Preprint Article Version 1 This version is not peer-reviewed

Challenges and Emerging Solutions for Public Blockchains

Version 1 : Received: 5 October 2019 / Approved: 7 October 2019 / Online: 7 October 2019 (12:24:44 CEST)

How to cite: Holotescu, V.; Vasiu, R. Challenges and Emerging Solutions for Public Blockchains. Preprints 2019, 2019100071 (doi: 10.20944/preprints201910.0071.v1). Holotescu, V.; Vasiu, R. Challenges and Emerging Solutions for Public Blockchains. Preprints 2019, 2019100071 (doi: 10.20944/preprints201910.0071.v1).

Abstract

With the interest and attention that the Blockchain and the Distributed Ledger Technologies (DLT) have recently demanded, the technology is advancing at a very high rate. With investors and applications in a wide variety of fields, a lot of funding and efforts are being driven into bringing the technology to everyday use. The community and companies are coming up with new ways to collaborate, which makes the blockchain ecosystem evolve at full tilt. Consequently, this paper’s aim is to review the academic and grey literature and to provide readers with information about the evolution, benefits and challenges of the Public Distributed Ledger Technologies and to discuss the latest solutions, which are being developed for bringing decentralization closer to the mainstream. The paper reviews the Directed Acyclic Graph (DAG) structured distributed ledgers with focus on the Hedera Hashgraph, a novelty DLT bringing a unique consensus algorithm with new use-cases enabled by new cryptoeconomic mechanisms as well as vital services, such as Solidity smart contracts and distributed file storage. Lastly, we are going to explore second-layer network protocols, a major topic for solving the scalability issues, empower Bitcoin and DLTs and also disrupt cryptocurrency exchanges focusing on the Lightning Network.

Subject Areas

Blockchain; Distributed Ledger Technology; Blockchain Trilemma; Scalability; Interoperability

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