Decentralized Autonomous Fund (DAF) Smart Contract

Overview

The Decentralized Autonomous Fund (DAF) is a smart contract implemented on the Stacks blockchain that enables collective fund management through a decentralized governance system. The contract allows users to deposit STX tokens, create proposals, vote on them, and execute approved funding decisions.

Features

• Token Management

  • Deposit STX tokens with minimum deposit requirements
  • Automatic token minting based on deposits
  • Token burning mechanism for withdrawals
  • Locked deposit periods for fund stability

• Proposal System

  • Create funding proposals with customizable parameters
  • Set proposal duration (1-14 days)
  • Include detailed proposal descriptions
  • Specify funding amounts and target recipients

• Voting Mechanism

  • Token-weighted voting system
  • One vote per address per proposal
  • Automatic vote tallying
  • Prevention of double voting

• Execution System

  • Automated proposal execution after voting period
  • Security checks for proposal validity
  • Automatic fund distribution to approved targets

Technical Specifications

Constants

• Minimum deposit: 1,000,000 microSTX
• Lock period: 1,440 blocks (~10 days)
• Minimum proposal duration: 144 blocks (~1 day)
• Maximum proposal duration: 20,160 blocks (~14 days)

Error Codes

u100 - Owner only operation
u101 - Contract not initialized
u102 - Already initialized
u103 - Insufficient balance
u104 - Invalid amount
u105 - Unauthorized operation
u106 - Proposal not found
u107 - Proposal expired
u108 - Already voted
u109 - Below minimum deposit
u110 - Locked period active
u111 - Transfer failed
u112 - Invalid duration
u113 - Zero amount
u114 - Invalid target
u115 - Invalid description

Usage

Initialization

The contract must be initialized by the contract owner before any operations can be performed:

(contract-call? .daf-contract initialize)

Depositing Funds

Users can deposit STX tokens to participate in the fund:

(contract-call? .daf-contract deposit amount)

Requirements:

• Amount must be ≥ minimum deposit (1,000,000 microSTX)
• Deposits are locked for 1,440 blocks

Creating Proposals

Token holders can create funding proposals:

(contract-call? .daf-contract create-proposal description amount target duration)

Parameters:

• description: ASCII string (max 256 chars)
• amount: Amount in microSTX
• target: Recipient principal
• duration: Blocks until proposal expires (144-20,160)

Requirements:

• Proposer must hold tokens
• Amount must be > 0
• Target cannot be the contract itself
• Description cannot be empty

Voting

Token holders can vote on active proposals:

(contract-call? .daf-contract vote proposal-id vote-for)

Requirements:

• Voter must hold tokens
• Proposal must not be expired
• One vote per address per proposal
• Voting power is proportional to token balance

Executing Proposals

Approved proposals can be executed after the voting period:

(contract-call? .daf-contract execute-proposal proposal-id)

Requirements:

• Proposal must be expired
• More YES votes than NO votes
• Proposal not already executed

Query Functions

Get Balance

(contract-call? .daf-contract get-balance account)

Get Total Supply

(contract-call? .daf-contract get-total-supply)

Get Proposal Details

(contract-call? .daf-contract get-proposal proposal-id)

Get Deposit Information

(contract-call? .daf-contract get-deposit-info account)

Security Considerations

1. Lock Period

   • Deposits are locked for ~10 days to prevent market manipulation
   • Prevents immediate withdrawal after voting

2. Proposal Safeguards

   • Minimum and maximum duration limits
   • Prevention of self-targeting
   • Required token holding for proposal creation

3. Voting Protection

   • Single vote per address per proposal
   • Token-weighted voting power
   • Automatic expiration enforcement

4. Execution Safety

   • Mandatory voting period completion
   • Majority vote requirement
   • Single execution prevention

Development and Testing

To interact with this contract, ensure you have:

1. A Stacks blockchain development environment
2. Clarity CLI tools installed
3. Access to STX tokens for testing

License

This project is licensed under the MIT License. See the LICENSE file for details.

Contributing

We welcome contributions to DAF Smart Contract! Please see our Guide for details on how to get started.