Which Event Happened First? Deferred Choice on Blockchain Using Oracles

Ladleif, Jan; Weske, Mathias

doi:10.3389/fbloc.2021.758169

Cited by 3 publications

(1 citation statement)

References 25 publications

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“…Most of the contributions to business process management applications were from the University of Insubria and the University of Potsdam. However, their focus diverged, given that the first focused on the privacy of business process transactions, and the second was oriented on the timeliness of registered transactions [90]- [94]. Both institutions adequately balanced theoretical and empirical work.…”

Section: Oracle Appliedmentioning

confidence: 99%

Overview of Blockchain Oracle Research

Caldarelli¹

2022

Preprint

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Whereas the use of distributed ledger technologies has previously been limited to cryptocurrencies, other sectors—such as healthcare, supply chain, and finance—can now benefit from them because of bitcoin scripts and smart contracts. However, these applications rely on oracles to fetch data from the real world, which cannot reproduce the trustless environment provided by blockchain networks. Despite their crucial role, academic research on blockchain oracles is still in its infancy, with few contributions and a heterogeneous approach. This study undertakes a bibliometric analysis and aims to shed light on the institutions and authors that are actively contributing to the oracle literature, intending to promote progress and cooperation. On the one hand, although worldwide collaboration is still lacking, various authors and institutions are working in similar directions. On the other hand, most areas of research are scarcely explored, and others are even untouched.

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Section: Oracle Appliedmentioning

confidence: 99%

Overview of Blockchain Oracle Research

Caldarelli¹

2022

Preprint

View full text Add to dashboard Cite

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Which Event Happened First? Deferred Choice on Blockchain Using Oracles

Ladleif

Weske

2021

Front. Blockchain

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First come, first served: Critical choices between alternative actions are often made based on events external to an organization, and reacting promptly to their occurrence can be a major advantage over the competition. In Business Process Management (BPM), such deferred choices can be expressed in process models, and they are an important aspect of process engines. Blockchain-based process execution approaches are no exception to this, but are severely limited by the inherent properties of the platform: The isolated environment prevents direct access to external entities and data, and the non-continual runtime based entirely on atomic transactions impedes the monitoring and detection of events. In this paper we provide an in-depth examination of the semantics of deferred choice, and transfer them to environments such as the blockchain. We introduce and compare several oracle architectures able to satisfy certain requirements, and show that they can be implemented using state-of-the-art blockchain technology.

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Overview of Blockchain Oracle Research

Caldarelli

2022

Future Internet

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Whereas the use of distributed ledger technologies has previously been limited to cryptocurrencies, other sectors—such as healthcare, supply chain, and finance—can now benefit from them because of bitcoin scripts and smart contracts. However, these applications rely on oracles to fetch data from the real world, which cannot reproduce the trustless environment provided by blockchain networks. Despite their crucial role, academic research on blockchain oracles is still in its infancy, with few contributions and a heterogeneous approach. This study undertakes a bibliometric analysis by highlighting institutions and authors that are actively contributing to the oracle literature. Investigating blockchain oracle research state of the art, research themes, research directions, and converging studies will also be highlighted to discuss, on the one hand, current advancements in the field and, on the other hand, areas that require more investigation. The results also show that although worldwide collaboration is still lacking, various authors and institutions have been working in similar directions.

show abstract

Which Event Happened First? Deferred Choice on Blockchain Using Oracles

Cited by 3 publications

References 25 publications

Overview of Blockchain Oracle Research

Overview of Blockchain Oracle Research

Which Event Happened First? Deferred Choice on Blockchain Using Oracles

Overview of Blockchain Oracle Research

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