Blockchain is a distributed digital ledger of cryptographically signed transactions grouped into a chain of blocks. The emergence of Blockchain has changed how information can be stored and processed securely. The research interest in Blockchain has significantly evolved as the technology has found ...
Fig. 2 gives an overview of blockchain structure. Each block contains the block header and several transaction data (about 2000 for Bitcoin). The block header comprises the hash of the previous block, timespan, Merkle root of transactions, nonce, and other elements depending on the network. ...
The blockchain technology is currently penetrating different areas of the modern Information and Communications Technology community. Most of the devices involved in blockchain-related processes are specially designed targeting only the mining aspect, i.e., solving the computational puzzle task. At the ...
This introductory chapter provides an overview of the main legal and policy implications of blockchain technology. It proceeds in four steps. First, the chapterdoi:10.1093/oso/9780198842187.003.0001Philipp HackerIoannis LianosGeorgios Dimitropoulos
2.2.6Blockchain technology Blockchaintechnology is a pattern for implementing and managing transactions through transparent trusted rules for constructing unforgeable, non-tamperable and traceableblockchaindata structures in a peer-to-peer (P2P) network environment. At present, blockchain technology is ...
Overview of Blockchain Technology Concepts C. Komalavalli, ... Chetna Laroiya, in Handbook of Research on Blockchain Technology, 2020 14.4.5 Cryptography in Blockchain Cryptography is method for protecting information through the use of encrypting and decrypting the data. Hashing is mainly used in...
2.2 Blockchain technology: Asymmetric key cryptography and hashing Since blockchain deals with the peer-to-peer mechanism, the query could appear that how blocks are communicating directly without any fear of losing their integrity of information and that’s so in the presence of millions of other...
Blockchain technology (BT) is springing up, covering numerous fields including financial services, reputation systems, IoT, and so on. The chapter also explores types of blockchain that may be permissioned, permission less, and hybrid to reduce security vulnerabilities. The blockchain technology can...
1.7 Blockchain technology in the healthcare sector In Ref. [1], the authors propose a peer-to-peer electronic cash system using bitcoin cryptocurrency technology (blockchain). Ref. [24] coined the concept of blockchain and investigates the suitability of blockchain-based solutions for governance...
Decentralization, security, and lastly, scalability have been identified as key essential features of blockchain technology, but achievement of only two out of these three crucial features in modern day blockchain applications is seen. Scalability is clearly neglected in today's first-generation block...