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Dissertations / Theses on the topic 'Smart contract'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Bomprezzi, Chantal <1990&gt. "Implications of Blockchain-Based Smart Contracts on Contract Law." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amsdottorato.unibo.it/9654/1/bomprezzi_chantal_tesi.pdf.

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Smart contracts are the most advanced blockchain applications. They can also be used in the contractual domain for the encoding and automatic execution of contract terms. Smart contracts already existed before the blockchain, but they take advantage of the characteristics of that technology. Namely, the decentralised and immutable characters of the blockchain determine that no single contracting party can control, modify, or interrupt the execution of smart contracts. As every new phenomenon, blockchain-based smart contracts have attracted the attention of institutions. For example, in its Re

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2

Dotto, Marco <1990&gt. "Smart contract e tecnologie blockchain." Master's Degree Thesis, Università Ca' Foscari Venezia, 2017. http://hdl.handle.net/10579/11501.

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Tecnologie di registri diffusi che, attraverso una rete peer to peer e la crittografia, rendono possibile transazioni finanziarie e non, senza necessità di un ente terzo garante. Su questa tecnologia si fondano gli smart contract ovvero contratti autonomi ed autoeseguibili che verificano e fanno eseguire in modo automatico i contratti. Una volta scritto il contract e inserito nella rete blockchain esso non ha bisogno di altri input esterni per essere eseguito. Garantisce di essere eseguito, fornendo garanzia a tutte le parti coinvolte in esso.

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3

Foo, Xueyuan. "Design and Implementation of A Smart Grid System Based on Blockchain Smart Contract Technology." Thesis, Mittuniversitetet, Institutionen för informationssystem och –teknologi, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-40851.

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Under de senaste åren har blockchain-tekniken fått mer och mer uppmärksamhet. Det har visat speciella fördelar i digital valuta, eftersom det distribueras och dess data inte kan ändras. Med fler länder som presenterar idén om kraftsysteminnovationen har ett stort antal distribuerade kraftkällor dykt upp. Nätanslutningen för dessa distribuerade kraftkällor leder till instabil nätdrift och ökar svårigheten att hantera kraftigt. Därför finns det ett akut behov av en lösning som kan realisera direkt transaktion av distribuerad kraftförsörjning. Denna artikel gör en fördjupad analys av blockchain-t

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4

GIACCAGLIA, MICHELE. "I protocolli smart contracts applicati alla tecnologia blockchain. Problematiche e prospettive." Doctoral thesis, Università Politecnica delle Marche, 2022. http://hdl.handle.net/11566/295532.

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L’indagine prende le mosse da uno studio sull’utilizzo di una tecnologia che oggi tutti conoscono con il nome di blockchain, risalente al 1991, che suggeriva una “timbratura digitale”, mediante delle «computationally practical procedures», di documenti di testo, audio, foto e video di modo che fosse impossibile per chiunque retrodatarli o postdatarli. Premessa un’imprescindibile ricognizione della letteratura tecnico-scientifica in tema di timbratura digitale e registri informatici centralizzati e decentralizzati, lo studio è svolto principalmente attraverso l’analisi teorica delle strutture t

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Vattikutti, Avinash. "Potential of Smart Contract in Business to Business." Thesis, KTH, Industriell ekonomi och organisation (Inst.), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-246063.

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The implementation of smart contract technology with their plausible applications in a business to business are explored. The thesis work shows how Blockchain technology works on the concept of decentralized system which is beneficial to eliminate the need for central authority. The thesis focuses on elimination of challenges pertaining to the selected departments in an organization. The thesis resolves challenges pertaining to lack of transparency, traceability and significant time-delays while in the process of decision making. The influence of blockchain technology and smart contract techno

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6

Ozcan, Fatma Rana. "Category-Based Analysis of Smart Contracts." University of Cincinnati / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1563872670303612.

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7

Andreoli, Riccardo. "Stima del Gas negli Smart Contract Ethereum: una Rassegna." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2020.

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Una blockchain è una struttura dati formata da blocchi dove vengono memorizzate le transazioni, questi blocchi sono collegati tra di loro mediante un puntatore e il loro contenuto è reso sicuro sfruttando tecniche di crittografia; una delle blockchain più diffuse è quella di Ethereum. Ethereum non si occupa solo di inserire dentro i propri blocchi delle semplici transazioni, ovvero uno spostamento di Ether (la criptovaluta di Ethereum) da un account ad un altro, ma permette anche la creazione e pubblicazione di contratti intelligenti chiamati smart contract. Comunque, che si tratti di eseguire

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8

Bon, RJN. "Principal agent theory and blockchain technology: Smart contract applications." Thesis, Queensland University of Technology, 2021. https://eprints.qut.edu.au/208427/1/Ramon_Bon_Thesis.pdf.

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When economic agents have private information, the agents will be incentivised to use this information advantage by acting in a manner that does not always coincide with production and social efficiency, or the interests of the principal. This thesis investigates details specific to designing a contract with blockchain technology and smart contracts that consistently elicit efficiency and good behaviour with the best possible outcome for participating agents. We use the lens of the principal agent theory to show that implementing blockchain technology and smart contracts in contractual agreeme

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9

Johar, Khaled, and Agnieszka Inglot. "Evaluation of smart contracts implementation in e-bank transaction : A dynamic approach to measure the behaviour of transaction system with smart contract." Thesis, Mittuniversitetet, Institutionen för informationssystem och –teknologi, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-42849.

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In recent years, blockchain has received more attention in different areas wheredifferent chains show unique properties. Society has been strongly affected by thegrowth of technology and digitalization. Despite the success, the banking system is ina stagnant state in the development of the transaction system. Smart contracts havemore significant potential to be used against blockchain. The contract does not requiremanual handling but could operate independently during all hours of the day. Inaddition, limit them by being applied solely to enable an overview of completedtransactions. A challeng

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10

Lepse, James LeVoy. "What to Buy: the Underexplored Dimension of the Smart-buyer Problem." Diss., Virginia Tech, 2013. http://hdl.handle.net/10919/50623.

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Using one question of Donald Kettl\'s smart-buyer problem as the basis of investigation, this study empirically examines the relationship between five selected services contract characteristics related to requirements and evaluation ratings of 120 federal information technology investments. The five contract characteristics selected for investigation were: Contract Type, Extent Competed, Performance-Based Acquisition, Integrated Process Team, and Program Manager Qualification. Analysis of these characteristics is relevant because current federal acquisition policy advocates particular contract

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11

Bucciarelli, Stefano. "Un compilatore per un linguaggio per smart contract intrinsecamente tipato." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/19573/.

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12

Borysenko, Yuliia. "Problems and prospects of practical application of smart - contract technolog." Thesis, National Aviation University, 2021. https://er.nau.edu.ua/handle/NAU/53746.

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1. Insurance in the digital economy: problems and prospects. - [Electronic scientific professional publication]. - J .: MSU, 2018. - № 1. - Access mode: https://cutt.ly/pc9QUZt 2. Practical cases of application of blockchain - technologies in insurance in 2020. - [Electronic resource]. - Access mode: https://forinsurer.com/news/20/12/01/38816 3. Why is a blockchain in insurance a chance for an entrepreneur? - [Electronic edition]. - Access mode: https://cutt.ly/7c9QSAx 4. Blockchain (new) insurance. - [Electronic resource]. - Access mode: https://cutt.ly/Kc9QKpk 5. Internet ins

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Arrouas, David. "La blockchain au service de la question sociétale : étude de ses fonctions en droit de la responsabilité sociétale des entreprises." Electronic Thesis or Diss., Strasbourg, 2024. http://www.theses.fr/2024STRAA007.

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La blockchain à travers ses fonctions registres et smart contracts constitue un moteur de la confiance. Le registre blockchain, distribué sécurisé et sans autorité centrale, révolutionne la confiance. Le smart contract, adossé à une blockchain, auto-exécutant et inaltérable assure, lui, l'exécution automatique d'actions prédéfinies. Initialement conçus pour le secteur financier, le potentiel de cette technologie s’étend à la RSE en tant que support de la norme. Les smart social contracts seraient en mesure d’automatiser les processus liés à la RSE, tandis que le registre blockchain renforcerai

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14

Guo, Tjelvar, and Herzegh Daniel Han. "Availability of Smart Contracts that Rely on External Data." Thesis, Linköpings universitet, Programvara och system, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-169358.

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Smart contracts are digital agreements stored and executed on a blockchain. With smart contracts, multiple parties can enter into an agreement whose correct execution is guaranteed by the underlying blockchain. However, there is no inherent way for smart contracts to access data APIs external to the blockchain they reside on, which is needed in order to expand their usefulness. This thesis investigates two approaches of feeding data to a smart contract on the Ethereum blockchain, with regard to the performance metrics gas cost, block delay, and network latency. The investigation is set in the

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15

Ghelli, Melania. "Analisi Statica di Smart Contract in Ethereum: Stimare i Consumi di Gas." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/19612/.

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Il gas è l'unità di misura dello sforzo computazionale richiesto per eseguire un programma in Ethereum. Questo carburante ha un costo, espresso in ether, l'unità di conto di Ethereum. È necessario acquistare il gas prima che il programma venga eseguito. Per questa ragione talvolta può accadere che durante l'esecuzione si esaurisca e che quindi il programma si blocchi. Siccome una situazione di questo genere può comportare una perdita di denaro, è preferibile agire sul codice prima della sua esecuzione, in modo da evitare spiacevoli inconvenienti. In questo contesto entra in gioco l'analisi sta

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16

Harz, Dominik. "Trust and verifiable computation for smart contracts in permissionless blockchains." Thesis, KTH, Skolan för informations- och kommunikationsteknik (ICT), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-209430.

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Blockchains address trust through cryptography and consensus. Bitcoin is the first digital currency without trusted agents. Ethereum extends this technology by enabling agents on a blockchain, via smart contracts. However, a systemic trust model for smart contracts in blockchains is missing. This thesis describes the ecosystem of smart contracts as an open multi-agent system. A trust model introduces social control through deposits and review agents. Trust-related attributes are quantified in 2,561 smart contracts from GitHub. Smart contracts employ a mean of three variables and functions and

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17

Castiglioni, Marco. "Un confronto tra i linguaggi di programmazione per smart contract: Move e Solidity." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020. http://amslaurea.unibo.it/20439/.

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L'impresa statunitense Facebook Inc. ha deciso recentemente di espandersi nel campo delle criptovalute iniziando a sviluppare Libra, un sistema finanziario basato sulla tecnologia blockchain, con l'obiettivo di creare una moneta utilizzata a livello internazionale. Fin dall'annuncio, viste le problematiche relative alla privacy che hanno riguardato l'azienda americana, Libra è stata al centro di dibattiti e critiche portando con sè non pochi dubbi circa la possibilità di rivoluzionare il sistema dei pagamenti online. Certamente però, questo progetto può essere considerato una pietra miliare ne

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18

Бичок, А. В. "Розробка Smart-контракта в месенджер на основі блокчейн". Thesis, Чернігів, 2020. http://ir.stu.cn.ua/123456789/23434.

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Бичок, А. В. Розробка Smart-контракта в месенджер на основі блокчейн : випускна кваліфікаційна робота : 123 "Комп’ютерна інженерія" / А. Ю. Акусок ; керівник роботи В. А. Бичко ; НУ "Чернігівська політехніка", кафедра інформаційних та комп’ютерних систем. – Чернігів, 2021. – 88 с.<br>Дипломний проект на тему «Smart-контракт в месенджер на основi блокчейн» складається із вступу, основної частини, що містить розділи, в тому числі и програмну реалізацію, висновку й списку використаної літератури. Загальний обсяг роботи – 80 сторінок. Робота містить 22 рисунки. Список використаних джерел включає 5

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19

Perugini, Maria Letizia <1973&gt. "Distributed Ledger Technologies e sistemi di Blockchain: Digital Currency, Smart Contract e altre applicazioni." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2017. http://amsdottorato.unibo.it/8257/1/ml%20perugini%20-%20tesi%20di%20dottorato.pdf.

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Questo studio si propone di analizzare il complesso delle novità introdotte al sistema dei pagamenti e al trasferimento di diritti da Distributed Ledger e Blockchain, in una prospettiva che tenga conto delle applicazioni di mercato di queste innovazioni tecnologiche e della tutela giuridica degli interessi economici e delle posizioni soggettive che ne derivano. In particolar modo, l’opera vuole stimolare la discussione volta alla definizione di un quadro normativo socialmente adeguato che sostenga l’efficienza di questi strumenti in un’ottica di scambio economico globalizzato.<br>This essay ai

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20

Li, Andy. "Smarta kontrakt i svensk avtalsrätt : Huruvida Smarta kontrakt och Blockkedjor är lämpliga Avtalsinstrument." Thesis, Uppsala universitet, Juridiska institutionen, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-401562.

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The objective of this thesis paper is to investigate whether if smart contracts concluded on a blockchain are recognized as contracts under Swedish law. This is done by analyzing two fictional examples of concluded smart contracts. The study shows that smart contracts may indeed be recognized as contracts as they fulfill mechanisms for concluding contracts that are regulated in the Swedish Contracts Act, such as offer-acceptance. Smart contracts may also be concluded on mechanisms that are not directly regulated by the Contracts Act, these include tacit agreements and standard form of contract

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21

Maughelli, Francesco. "Security-related experiences with Smart Contracts over the Ethereum Blockchain." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2017. http://amslaurea.unibo.it/13991/.

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L'innovazione introdotta con le distributed ledgers e le criptovalute ha cambiato la concezione di sistemi distribuiti, creando di fatto dei network di pagamento che funzionano tramite internet e sono in grado di muovere fondi convertendoli in valute digitali e poi di nuovo in valute cartacee. All'interno del panorama delle croptovalute, Ethereum è una piattaforma creata per espandere il semplice meccanismo transazionale, aggiungendo la capacità di programmare funzionalità sulla blockchain. Il lavoro analizza le potenzialità degli Smart Contract di Ethereum e si sofferma sugli aspetti di sic

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Forti, Maicol. "Analisi di Ethereum: piattaforma decentralizzata per la creazione di smart contracts." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2018.

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Questa tesi si pone come obiettivo quello di trattare Ethereum, una piattaforma decentralizzata per la creazione e distribuzione peer-to-peer di smart contracts. Ethereum si appoggia alla tecnologia blockchain creando una piattaforma decentralizzata e sicura ed integra la possibilità di programmare e distribuire dei veri e propri contratti su di essa, gli smart contracts. La particolarità di questi contratti è che possono essere eseguiti senza la necessità di una entità centrale, un intermediario, posto a controllare la corretta esecuzione di essi. Ethereum infatti, sfruttando le proprietà

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23

Costagliola, Andrea Roberta. "Progettazione di un’architettura di decision making basata su smart contract e oracoli applicata al turismo." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021.

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La tecnologia blockchain, grazie alle sue caratteristiche di decentralizzazione, immutabilità, tracciabilità e sicurezza offre una serie di vantaggi e proprietà al settore turistico e dell’ospitalità, favorendone la crescita e lo sviluppo. Alcune implementazioni della tecnologia blockchain permettono l'esecuzione di smart contract, ovvero programmi eseguiti dai nodi della rete le cui operazioni sono transazioni della blockchain a tutti gli effetti. Essendo la blockchain un sistema isolato, è impossibile per uno smart contract comunicare con servizi o sistemi esterni. Si ricorre, dunque, all’u

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Kantur, Habil, and Charles Bamuleseyo. "How smart contracts can change the insurance industry : Benefits and challenges of using Blockchain technology." Thesis, Internationella Handelshögskolan, Högskolan i Jönköping, IHH, Informatik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-39899.

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The world is becoming more and more digitized. Recently many industries have started to research the blockchain technology and particularly smart contracts. One industry that so far has not adopted new technology in the same pace as other industries, is the insurance industry so this interview study aims at finding opportunities and challenges for insurance companies that want to learn about smart contracts and its use cases.By doing a literature review and performing interviews with blockchain experts and insurance company employees, this study found that both IT companies working with smart

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Lin, Jason. "Analysis of Blockchain-based Smart Contracts for Peer-to-Peer Solar Electricity Transactive Markets." Thesis, Virginia Tech, 2019. http://hdl.handle.net/10919/87563.

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The emergence of blockchain technology and increasing penetration of distributed energy resources (DERs) have created a new opportunity for peer-to-peer (P2P) energy trading. However, challenges arise in such transactive markets to ensure individual rationality, incentive compatibility, budget balance, and economic efficiency during the trading process. This thesis creates an hour-ahead P2P energy trading network based on the Hyperledger Fabric blockchain and explores a comparative analysis of different auction mechanisms that form the basis of smart contracts. Considered auction mechanisms ar

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Spinelli, Lorenzo. "Blockchain Ethereum e la dipendenza dall'ordine delle transazioni." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2017.

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La tesi tratta la descrizione della piattaforma Ethereum e lo studio di una vulnerabilità presente nella blockchain Ethereum chiamata dipendenza dall'ordine delle transazioni. Inizialmente vengono chiariti tutti gli elementi del sistema: la rete, la macchina virtuale, il mining, gli account, le transazioni, gli smart contract e il linguaggio Solidity. Successivamente si entra nel dettaglio definendo la vulnerabilità di dipendenza dall'ordine delle transizioni per poi mostrare vari tipi di smart contract insicuri con rispettivi esempi di attacchi e, infine, specificare delle soluzioni atte ad o

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Марченко, Ігор Олександрович, Игорь Александрович Марченко, Ihor Oleksandrovych Marchenko, Сергій Олександрович Петров, Сергей Александрович Петров та Serhii Oleksandrovych Petrov. "Розробка інформаційної системи контролю обігу медичних препаратів на базі технології блокчейн". Thesis, Вінницький національний технічний університет, 2018. http://essuir.sumdu.edu.ua/handle/123456789/68604.

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Метою даної роботи є усунення головного недоліку існуючих методів контролю обігу медичних препаратів а саме неможливості забезпечення цілісності даних та ризик порушення лікарської таємниці. В роботі запропоновано інформаційний підхід, що базується на технології блокчейн та має перевагу над існуючими методами, які використовують централізовані або розподілені сховища даних. Розроблено смарт-контракт на базі реалізації блокчейну Ethereum, який позбавлений таких недоліків як реплікація даних та можливості компрометації даних при їх передачі.<br>The purpose of this research work is address the we

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Zulkanthiwar, Amey. "VEHICLE INFORMATION SYSTEM USING BLOCKCHAIN." CSUSB ScholarWorks, 2019. https://scholarworks.lib.csusb.edu/etd/899.

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The main purpose of a vehicle information system using blockchain is to create a transparent and reliable information system which will help consumers buy a vehicle; it is a vehicle information system. The blockchain system will create a time sequence chain of events database for each vehicle from the original sale. It will include insurance, vehicle repair, and vehicle resale. This project is mainly divided into three parts. Part one is used by the administration who will create the blockchain and will give authentication to a different organization to create the blockchain. Part two will be

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Sikorska, Irina, and Ірина Сікорська. "Implementation pecularities of smart contracts in M&A on the basis of blockchain technology." Thesis, National Aviation University, 2021. https://er.nau.edu.ua/handle/NAU/51249.

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1. What Are Smart Contracts? Available at: https://www.cryptoninjas.net/what-are-smart-contracts (accessed: 26.02.2021). 2. Raskin, Max, The Law and Legality of Smart Contracts (September 22, 2016). 1 Georgetown Law Technology Review 304 (2017). Available at SSRN: https://ssrn.com/abstract=2959166 (accessed: 26.02.2021). 3. How Smart contracts can help in mergers and acquisitions? Available at: https://www.solulab.com/how-smart-contract-helps-in-merger-and-acquisition (accessed: 26.02.2021). 4. Equity funding and investment of blockchain startup companies worldwide from 2012 to 2019. Avail

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Stančíková, Ivana. "Škálovatelné hlasování s ochranou soukromí hlasů založené na blockchainu." Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2021. http://www.nusl.cz/ntk/nusl-445567.

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The main subject of this work is the assessment of electronic voting systems with regard to their required and achieved properties. The goal of this project is designing an electronic voting protocol that satisfies the requirements for privacy protection while also being scalable and fault-tolerant. Existing protocols are examined and compared according to their properties. The design proposed in this work uses smart contracts on blockchain and combines the approaches from the examined solutions. Scalability is achieved by dividing the process of voting between several smart contracts. Each of

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Morotti, Daniele. "una tecnica per l'anticontraffazione basata su sistema blockchain." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amslaurea.unibo.it/23518/.

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In questo elaborato verranno illustrate inizialmente le caratteristiche principali della blockchain e il fenomeno della contraffazione, con i vari metodi utilizzati al giorno d'oggi. In seguito verranno illustrati e confrontati i vari sistemi anticontraffazione dello stato dell'arte e quello proposto in questo elaborato. In�fine verrà illustrata nel dettaglio l'implementazione del codice degli smart contract e verranno indicati alcuni test eseguiti sul sistema. La tecnologia blockchain potrebbe contrastare efficacemente il fenomeno della contraffazione in quanto permette di salvare informazion

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Flores, Luis, Yoseline Sanchez, Edgar Ramos, Fernando Sotelo, and Nabeel Hamoud. "Blockchain in Agribusiness Supply Chain Management: A Traceability Perspective." Springer, 2021. http://hdl.handle.net/10757/656091.

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El texto completo de este trabajo no está disponible en el Repositorio Académico UPC por restricciones de la casa editorial donde ha sido publicado.<br>The demand for agricultural products for export is increasing every year. Thus, there is a need for a traceable and more communicative agricultural supply chain among its stakeholders. In addition, the increase in controls, verifications and communications in each SC agent makes agility and chain difficult, generating distrust among those involved. To overcome this issue, we consider Blockchain. Blockchain is a disruptive technology to decentra

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SCIUME', Giuseppe. "Distributed Demand-Response Certification using Blockchain Technology." Doctoral thesis, Università degli Studi di Palermo, 2021. http://hdl.handle.net/10447/479137.

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Gurioli, Andrea. "Ethereum alla prova dei fatti: Analisi sull'utilizzo degli smart contracts per l'implementazione di opzioni nei mercati finanziari." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2020. http://amslaurea.unibo.it/20602/.

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Spesso, quando si parla di mercati finanziari, si visualizza subito un'entità centralizzata parte del paradigma monolitico creatosi. E' dunque difficile discostarsi col pensiero da una metodologia così radicata nella struttura sociale qual è la centralizzazione dei mercati, così difficile che la mente evita di abbozzarne una versione differente. Lo sviluppo informatico, fautore di innovazione, è stato, attraverso l'avvento della piattaforma decentralizzata Ethereum, in grado di ristrutturare questo paradigma rompendo lo stigma (solo all'apparenza immutabile) della centralizzazione. Scopo princ

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Ghaffari, Fariba. "A novel blockchain-based architecture for mobile network operators : Beyond 5G." Electronic Thesis or Diss., Institut polytechnique de Paris, 2023. http://www.theses.fr/2023IPPAS009.

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Alors que l'architecture centralisée et autonome existante des opérateurs de réseaux mobiles (ORM) fournit une connectivité à des milliards d'utilisateurs, ils souffrent d'un manque de mécanismes techniques pour améliorer la collaboration entre les MNO et les autres fournisseurs.Cela a des impacts sur les coûts de mutualisation, ainsi que sur la consommation d'énergie et l'impact environnemental. Cela peut également empêcher l'avènement de modèles commerciaux plus collaboratifs avec d'autres fournisseurs ou même avec des clients. De plus, la complexité des réseaux au-delà de la 5G peut dépasse

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Moca, Francesco. "State Channel su tecnologie blockchain: un caso di studio sui giochi multiutente." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/19160/.

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Lo sviluppo di applicazioni decentralizzate basate su Blockchain è ostacolato dagli attuali limiti di scalabilità della tecnologia che ne impediscono l'adozione in larga scala. In questo lavoro di tesi vengono analizzate alcune soluzioni per migliorare l'efficienza della blockchain, in particolare riferite alla piattaforma Ethereum, per poi presentare un'applicazione web basata su una di queste tecniche. Il progetto di tesi consiste in un esempio di gioco decentralizzato per due giocatori basato sugli state channel: un protocollo peer-to-peer regolato da smart contract che consente di aggior

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Faieta, Stefano. "Axie Incubator: Implementazione di una nuova feature in un'applicazione decentralizzata sulla blockchain di Ethereum." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2021.

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Nella parte iniziale di questa tesi viene trattato il funzionamento della blockchain di Ethereum, con lo scopo di mettere in evidenza le dinamiche che avvengono durante una transazione in cui si interagisce con uno Smart Contract. Sono stati analizzati in particolare due standard a livello applicativo che hanno come finalità quella di garantire la massima interoperabilità tra applicazioni decentralizzate che sfruttano i token, che siano essi fungibili (ERC-20) o non fungibili (ERC-721). Viene in seguito introdotto il gioco Axie Infinity, il quale si serve della blockchain di Ethereum per deter

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Bortes, Christian. "Evaluating the Effectiveness of the SMART Contract Signing Strategy in Reducing the Growth of Swedish Adolesent´s Substance Use and Problem Behaviors." Thesis, Örebro universitet, Institutionen för hälsovetenskaper, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-58258.

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Costa, Pier Francesco. "Ethereum blockchain as a decentralized and autonomous key server: storing and extracting public keys through smart contracts." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2017. http://amslaurea.unibo.it/14306/.

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Ethereum is an open-source, public, blockchain-based distributed computing platform featuring smart contract functionality. It provides a decentralized Turing-complete virtual machine which can execute scripts using an international network of public nodes. The purpose of this thesis is to build a decentralized and autonomous key server using Ethereum smart contracts to store and retrieve information. We did an overall introduction of Bitcoin and Ethereum to provide a background of the study. We then analyzed the current problems of key discovery with traditional servers and web-of-trust. We

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Draghetti, Davide. "Modelli e metodi simulativi per tracciabilità e smart pricing nelle supply chain di prodotti deperibili." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021.

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Obiettivo: fornire un modello di track and trace per prodotti deperibili lungo una cold supply chain, implementando algoritmi di dynamic pricing, al fine di ottenere una funzione dinamica di prezzo che tenga in considerazione la perdita di valore dei prodotti stessi durante il loro ciclo di vita. Il modello proposto verrà infine trattato, a livello teorico, in un contesto tecnologico estremamente attuale come quello della blockchain, un registro digitale che, grazie alle proprie caratteristiche, è in grado di fornire ottimi spunti e implicazioni pratiche al mondo della logistica e della filier

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Hsu, Tsan-Hsiang, and 徐粲翔. "Gcoin Smart Contract Architecture." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/3m2b4q.

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KE, BAI-YUEH, and 柯百嶽. "Pallet.io : Cross-Chain Smart Contract." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/92fxzr.

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碩士<br>國立臺灣大學<br>資訊工程研究所<br>106<br>With the advent of Bitcoin in 2008, blockchain technology has been paid much attention to society every year and has inspired the development of many other blockchain technology. The idea smart contract, which was proposed in 1994, was successfully merged into Ethereum. It brings the development of blockchain technology into the next era. Smart contract is one of the most important features in blockchain technology nowadays, which allows users to trade money, property of anything valuable without a middleman. Compared to traditional contracts, it can save a

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Liu, Lee, and 劉皪. "State-based modifiable smart contract." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/ykt72w.

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碩士<br>國立政治大學<br>資訊管理學系<br>107<br>A smart contract deployed on the blockchain is meant to be immutable; however, in practice, the consensus and operations among parties may change as time goes by, e.g., to fix security frauds, leading to the need of flexibility on contract modification. We propose a state-based smart contract framework that facilitates contract modification, where a deployed smart contract can be altered partially with update operations or control logic while keeping previous transactions (blocks) consistent. Specifically, we divide an ordinary contract into four functional con

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Mendes, Diogo Alexandre Valente. "Smart-contract Blockchain with Secure Hardware." Master's thesis, 2020. http://hdl.handle.net/10362/116772.

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In recent years, blockchains have grown in popularity and the main reason for this growth is the set of properties that they provide, such as user privacy and a public record of transactions. This popularity is verifiable by the number of cryptocurrencies currently available and by the current market value of Bitcoin currency. Since its introduction, blockchain has evolved and another concept closely linked with it is smart-contract, which allows for more complex operations over the blockchain than simple transactions. Nevertheless, blockchain technologies have significant problems that

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WU, PENG-TA, and 鄔朋達. "Smart Contract of Organic Agriculture Subsidy." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/e7ucp8.

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碩士<br>東吳大學<br>資訊管理學系<br>107<br>Recently, the blockchain technology has been valued. With the support of resources across many industries, an increased number of innovations are made available, the emerging commercial modes in the financial technology in particular. The government, by employing the smart contracts, can change the way they deliver services and business processes to reduce the administrative cost. The government, in order to protect the interests of farmers, implements plural subsidy policies. The subsidy amount exceeds over half of the annual agricultural budget and the subsidy

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SUN, WEI-TING, and 孫尉庭. "Smart Contract Application in Funeral Industry." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/8694p3.

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碩士<br>東海大學<br>高階經營管理碩士在職專班<br>106<br>This study aims to explore the characteristics of smart contracts in the blockchain: users can't deny that all changes can be tracked and recorded, it is difficult to tamper with credibility, confidentiality, to achieve the convenience of planning for the Pre Need funeral contract. Because of the rapid transformation of modern society, people have become gradually enlightened for the concept of endowment and end of life, and it is a task that everyone has to face the arrangement funeral. However, in the face of the end of life, people are still powerless fo

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Xiong, Zhan-Xuan, and 熊展軒. "Ethereum Smart Contract Concurrent Execution Model." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/w6829t.

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碩士<br>國立臺灣大學<br>資訊工程學研究所<br>107<br>Since the advent of Bitcoin in 2008, the decentralized ledger system, based on blockchain technology, has flourished. Initially, in the world of Bitcoin, users are free to transfer their assets (Bitcoin) without a centralized organization. Bitcoin built the most reliable financial system in the virtual world. In the network, that the users are not trust in each other, asset transfer can still be performed based on such the system. In 2013, Vitalik Buterin proposed a new generation of decentralized ledger system, Ethereum. Ethereum added a complete programming

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Lin, Hsiu-Ping, and 林修平. "Semi-Centralized Blockchain Smart Contract : Smart Contract of Centralized verification and Off-Chain Execution on Ethereum Blockchain." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/j2w3tk.

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碩士<br>國立臺灣大學<br>資訊工程學研究所<br>105<br>Smart contract deployed on Blockchain has the advantage of decentralization. However, with the increasing popularity and surging market cap of Blockchain tech- nology such as Ethereum, it has become much more expensive and difficult to deploy and execute a smart contract on Blockchain. We propose a semi-centralized smart contract architecture to move the smart contract execution and verification away from the Ethereum blockchain. We hope applications can improve efficiency and save execution cost of their smart contract by balancing the trade-off between cent

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Wu, Yu-Ching, and 吳俞慶. "The interpretation and application of smart contracts – from the perspective of contract laws." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/58mb4u.

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碩士<br>國立政治大學<br>國際經營與貿易學系<br>107<br>The original concept of smart contracts could be defined as an electronic agreement composed of a series of commitments that can be executed automatically and stored on computers. However, due to the development of distributed ledger technology (DLT) and blockchain, the idea of smart contracts combined with these emerging technologies becomes even broader than ever. In other words, it can not only be used as a means of contracting, a tool to assist the fulfillment of the contract, but can also be applied in different ways not necessary related to contractual

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HSU, CHAN-YUAN, and 許展源. "Digital Rights Management Based on Smart Contract." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/n7q5x9.

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碩士<br>逢甲大學<br>資訊工程學系<br>105<br>Digital rights management (DRM) is widely used to control users’ access to digital content by limiting their rights to use, view, copy, and modify their purchased content. By preventing users from disseminating content without authorization, DRM protects the rights of digital content creators. DRM is mostly centrally managed. Sellers can unilaterally revoke the rights to access sold digital content, which hurts buyers’ interests. In this paper, smart contract technology and blockchain technology are leveraged to achieve decentralized digital content management. D

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