Blockchain and smart contracts technologies research issues and applications

This book discusses the various open issues of blockchain technology, such as the efficiency of blockchain in different domains of digital cryptocurrency, smart contracts, smart education system, smart cities, cloud identity and access, safeguard to cybersecurity and health care. For the first time in human history, people across the world can trust each other and transact over a large peer-to-peer networks without any central authority. This proves that, trust can be built not only by centralized institution but also by protocols and cryptographic mechanisms. The potential and collaboration between organizations and individuals within peer networks make it possible to potentially move to a global collaborative network without centralization. Blockchain is a complex social, economic and technological phenomenon.



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Blockchain and smart contracts : Technologies, research issues and applications


Many believe that smart contract can provide an innovative solution to some of the real-world problems. Thus, it is expected that blockchain-based smart contracts can dramatically increase economic efficiency and productivity in financial, banking and capital markets. In fact, smart contracts are a powerful novel tool for major changes in the financial, legal and contractual systems of the future, which will change the business model, create efficiency and added value, reduce legal disputes and increase the speed and transparency of financial transactions.

Another innovative solution of smart contracts is their wide application in the internet of objects IoT. For example, smart contract can be used to track goods in smart transport system, or it can be applied in future smart cars without a driver in order to pay for gasoline when fueling or pay for the insurance in the case of an accident automatically and immediately.

Due to the widespread applications of smart contract in e-government, supply chain, intellectual property creation, patient electronic records, electronic voting, electronic insurance, smart transport and so on, its importance is clearly identified.

Resumo Many believe that smart contract can provide an innovative solution to some of the real-world problems. Mothering multiples: A meta—synthesis of the qualitative research. Finfgeld D. Meta synthesis: The state of the art—so far. Qualitative Health Research, 13 7 : p. Jensen, L. Allen A. Meta-synthesis of qualitative findings. Qualitative Health Research, 6 4 : p. Sandelowski, M. Barroso J. Handbook for synthesizing qualitative research. New York, NY: Springer, Zimmer L.

Journal of Advanced Nursing, 53 3 : p. Szabo N. Buterin V. A next-generation smart contract and decentralized application platform. Alharby M. Nakamoto S. Bitcoin: a peer-to-peer electronic cash system. Luu L. Chu D. Olickel H. Saxena P. Hobor A. Making Smart Contracts Smarter. Shao Q. Jin C. Zhang Z. Qian W. Blockchain: Architecture and Research Progress. Chinese Journal of Computer. Yuan Y. Wang F. Towards blockchain-based intelligent transportation systems.

Christidis K. Devetsikiotis M. Blockchains and Smart Contracts for the Internet of Things. Kosba A. Miller A. Shi E. Wen Z. Papamanthou C. Qualitative meta-synthesis: a question of dialoguing with texts. Journal of Advanced Nursing, ; — Beck j. Mthering multiples: A meta-synthesis of the qualitative reserch. Sandelowski M. Barros J. Handbook for synthesizing qualitative research, Springer publishing company Inc, Qualitative Health Research, ; Blockchain: the state of the art and future trends.

Acta Automatica Sinica, vol. Como Citar.



Future of ethereum

Blockchain is a decentralized transaction and data management technology developed first for Bitcoin cryptocurrency. The interest in Blockchain technology has been increasing since the idea was coined in The reason for the interest in Blockchain is its central attributes that provide security, anonymity and data integrity without any third party organization in control of the transactions, and therefore it creates interesting research areas, especially from the perspective of technical challenges and limitations. In this research, we have conducted a systematic mapping study with the goal of collecting all relevant research on Blockchain technology. Our objective is to understand the current research topics, challenges and future directions regarding Blockchain technology from the technical perspective. We have extracted 41 primary papers from scientific databases.

The results show that focus in over 80% of the papers is on Bitcoin system and less than 20% deals with other Blockchain applications including.

Blockchain-integrated technologies for solving supply chain challenges

In recent years, the rapid development of blockchain technology and cryptocurrencies has influenced the financial industry by creating a new crypto-economy. Then, next-generation decentralized applications without involving a trusted third-party have emerged thanks to the appearance of smart contracts, which are computer protocols designed to facilitate, verify, and enforce automatically the negotiation and agreement among multiple untrustworthy parties. Despite the bright side of smart contracts, several concerns continue to undermine their adoption, such as security threats, vulnerabilities, and legal issues. 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. Based on the findings from the survey, we identify a set of challenges and open issues that need to be addressed in future studies. Finally, we identify future trends. All Works. Advanced Search.


Smart Contracts

blockchain and smart contracts technologies research issues and applications

Recent innovations have created significant developments in data storage and management. These new technologies now allow for greater security in databases and other applications. Decentralized Computing Using Blockchain Technologies and Smart Contracts: Emerging Research and Opportunities is a concise and informative source of academic research on the latest developments in block chain innovation and their application in contractual agreements. Highlighting pivotal discussions on topics such as cryptography, programming techniques, and decentralized computing, this book is an ideal publication for researchers, academics, professionals, students, and practitioners seeking content on utilizing block chains with smart contracts.

A brief glance at the present and future of the Web3 communication layer in

Smart Contracts: The Next Big Blockchain Application

You have probably heard that blockchain technology and "smart contracts" are going to revolutionize our lives. This is the so-called "oracle problem," a technological challenge that is still hampering any chance that blockchain will break out and become a part of our everyday lives. Until now, perhaps. A startup called Chainlink is combining its software with a trusted hardware system called Town Crier, developed by a leading academic cryptocurrency research group. Together, they might be closer than ever to solving the problem. Smart contracts are computer programs stored in a blockchain.


Emerging Technologies: Implementing Blockchain Smart Contracts in a Business Process

Professor J. His research on information technology focuses on workflow technology and applications in knowledge distribution, e-learning, supply chain management, organizational performance management, and services computing. His research interests are in the areas of social media marketing, and big data analysis in finance and organizations. If you have been on Planet Earth over the last couple of years, you cannot fail to have heard of Bitcoin and its underlying technology, blockchain. Although the two concepts are often used interchangeably in the domain of cryptocurrency, in broad context Bitcoin and blockchain mean very different things. Bitcoin, an invention of cryptocurrency society, has grown into a mainstream business phenomenon over the past couple of years. In simple terms, Bitcoin is a type of digital money that is independent of any government or bank and can be used to exchange value among anyone who has access to the internet. Blockchain, on the other hand, is the supporting technology that enables Bitcoin Nakamoto

THE MODEL OF CHALLENGES OF SMART CONTRACT BASED ON BLOCKCHAIN TECHNOLOGY AND DISTRIBUTED LEDGER USING META-SYNTHESIS RESEARCH METHOD · Amin Pooya.

Smart Contracts on Blockchain, Challenges and Government Applications-Legal Insights for Lawmakers.

In recent years, the rapid development of blockchain technology and cryptocurrencies has influenced the financial industry by creating a new crypto-economy. Then, next-generation decentralized applications without involving a trusted third-party have emerged thanks to the appearance of smart contracts, which are computer protocols designed to facilitate, verify, and enforce automatically the negotiation and agreement among multiple untrustworthy parties. Despite the bright side of smart contracts, several concerns continue to undermine their adoption, such as security threats, vulnerabilities, and legal issues. In this paper, we present a comprehensive survey of blockchain-enabled smart contracts from both technical and usage points of view.


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Many believe that smart contract can provide an innovative solution to some of the real-world problems. Thus, it is expected that blockchain-based smart contracts can dramatically increase economic efficiency and productivity in financial, banking and capital markets.

Over the last few years, both researchers and practitioners have considered the adoption of blockchain-based architectures to build trusted information systems. Thanks to their distributed nature and their ability to reach consensus among untrusted parties, blockchains proved to be successful in exchanging Thanks to their distributed nature and their ability to reach consensus among untrusted parties, blockchains proved to be successful in exchanging assets e. In particular, it is almost impossible for a single party or a restricted group to alter or delete the information stored in the blockchain. In addition, second-generation blockchains have introduced the so-called smart contracts, arbitrary agreements embodied by immutable code executed among multiple participants with possibly conflicting interests. Despite the advantages of blockchains, building an information system — or part of it — on top of a blockchain is not sufficient for making it trusted. Although the mechanisms handling the execution of smart contracts, as well as the ones handling data that originate from the blockchain itself, can be considered secure, the same cannot be said for the smart contracts and for the data that they receive as input.

Self-aware blockchains can monitor compliance and avoid disputes — but there is a catch. Smart contracts were pioneered with the Ethereum cryptocurrency, which complemented the distributed ledger technology popularised in Bitcoin with a scripting language, called Solidity, that allows blockchain operators to define terms that regularly evaluated and act on blockchain data. If a data element falls outside of the prescribed parameters, automatic actions can be taken — enabling blockchain-based smart contracts to provide a level of intelligence that cannot be matched by conventional paper-based contracts.


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