode-ident@1.0.24"],"schemaVersion":1,"subject":"pkg:cargo/unicode-ident@1.0.24","verifierAdapter":"cargo@1"}
{
"schemaVersion": 1,
"goal": "verify pkg:cargo/unicode-ident@1.0.24",
"kind": "HOW",
"packages": [
"pkg:cargo/unicode-ident@1.0.24"
]
}
//! Clean-room verification sample for unicode-ident.
pub use unicode_ident::*;
use unicode_ident::{is_xid_continue, is_xid_start, UNICODE_VERSION};
fn main() {
// 1. Unicode version
assert_eq!(UNICODE_VERSION, (17, 0, 0));
// 2. ASCII identifier start
assert!(is_xid_start('a'));
assert!(is_xid_start('Z'));
assert!(!is_xid_start('0'));
assert!(!is_xid_start('_'));
assert!(!is_xid_start('$'));
assert!(!is_xid_start(' '));
assert!(!is_xid_start('-'));
// 3. ASCII identifier continuation
assert!(is_xid_continue('a'));
assert!(is_xid_continue('Z'));
assert!(is_xid_continue('0'));
assert!(is_xid_continue('_'));
assert!(!is_xid_continue('$'));
assert!(!is_xid_continue(' '));
assert!(!is_xid_continue('-'));
// 4. Non-ASCII identifier start
assert!(is_xid_start('α'));
assert!(is_xid_start('Ω'));
assert!(is_xid_start('中'));
assert!(is_xid_start('文'));
assert!(!is_xid_start('©'));
assert!(!is_xid_start('•'));
// 5. Non-ASCII continuation characters
assert!(is_xid_continue('α'));
assert!(is_xid_continue('中'));
assert!(is_xid_continue('\u{0300}'));
assert!(!is_xid_start('\u{0300}'));
assert!(!is_xid_continue('©'));
assert!(!is_xid_continue(' '));
println!("All unicode-ident contract assertions passed successfully.");
}
Origin Seeder
anonymous