2020/03/19 by Abdeljalil Beniiche, Beniiche, Abdeljalil · 3 citations
Computer Science · #Blockchain Technology Applications and Security #Cloud Computing and Resource Management #Cryptography and Security (cs.CR) #Distributed #FOS: Computer and information sciences #Parallel #Spam and Phishing Detection #and Cluster Computing (cs.DC)
paper · pdf · doi:10.48550/arxiv.2004.07140
openalex publication_date 2020/03/19 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The limitation with smart contracts is that they cannot access external data which might be required to control the execution of business logic. Oracles can be used to provide external data to smart contracts. An oracle is an interface that delivers data from external data outside the blockchain to a smart contract to consume. Oracle can deliver different types of data depending on the industry and requirements. In this paper, we study and describe the widely used blockchain oracles. Then, we elaborate on his potential role, technical architecture, and design patterns. Finally, we discuss the human oracle and his key role in solving the truth problem by reaching a consensus about a certain inquiry and tasks.