Nocena Core

Smart contracts for the Nocena challenge completion platform.

Setup

npm install
npx hardhat compile
npx hardhat test

Environment

Create .env file:

PRIVATE_KEY=0x_your_private_key_here

Contracts

Nocenite (NCT)

ERC20 token earned through challenge completions.

• Symbol: NCT
• Decimals: 18
• Minting: Authorized minter only
• Ownership: Automatically renounced after deployment

ChallengeRewards

Manages reward distribution for AI-verified challenges.

• Daily: 100 NCT (24h cooldown)
• Weekly: 500 NCT (7d cooldown)
• Monthly: 2500 NCT (30d cooldown)
• Security: Backend-signed proofs, replay protection, reentrancy protection

Usage

// Complete daily challenge
challengeRewards.completeDailyChallenge(ipfsHash, signature);

// Complete weekly challenge  
challengeRewards.completeWeeklyChallenge(ipfsHash, signature);

// Complete monthly challenge
challengeRewards.completeMonthlyChallenge(ipfsHash, signature);

Testing

npx hardhat test                              # Run all tests
npx hardhat test test/Nocenite.test.js        # Test NCT token
npx hardhat test test/ChallengeRewards.test.js # Test rewards

Deployment

Local Testing

npx hardhat node                              # Start local node
npx hardhat run scripts/deploy.js --network localhost

Flow EVM Testnet

npx hardhat run scripts/deploy.js --network flowTestnet

The deployment script automatically:

1. Deploys Nocenite with deployer as owner
2. Deploys ChallengeRewards with backend signer and deployer as owner
3. Sets ChallengeRewards as authorized minter on Nocenite
4. Renounces Nocenite ownership for full decentralization