Smart Contracts

Built By DAO operates on 20 smart contracts deployed on Base (Ethereum L2). This section provides technical documentation for each contract.

---

📜 Contract System

⛓️ Network	📜 Contracts	🔧 Solidity	🆔 Chain ID
Base (L2)	20	0.8.33	8453

🎯 Standards: ERC-20, ERC-721, OpenZeppelin UUPS, Role-based Access Control

---

🪙 Token Contracts

🪙 Token Contracts

Contract	Type	Description
BLTBYToken	ERC-20	External speculation/trading token
EQTBLTToken	Modified ERC-20	Internal work-based currency (non-transferable)

🎫 NFT Contracts

💰 Financial Contracts

🏢 Business Contracts

🏛️ Governance Contracts

⏱️ Tracking & Vesting

---

🔐 Common Patterns

Founder → Multisig Transition

All contracts implement a one-way transition from founder control to multisig governance:

function enableMultisig(address _multisig) external onlyFounder {
    if (multisigEnabled) revert MultisigAlreadyEnabled();
    multisigWallet = _multisig;
    multisigEnabled = true;
}

Key characteristics:

• Irreversible once enabled

• Transfers admin control to DAO multisig

• Designed for progressive decentralization

---

Soul-Bound NFTs

NFT contracts override _update() to prevent transfers:

function _update(address to, uint256 tokenId, address auth) internal override {
    address from = _ownerOf(tokenId);
    if (from == address(0)) return super._update(to, tokenId, auth); // Allow mint
    if (to == address(0)) return super._update(to, tokenId, auth);   // Allow burn
    if (whitelistedAddresses[to]) return super._update(to, tokenId, auth); // Emergency
    revert TransferNotAllowed();
}

Transfer rules:

Action	Allowed
🟢 Minting	Yes
🟢 Burning	Yes
🟡 Transfer to whitelisted (emergency)	Yes
🔴 Transfer between users	No

---

Multi-Stablecoin Support

Financial contracts normalize across different decimal standards:

function _normalizeToUsd(address token, uint256 amount) internal view returns (uint256) {
    uint8 tokenDecimals = stablecoinDecimals[token];
    if (tokenDecimals == 6) return amount;
    if (tokenDecimals > 6) return amount / (10 ** (tokenDecimals - 6));
    return amount * (10 ** (6 - tokenDecimals));
}

Supported stablecoins:

Token	Decimals
USDC	6
USDT	6
DAI	18
PYUSD	6

---

🔑 Role Reference

Role	Description	Used In
DEFAULT_ADMIN_ROLE	Can grant/revoke all roles	All contracts
ADMIN_ROLE	Administrative functions	Most contracts
MINTER_ROLE	Mint tokens/NFTs	BLTBYToken, EQTBLTToken, NFTs
MANAGER_ROLE	Operational management	Bank, Investor, NFTs
GOVERNANCE_ROLE	Execute governance decisions	Governance, Treasury
REVENUE_SOURCE_ROLE	Record revenue	Treasury
SERVICE_MANAGER_ROLE	Manage services	AccessControl, Redemption
FULFILLMENT_ROLE	Fulfill redemptions	RedemptionContract
PROPERTY_MANAGER_ROLE	Manage properties/leases	RentalAndRebate
RECORDER_ROLE	Record activity	ActivityTracker
SNAPSHOT_ROLE	Submit voter snapshots	Governance

---

🔗 Development Resources

• 📜 Full Contract Index

• 🏗️ Architecture Deep Dive

• 🏛️ Governance V2.1 Spec

• 🔐 Security Analysis

• 🧪 Test Results

---

🔗 Related Pages

BLTBYTokenEQTBLTTokenDAOMembershipNFTGovernanceTreasury