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Inherits: ERC2771Recipient

State Variables​

number​

uint256 public number;

collateralThreshold​

uint256 public collateralThreshold;

nextOrderId​

uint256 nextOrderId;

orders​

mapping(uint256 => Order) public orders;

suppliedCollateral​

mapping(address => uint256) public suppliedCollateral;

totalCollateral​

uint256 totalCollateral;

wrapped​

BobWrappedBtc wrapped = new BobWrappedBtc();

Functions​

constructor​

constructor(uint256 threshold);

mint​

lock COL in exchange for zBTC and cCOL

function mint() public payable;

requestSwap​

request zBTC to be redeemed for given amount of BTC.

function requestSwap(uint256 amountZbtc, uint256 amountBtc, BitcoinAddress calldata bitcoinAddress) public;

acceptSwap​

function acceptSwap(uint256 id) public;

cancelSwap​

function cancelSwap(uint256 id) public;

executeSwap​

function executeSwap(uint256 id, TransactionProof calldata) public;

liquidate​

function liquidate(uint256 amountZbtc) public;

withdraw​

function withdraw() public;

colToBtc​

function colToBtc(uint256 collateral) internal pure returns (uint256);

btcToCol​

function btcToCol(uint256 collateral) internal pure returns (uint256);

Structs​

Order​

struct Order {
    bool open;
    uint256 amountZbtc;
    uint256 amountBtc;
    address requesterAddress;
    address accepterAddress;
    BitcoinAddress bitcoinAddress;
}

BitcoinAddress​

struct BitcoinAddress {
    bytes scriptPubKey;
}

TransactionProof​

struct TransactionProof {
    uint256 dummy;
}