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A Systematic Literature Review on Blockchain Oracles: State of Research, Challenges, and Trends

  • To enable data exchange between the Blockchain protocol (on-chain) and the real world (off-chain), e.g., non-Blockchain-based applications and systems, a software called Oracle is used [3]. Blockchain oracle is an important component in the use of off-chain data for on-chain smart contracts. However, there is limited scientific literature available on this important blockchain topic. Therefore, in this paper, a novel systematic literature review based on intelligent methods, e.g., information linking, topic clustering and focus identification through frequency calculations, is proposed. Thus, the current state of scientific research interest, content and challenges, and future research directions for blockchain oracles are identified. This paper shows that there is little unbiased literature that does not call oracles a problem. From the results of this new literature review framework, relevant areas of data handling and verification with blockchain oracles are identified for future research.

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Author:Viola Süß, Bogdan Franczyk
Parent Title (German):Konferenzband zum Scientific Track der Blockchain Autumn School 2023
Publisher:Hochschule Mittweida
Place of publication:Mittweida
Document Type:Conference Proceeding
Year of Completion:2023
Publishing Institution:Hochschule Mittweida
Contributing Corporation:Leipzig University, Business Information System Institute
Release Date:2023/10/17
Tag:Bibliometric analysis; Intelligent methods
GND Keyword:Blockchain; Smart contract
Page Number:9
First Page:1
Last Page:9
Open Access:Frei zugänglich
Licence (German):License LogoUrheberrechtlich geschützt