Non-Fungible Tokens Based on ERC-4519 for the Rental of Smart Homes

The rental of houses is a common economic activity. However, there are many inconveniences that arise when renting property. lack trust between the landlord and tenant due to fraud or squatters makes it necessary involve third parties minimize risk. A blockchain (such as Ethereum) provides an ideal solution act low-cost intermediary. This paper proposes use non-fungible tokens (NFTs) based on ERC-4519 for smart home tokenization. Ethereum standard describing NFTs tied physical assets, allowing homes (assets) be linked so can interact with perform transactions, know their (owner) assigned (user), whether they authenticated not, operating mode (NFT state). payments associated process made using NFT, eliminating need additional fungible simplifying process. entire described illustrated proof concept Pycom Wipy 3.0 gateway contract programmed in Solidity, which deployed Goerli Testnet Ethereum. Experimental results show takes few tens milliseconds complete transaction, transaction costs relevant functions quite affordable.