RealtyChain
A comprehensive DeFi system for tokenizing real estate properties using ERC1155 tokens with integrated Chainlink oracles for automated valuation, yield distribution, and cross-chain functionality.
About
The problem it solves RealtyChain addresses the inefficiencies, inaccessibility, and lack of transparency in traditional real estate investment. Real estate remains largely illiquid, burdened by high entry barriers, fragmented ownership, and slow settlement processes. RealtyChain solves this by tokenizing real estate into fractional ERC1155 tokens, enabling global investors to own, trade, and earn passive income from property assets seamlessly. With onchain rent distribution, automated valuations, and cross-chain functionality, RealtyChain democratizes access to real estate while maintaining full transparency, liquidity, and programmability on the blockchain.
How it's made
Challenges we ran into A major challenge was integrating multiple Chainlink services—Functions, VRF, Automation, and CCIP—within a cohesive architecture without compromising security or gas efficiency. Coordinating offchain valuation logic with onchain execution using Functions required precise encoding, subscription management, and error handling. Another key difficulty was ensuring cross-chain token consistency using CCIP while preventing reentrancy and misrouted messages. Managing role-based access across vaults, token contracts, and CCIP receivers also added architectural complexity that required careful contract design and modularization.