Masterarbeit, 2019
100 Seiten, Note: 8,5
1. Introduction
1.1 Motivation
1.2 Problem Definition
1.3 Aims and Objectives
1.4 Research Questions
1.4.1 Sub-Questions
1.4.2 Objectives
1.5 Subject Relevance
1.5.1 The importance of emerging technologies
1.5.2 Relevance in Healthcare System
1.6 Thesis Structure
1.7 Conclusion
2. Blockchain
2.1 Introduction
2.2 Background
2.3 Technology
2.3.1 Blockchain Evolution
2.3.2 The Anatomy of a Block
2.3.3 Blockchain Types
2.3.4 Consensus Algorithms
2.4 Conclusion
3. Literature Review
3.1 Introduction
3.2 Methodology
3.3 Problem Statement
3.4 Conclusion
3.5 Proposed Solutions
3.6 Conclusion
3.7 Contribution to the existing knowledge
4. Design & Implementation
4.1 Introduction
4.2 Theoretical Framework
4.2.1 Research Layers
4.3 Research Design
4.3.1 Quality of the Research
4.3.2 Conducting Interviews
5. Research results
5.1 Introduction
5.2 Step One: “Finding the healthcare system’s problems”
5.3 Step Two: “Blockchain effects on healthcare problems”
5.3.1 List of 15 white papers
5.4 Step Three: “Root causes of blockchain effects”
5.5 Step Four: “Evaluation of root causes”
5.6 Step Five: ”Results”
5.7 Answering the Research Questions
6. Discussion and Conclusion
6.1 Introduction
6.2 Blockchain Solution
6.2.1 Solution Architecture
6.2.2 Solution’s Stakeholders & Hurdles
6.3 Discussion
6.3.1 Future Steps to adopt a Blockchain Solution
6.3.2 Limitations
6.3.3 Future Work
6.4 Summary
6.5 Conclusion
This research aims to perform a multicriteria evaluation of various blockchain technologies to determine which network types and consensus algorithms are most suitable for integration into the healthcare system, specifically addressing issues like interoperability, data ownership, and patient-centered information management.
The Anatomy of a Block
The block is the heart of blockchain where all the transactions are kept. New transactions are validated continuously and added to a new block by miners; This is what orders the blocks in a linear sequence over time and forms a block-chain. A block structure generally consists of two main parts:
• Header:
A block header is an 80-byte long string composed by “4-byte long Bitcoin version number, 32-byte previous block hash, 32-byte long Merkle root, a 4-byte long timestamp of the block, 4-byte long difficulty target for the block (target hash), and 4-byte long nonce used by miners” . Each block is univocally identified by this cryptographic hash, similar to a digital signature, created by hashing the block header (the 80-byte long string) twice with the SHA256 algorithm. This is a unique identifier which means that two blocks will never have the same hash. A second way to distinguish blocks is by referring to their height as shown in Fig 2.3; The ‘height’ indicates the position of the block in the blockchain.
As mentioned before, in each block, a header 80-byte long string contains the previous block hash, the hash of the Merkle Root, the nonce, and the target hash. The previous block hash is used to create the current block’s hash, so, for every block ‘X’ we will need the hash of the block ‘X-1’.
Introduction: Provides the motivation for integrating blockchain into medicine and defines the core problems of health record management, such as information blocking and lack of patient control.
Blockchain: Details the technical foundations of blockchain technology, explaining block anatomy, different network types, and various consensus algorithms like PoW, PoS, D-PoS, and PoA.
Literature Review: Systematically analyzes existing studies and white papers on blockchain applications in healthcare to identify current research gaps and common proposed solutions.
Design & Implementation: Describes the methodological approach of the research, including the use of an exploratory case study design and qualitative data gathered through expert interviews.
Research results: Presents the findings from the literature review and interviews, clustering blockchain benefits and evaluating consensus algorithms to identify the most effective solution for healthcare.
Discussion and Conclusion: Elaborates on the practical implementation of a private, permissioned blockchain solution, discusses stakeholder involvement, identifies implementation hurdles, and provides final conclusions.
Blockchain, Healthcare, Electronic Health Records, Interoperability, Data Ownership, Data Security, Consensus Algorithms, Proof of Authority, Delegated Proof of Stake, Patient-Centred Care, Smart Contracts, Distributed Ledger Technology, Medical Data Management, Scalability, Information Blocking.
The research investigates how blockchain technology can be applied to the healthcare sector to improve data interoperability, security, and patient empowerment while addressing inefficiencies in current health IT systems.
Key themes include the technical evaluation of blockchain network types, the analysis of consensus algorithms for medical data, and the role of smart contracts in managing patient-provider relationships.
The main goal is to identify which specific blockchain technology and consensus mechanism best meet the criteria for a reliable, scalable, and patient-centered healthcare system.
The author uses a multi-method exploratory research design, combining literature review with qualitative data collection through semi-structured interviews with blockchain and healthcare experts.
The main body covers a comprehensive overview of blockchain theory, a systematic review of existing white papers and prototypes, and a multi-criteria analysis of different blockchain architectures and their practical implementation in the healthcare field.
Key terms include Distributed Ledger Technology (DLT), Proof of Authority (PoA), Delegated Proof of Stake (D-PoS), Interoperability, and Electronic Health Records (EHR).
According to the expert interviews, private, permissioned networks offer better control, scalability, and integration readiness, which are essential for enterprise-level medical applications compared to public, permissionless networks.
Smart contracts automate the execution of agreements between patients and providers, acting as data pointers and permission managers, which reduces administrative costs and enhances the transparency of data sharing.
Major hurdles include significant financial investment for infrastructure, the time required for institutional adaptation, the need for cross-industry consortium creation, and social resistance within medical environments.
Der GRIN Verlag hat sich seit 1998 auf die Veröffentlichung akademischer eBooks und Bücher spezialisiert. Der GRIN Verlag steht damit als erstes Unternehmen für User Generated Quality Content. Die Verlagsseiten GRIN.com, Hausarbeiten.de und Diplomarbeiten24 bieten für Hochschullehrer, Absolventen und Studenten die ideale Plattform, wissenschaftliche Texte wie Hausarbeiten, Referate, Bachelorarbeiten, Masterarbeiten, Diplomarbeiten, Dissertationen und wissenschaftliche Aufsätze einem breiten Publikum zu präsentieren.
Kostenfreie Veröffentlichung: Hausarbeit, Bachelorarbeit, Diplomarbeit, Dissertation, Masterarbeit, Interpretation oder Referat jetzt veröffentlichen!

