Search results for "lohkoketju"
showing 10 items of 22 documents
Blockchain Governance : A Dynamic View
2021
The governance of blockchain systems is unique due to its decentralized nature and automatically enforced rules and mechanisms. Moreover, blockchain governance is crucial in achieving success and sustainability. With this study, we aim to advance the theory of blockchain governance and support practitioners by defining blockchain governance from a holistic viewpoint and identifying its building blocks. As a result of a systematic literature review of 75 recent articles focusing on blockchain governance, we propose a dynamic model that deepens the researchers’ and practitioners’ understanding of blockchain governance. The conceptual model can serve as a reference framework and structured fou…
Using Blockchain in Digitalizing Enterprise Legacy Systems: An Experience Report
2021
Blockchain technology and distributed ledger technology (DLT) offer a secure, distributed, and tamper-proof way to store and exchange information. However, apart from standard cryptocurrency-based networks, innovations and process improvements based on the blockchain technology have mostly remained on the conceptualizing stage and have not yet reached mass adoption. There is a high demand for practical experiences from developing blockchain and DLT based systems in various domains outside FinTech. This work seeks to contribute to this gap by presenting real-world experiences from developing a proof of concept for automatizing conditional payments in social benefits and healthcare domains. W…
Reputation-Based Blockchain for Spatial Crowdsourcing in Vehicular Networks
2022
The sharing of high-quality traffic information plays a crucial role in enhancing the driving experience and safety performance for vehicular networks, especially in the development of electric vehicles (EVs). The crowdsourcing-based real-time navigation of charging piles is characterized by low delay and high accuracy. However, due to the lack of an effective incentive mechanism and the resource-consuming bottleneck of sharing real-time road conditions, methods to recruit or motivate more EVs to provide high-quality information gathering has attracted considerable interest. In this paper, we first introduce a blockchain platform, where EVs act as the blockchain nodes, and a reputation-base…
Osakkeiden digitalisointi lohkoketjuteknologian avulla
2022
Suurinta osaa osakkeista ylläpidetään nykyään paperimuodossa tai sähköisesti yrityksen toimesta, minkä lisäksi lähinnä suurten ja vilkkaan kaupankäynnin kohteena olevien yritysten osakkeita ylläpidetään digitaalisesti arvo-osuusmuodossa arvo-osuusjärjestelmässä. Vuodesta 2012 lähtien osakkeiden digitalisointi on ollut teknisesti mahdollista myös lohkoketjuteknologialla. Tällä hetkellä suurin osa lohkoketjuteknologialla toteutetuista osakkeista perustuu security-token-viitekehykseen ja ERC20-tokenstandardiin. Tällöin osakkeet on toteutettu osakemuotoisina tokeneina. Osakkeet voidaan digitalisoida myös vahvistetun datan verkossa verifiable-claim-muodossa. Osakkeiden digitalisointi lohkoketjut…
Yhteiskunnan digimurros
2021
“The biggest part of our digital transformation is changing the way we think.” — Simeon Preston, CEO of International Markets unit in Bupa. Yhteiskunnan digimurros on laaja termi, joka kuvaa kokonaisvaltaista muutostilaa. Digimurros koskettaa lähes kaikkia elämän osa-alueita tämän päivän länsimaisessa kehittyneessä valtiossa. Digimurroksesta on puhuttu paljon muun muassa talouden ja teollisuuden konteksteissa, mutta on perusteltua sanoa, että kyseessä on yhteiskunnan kannalta paljon laajamittaisempi termi. Puhumme myös usein digitalisoituneesta yhteiskunnasta, mutta tämäkään ei itsessään ole riittävä termi ottamaan huomioon digitalisaation luomia muutoksia. Digimurros on enemmän kuin kokoel…
A System-based View of Blockchain Governance
2023
Abstract CONTEXT Governance is crucial in achieving the success and sustainability of blockchain systems. However, blockchain governance is multi-faceted, complex, dynamic, and challenging due to its decentralized nature and automatically enforced rules and mechanisms. OBJECTIVES This study aims to advance the theory of blockchain governance and support practitioners to deepen the researchers’ and practitioners’ understanding of blockchain governance. METHODS The study is a systematic literature review of 75 articles that applies systems theory to conceptualize blockchain governance as a system and parsimoniously organize its interrelated elements into a conceptual model. RESULTS The paper …
Incentive Mechanism for Edge-Computing-Based Blockchain
2020
Blockchain has been gradually applied to different Internet of Things (IoT) platforms. As the efficiency of the blockchain mainly depends on the network computing capability, how to make sure the acquisition of the computational resources and participation of the devices would be the driving force. In this work, we focus on investigating incentive mechanism for rational miners to purchase the computational resources. A edge computing-based blockchain network is considered, where the edge service provider (ESP) can provide computational resources for the miners. Accordingly, we formulate a two-stage Stackelberg game between the miners and ESP. The aim is to investigate Stackelberg equilibriu…
Initial Coin Offering (ICO) as a Fundraising Strategy : A Multiple Case Study on Success Factors
2019
Cryptocurrencies and Initial Coin Offerings (ICO) are some of the more prominent examples of currently used blockchain technology applications. Especially software startups have leveraged ICOs to gain funding early on in their lifecycles, going on to develop and create new blockchain based applications. Recently, larger companies such as Facebook have also begun to show interest in cryptocurrency, although thus far not for funding purposes in the form of ICOs. In this paper, we investigate factors that positively affect the abilities of companies to meet their fundraising goals via ICOs. We first identify a set of factors from extant literature and then seek to further confirm the effect of…
A Survey on Technologies Which Make Bitcoin Greener or More Justified
2022
According to recent estimates, one bitcoin transaction consumes as much energy as 1.5 million Visa transactions. Why is bitcoin using so much energy? Most of the energy is used during the bitcoin mining process, which serves at least two significant purposes: a) distributing new cryptocurrency coins to the cryptoeconomy and b) securing the Bitcoin blockchain ledger. In reality, the comparison of bitcoin transactions to Visa transactions is not that simple. The amount of transactions in the Bitcoin network is not directly connected to the amount of bitcoin mining power nor the energy consumption of those mining devices; for example, it is possible to multiply the number of bitcoin transactio…
UML Artefacts for a Blockchain-enabled Platform for Fairtrade
2021
Fairtrade-certified products have successfully entered the mainstream distribution channels mostly in developed countries, and these products are now sold in famous supermarket chains. Nonetheless, the packaging and labeling of products as “Fairtrade” commands premium pricing in the marketplace. How much of this, however, is valid and justified? Despite the reputable certification mechanisms for quality assurance, mass media reports suggest that much of the “surplus value” goes to the accreditation agencies themselves instead of the producers. This article proposes an agenda to set this right with a blockchain platform that provides “trust-free” assurances of verifiable labeling. Using an A…