533 Hits in 4.8 sec

Blockchain Reference System Architecture Description for the ISA95 Compliant Traditional and Smart Manufacturing Systems

Erkan Yalcinkaya, Antonio Maffei, Mauro Onori
2020 Sensors  
The next-generation technologies enabled by the industry 4.0 revolution put immense pressure on traditional ISA95 compliant manufacturing systems to evolve into smart manufacturing systems.  ...  This heterogeneous ecosystem leads to challenges in systems scalability, interoperability, information security, and data quality domains.  ...  Conflicts of Interest: The authors declare no conflict of interest. Sensors 2020, 20, 6456  ... 
doi:10.3390/s20226456 pmid:33198154 pmcid:PMC7696017 fatcat:ez2f5ldkcre6xjp2lr2q6tgo3m

Blockchain for COVID-19: Review, Opportunities, and a Trusted Tracking System

Dounia Marbouh, Tayaba Abbasi, Fatema Maasmi, Ilhaam A. Omar, Mazin S. Debe, Khaled Salah, Raja Jayaraman, Samer Ellahham
2020 Arabian Journal for Science and Engineering  
We propose, implement, and evaluate a blockchain-based system using Ethereum smart contracts and oracles to track reported data related to the number of new cases, deaths, and recovered cases obtained  ...  Thus, developing a blockchain-based tracking system is important to ensure that the information received by the public and government agencies is reliable and trustworthy.  ...  The reputation score is initialized automatically by the smart contract and linked to the address of the oracle. Oracles can only be registered by the smart contract owner for security reasons.  ... 
doi:10.1007/s13369-020-04950-4 pmid:33072472 pmcid:PMC7549424 fatcat:2sd3utvnkfemfm3kinh653v2b4

A double design-science perspective of entrepreneurship – the example of smart contracts in the insurance market

Christian Hugo Hoffmann
2020 Journal of Work-Applied Management  
PurposeFollowing the call for strengthening the third pillar of knowledge in entrepreneurship as well as work-applied management contexts constituted by pragmatic design principles, we present a case study  ...  on an insurtech for insurance firms specialized in smart contract insurance solutions such as flight delay or ski resort insurance.Design/methodology/approachDesign science.FindingsThis not only serves  ...  The insurance contracts that could be offered in the future mainly depend on the information provided by oracles and their quality.  ... 
doi:10.1108/jwam-08-2020-0037 fatcat:bzno77w5mbcs7ln72ev727d6fq

Software Architecture and Non-Fungible Tokens for Digital Twin Applications in the Built Environment

Benjamin Teisserenc, Samad M. E. Sepasgozar
2022 Buildings  
of a smart contract for BCDTs.  ...  The aim of this paper was to propose a software architecture and to develop a framework of smart contracts for blockchain-based digital twin (BCDT) dApps throughout the lifecycle of projects in CI 4.0.  ...  The authors thank the researchers at CSIRO's Data61 for their very valuable technical advice and for the "software architecture for blockchain applications" course at the University of New South Wales  ... 
doi:10.3390/buildings12091447 fatcat:xe7ydzkdo5fj5mezwheiocicbe

5GZORRO_D.2.1. Use Cases and Requirements Definition

Adriana Fernandez August Betzler
2021 Zenodo  
Three Use Cases are proposed in 5GZORRO: Smart Contracts for Ubiquitous Computing/Connectivity: It covers mechanisms for the implementation of DLT-anchored Smart Contracts and Oracles with the objective  ...  volumes of ubiquitous and pervasive 5G services, with security and trust.  ...  The core of the system resides in the control layer enabled by the 5G-EmPOWER Operating System.  ... 
doi:10.5281/zenodo.5211350 fatcat:khbocyw5uzektiukzzcwj7dsyy

A Smart Contract-Based Dynamic Consent Management System for Personal Data Usage under GDPR

Mpyana Mwamba Merlec, Youn Kyu Lee, Seng-Phil Hong, Hoh Peter In
2021 Sensors  
We propose a smart-contract-based dynamic consent management system, backed by blockchain technology, targeting personal data usage under the general data protection regulation.  ...  A prototype of our system was designed and implemented to demonstrate its feasibility. The acceptability and reliability of the system were assessed by experimental testing and validation processes.  ...  Acknowledgments: The authors would like to thank the GoQuorum community for providing the underlying blockchain framework and tools used to implement the proof of concept of our solution.  ... 
doi:10.3390/s21237994 pmid:34883997 fatcat:jj5vnwhnabfo7ihky6ua56iwem

Empowering ISA95 compliant traditional and smart manufacturing systems with the blockchain technology

Erkan Yalcinkaya, Antonio Maffei, Hakan Akillioglu, Mauro Onori
2021 Manufacturing Review  
Blockchain technology (BCT) is a new breed of technology characterized by decentralized verifiability, transparency, data privacy, integrity, high availability, and data protection properties.  ...  have started to profoundly impact and challenge not only the ISA95 compliant traditional (ISA95-CTS) but also the smart manufacturing systems (SMMS).  ...  In other words, smart contracts play a significant role in empowering ISA95-CTS and SMMS with BCT.  ... 
doi:10.1051/mfreview/2021013 fatcat:al67kbgbirbenelgz3rxhwoy2a

Blockchain's potential in forest offsets, the voluntary carbon markets and REDD+

Grammateia Kotsialou, Karlygash Kuralbayeva, Timothy Laing
2022 Environmental Conservation  
Increasing net-zero commitments by individuals, companies and governments have been accompanied by the growth of the voluntary offset market, including Reducing Emissions from Deforestation and Forest  ...  We find that the technology may have the potential to improve verifiability, reduce transaction costs and, to a lesser degree, aid in addressing additionality and permanence concerns.  ...  We thank Professor Luitgard Veraart for a fruitful discussion and valuable feedback comments, the editor and three anonymous referees for their useful comments and Craig Stock for valuable research assistance  ... 
doi:10.1017/s0376892922000157 fatcat:h4ukc5mn3fedpf26xfqbgbnhbu

CeFi vs. DeFi – Comparing Centralized to Decentralized Finance [article]

Kaihua Qin, Liyi Zhou, Yaroslav Afonin, Ludovico Lazzaretti, Arthur Gervais
2021 arXiv   pre-print
We provide a structured methodology to differentiate between a CeFi and a DeFi service.  ...  We conclude this work with the exploration of possible synergies between CeFi and DeFi.  ...  The literature contains a number of proposals for mixer services that can be either centralized or governed by smart contracts.  ... 
arXiv:2106.08157v2 fatcat:7ebmiartzjehhofpb3u3jprfxm

Blockchain smart contracts: Applications, challenges, and future trends

Shafaq Naheed Khan, Faiza Loukil, Chirine Ghedira-Guegan, Elhadj Benkhelifa, Anoud Bani-Hani
2021 Peer-to-Peer Networking and Applications  
In this paper, we present a comprehensive survey of blockchain-enabled smart contracts from both technical and usage points of view.  ...  To do so, we present a taxonomy of existing blockchain-enabled smart contract solutions, categorize the included research papers, and discuss the existing smart contract-based studies.  ...  [98] QoS-Aware service composition It is a smart-contract based algorithm for constructing cloud service-based systems through the composition of existing services. Zhou et al.  ... 
doi:10.1007/s12083-021-01127-0 pmid:33897937 pmcid:PMC8053233 fatcat:uyy2bawvlncz3imq5f3n7jrimm

Interoperable Blockchains for Highly-Integrated Supply Chains in Collaborative Manufacturing

Paolo Bellavista, Christian Esposito, Luca Foschini, Carlo Giannelli, Nicola Mazzocca, Rebecca Montanari
2021 Sensors  
In particular, the proposed solution adopts an off-chain secure computation element invoked by a smart contract on a blockchain to securely communicate with its peered counterpart.  ...  At the same time, the usage of the Trusted Execution Environment imposes a negligible overhead.  ...  Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/s21154955 fatcat:nzixdkkhjfc6jgk7kaprkcq5um

A User-Centered Perspective for the Blockchain Development

Giuseppe Antonio Pierro
2021 Zenodo  
., software developers, are proposed to analyze the smart contracts' source code, to collect the smart contracts in a reasoned repository, and to identify code clones and boost the use of open-source libraries  ...  This work aims to fill the gap by presenting innovative methodologies and user-centred models that could help the adoption of blockchain technology by a larger number of private/public companies and individuals  ...  The development team at OpenZeppelin aims to produce high-quality code to be reused by smart contract developers.  ... 
doi:10.5281/zenodo.5767114 fatcat:b4mbedk2wjggplvgkstsj5aiqi

A Ledger of Me: Personalizing Healthcare Using Blockchain Technology

Gary Leeming, James Cunningham, John Ainsworth
2019 Frontiers in Medicine  
access of medical data and digital interventions with smart contracts.  ...  We present an analysis of existing blockchain-based health record solutions and a reference architecture for a "Ledger of Me" system that extends PHR to create a new platform combining the collection and  ...  JC lead on the design and writing of the technical architecture with design and input from JA and GL. All authors drafted, edited, and contributed to the design of the paper.  ... 
doi:10.3389/fmed.2019.00171 pmid:31396516 pmcid:PMC6668357 fatcat:nbt5xwugfbe5dpezkhlk5bysbm

Ubiquitous Health Care Monitoring Services (UHCMS): Review of Opportunities and Challenges

Norah I. Alsaeed, Nouf S. Aldahwan
2020 International Journal of Computer Applications  
Expansion in government spending on healthcare that is driven by an increasing population, limited economic and human capital plus the rise in the prevalence of chronic diseases are seen as the causes  ...  Keywords Ubiquitous computing, Ubiquitous health care, health care monitoring systems, IoT-based health care services.  ...  In this scenario, the Oracle is the smart agent that specifically interacts with the smart-contracts.  ... 
doi:10.5120/ijca2020920631 fatcat:3iiqe4667baynbzflrkghb2kxa

Blockchains and Online Dispute Resolution: Smart Contracts as an Alternative to Enforcement

Riikka Koulu
2016 SCRIPTed: A Journal of Law, Technology & Society  
To demonstrate the logic behind smart contracts more concretely, a weather bet (i.e. a bet on what the weather is going to be in a given location) is translated into a programmable smart contract and then  ...  However, the potential of blockchains reach further than their use as a currency: they can be used for the decentralised execution of programmable contracts known as smart contracts, completely without  ...  see e.g., T Bertani, "Oraclize, the provably-honest oracle service, is finally here!"  ... 
doi:10.2966/script.130116.40 fatcat:e2i4qfpicvfn3brrexw6oeiieq
« Previous Showing results 1 — 15 out of 533 results