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Blockchain - What it is, and a non-financial use case
KTH, School of Computer Science and Communication (CSC).
KTH, School of Computer Science and Communication (CSC).
2017 (English)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesisAlternative title
Blockkedja - Vad det är, och ett icke-finansiellt användnigsområde (Swedish)
Abstract [en]

 The interest in blockchain technology has risen dramatically in a short period of time. Conceptualized by the release of Bitcoin in 2008, the technology has grown at a steady pace, gaining traction over time with the interest of a large number o f industries.

This paper explores the current state of the blockchain research space, providing a thorough description of the technology and its fundamental features. A literature study was conducted with the aim of defining a blockchain, where the result shows that two main characteristics are present; A blockchain is a data structure storing information in blocks where each block references the previous block. Further, data is distributed among blockchain network participants.

Furthermore, this paper showcases the versatility of the technology by proposing a blockchain based model for digital voting at general meetings. While the model managed to provide a transparent means of tallying and verifying the outcome of a vote, it should be noted that a compromise had to be made in terms of trusting a third party.

Abstract [sv]

 Intresset för blockkedjeteknologin har ökat dramatiskt under en kort tid. Tekniken, som konceptualiserades i samband med utgåvan av Bitcoin 2008, har vuxit med en jämn takt, och har erhållit momentum i samband med att flera större branscher har visat sitt intresse.

Denna rapport utforskar det rådande tillståndet i forskningsutrymmet, och erbjuder en utförlig beskrivning av tekniken och dess grundläggande egenskaper. En litteraturstudie genomfördes med målet att definiera blockkedjan, där resultatet visade att två huvudsakliga karaktärsdrag fanns; En blockkedja är en datastruktur som lagrar information i block, där varje block refererar till det föregående. Vidare distribueras data till blockkedjenätverkets deltagare.

Dessutom visar denna rapport på teknikens mångsidighet genom att föreslå en blockkedjebaserad modell för digital röstning i bolagsstämmor. Samtidigt som modellen lyckades erbjuda en transparent metod att räkna och verifiera röstresultatet i ett val, så bör det noteras att en kompromiss var tvungen att genomföras gällande förtroendet till en tredje part.

Place, publisher, year, edition, pages
2017. , p. 67
Keyword [en]
Blockchain, Bitcoin, Consensus, Cryptocuyrrency
Keyword [sv]
Blockkedja, Kryptovaluta, Digital valuta
National Category
Computer Sciences
Identifiers
URN: urn:nbn:se:kth:diva-210919OAI: oai:DiVA.org:kth-210919DiVA, id: diva2:1121133
Educational program
Master of Science in Engineering - Industrial Engineering and Management
Supervisors
Examiners
Available from: 2017-10-16 Created: 2017-07-10 Last updated: 2018-01-13Bibliographically approved

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