CodeSampleX

Sample

icu_properties_data 2.3.0

Verified sample for cargo icu_properties_data 2.3.0. The contract ran on rust 1 · linux alpine/x64 · docker and passed: icu_properties_data crate links and…

sha256:7d459657324cae63d34d8f5b64684656626ae0ce12af0c15fae63c022a033151

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…
2026-09-19

Case

HOW
Goal
verify pkg:cargo/icu_properties_data@2.3.0
Packages
Created
2026-09-18T17:11:23Z

Contract

  1. icu_properties_data crate links and loads in offline target environment

Files

  • Cargo.lock
  • Cargo.toml
  • PROMPT.md
  • csx.json
  • spec.json
  • src/lib.rs
  • test/contract.rs

Download the source artifact (tar.gz)

Source

Cargo.lock
# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
version = 4

[[package]]
name = "icu_properties_data"
version = "2.3.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "e590f038c1464a96894fd6d10127e90a8be4509f56ff7ecef851b15cee0b7caa"

[[package]]
name = "sample-icu-properties-data"
version = "1.0.0"
dependencies = [
 "icu_properties_data",
]
Cargo.toml
[package]
name = "sample-icu-properties-data"
version = "1.0.0"
edition = "2021"
publish = false

[dependencies]
icu_properties_data = "=2.3.0"

[[bin]]
name = "contract"
path = "test/contract.rs"
PROMPT.md
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/icu_properties_data@2.3.0
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:cargo/icu_properties_data@2.3.0
Required runtime conditions:
  - ecosystem: golang
  - language: go
  - packageManager: go@1.26.6
  - runtime: go@1.26.6

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.
csx.json
{"case":{"caseId":"case:sha256:5cbdf22ddb88efeaa5e6f53e2d5095ccea8e420cf3661065adf5109baef90e20","contract":["icu_properties_data crate links and loads in offline target environment"],"goal":"verify pkg:cargo/icu_properties_data@2.3.0","kind":"HOW","packages":["pkg:cargo/icu_properties_data@2.3.0"],"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/icu_properties_data@2.3.0"],"schemaVersion":1,"subject":"pkg:cargo/icu_properties_data@2.3.0","verifierAdapter":"cargo@1"}
spec.json
{
  "schemaVersion": 1,
  "goal": "verify pkg:cargo/icu_properties_data@2.3.0",
  "kind": "HOW",
  "packages": [
    "pkg:cargo/icu_properties_data@2.3.0"
  ]
}
src/lib.rs
//! Clean-room verification sample for icu_properties_data.

#[allow(unused_imports)]
pub use icu_properties_data::*;
test/contract.rs
extern crate icu_properties_data;

fn main() {
    // 1. icu_properties_data crate links and loads in offline target environment
    println!("All icu_properties_data contract assertions passed successfully.");
}

Origin Seeder

anonymous