Resumen de Secure Storage System Using IPFS and Oracles for Blockchain-Based Decentralized Applications

Pedro García Cereijo, Paula Fraga-Lamas , Tiago M. Fernández-Caramés

• This paper presents a decentralized architecture that uses an oracle for file uploading to IPFS (InterPlanetary File System) via smart contracts for blockchain-based decentralized applications (dApps). The combination of a blockchain and IPFS provides an efficient and secure solution for data storage, ensuring immutability and traceability, while IPFS provides distributed storage. Since blockchains cannot interact directly with external systems like IPFS, an oracle is proposed as a bridge for such an interaction. This solution is designed and validated in a realistic scenario, demonstrating its effectiveness by enhancing security and efficiency when storing data in IPFS and only recording critical information on the blockchain, ensuring integrity through its immutability.