Cross-blockchain protocol for public registries

Abstract

Purpose The purpose of this paper is to present a concept of the protocol for public registries based on blockchain. New database protocol aims to use the benefits of blockchain technologies and ensure their interoperability. Design/methodology/approach This paper is framed with design science research (DSR). The primary method is exaptation, i.e. adoption of solutions from other fields. The research is looking into existing technologies which are applied here as elements of the protocol: Name-Value Storage (NVS), Berkley DB, RAID protocol, among others. The choice of NVS as a reference technology for creating a database over blockchain is based on the analysis and comparison with two other similar technologies Bigchain and Amazon QLDB. Findings The proposed mechanism allows creating a standard database over a bundle of distributed ledgers. It ensures a blockchain agnostic approach and uses the benefits of various blockchain technologies in one ecosystem. In this scheme, blockchains play the role of journal storages (immutable log), whereas the overlaid database is the indexed storage. The distinctive feature of such a system is that in blockchain, users can perform peer-to-peer transactions directly in the ledger using blockchain native mechanism of user access management with public-key cryptography (blockchain does not require to administrate its database). Originality/value This paper presents a new method of creating a public peer-to-peer database across a bundle of distributed ledgers.

Blockchain in real estate: Recent developments and empirical applications

“…The land administration category contains blockchain-based applications that specify a link to the land and title registration systems. The proposed blockchain applications in the land administration category mainly consist of technical concepts (Spielman, 2020;Soner et al, 2021;Ali et al, 2020;Thakur et al, 2020;Konashevych, 2020a;Mendi et al, 2020). The transaction category refers to commercial and residential real estate sales where the participants may be professional or retail investors or consumers.…”

Towards smart contract distributed directory based on the uniform description language

“…In fact, it is used to store the list of records, such as user identities, assets, transactions, or other types of data, which are verified and recorded in a tamper-proof and immutable manner using cryptography and consensus algorithms. Storing and managing this data is maintained automatically based on the blockchain's internal mechanisms (5). To verify this data, the user needs access to that closed database or trusts the entity that stores it (5).…”

Cross-Blockchain Technology: Integration Framework and Security Assumptions

“…Cross-blockchain protocols are an active area of research that tries to provide certain guarantees when moving value/data between blockchains networks [41]. Several protocols have been proposed over the past few years, such as hash time locks, cryptographic proofs -rollups [42], Proof-of-Burn [43]- [45] and signature-based protocols [46].…”