Since bitcoin is the main virtual currency, it decided to create wrapped bitcoin where it offers the power of bitcoin with the flexibility of ERC20 tokens, (WBTC) provides greater liquidity to ethereum including decentralized exchanges (DEX) and financial applications, since the vast majority of volume trading and trading takes place on decentralized bitcoin exchanges. The (WBTC) gives a change to that by carrying out the liquidity of bitcoin to the DEX thus giving possibility to the use of bitcoin for token transactions the WBTC since it brought bitcoin to the ERC20 technology giving ease for smart contracts in its platform.