A Survey of Ledger Technology-Based Databases

• Main Authors: Dénes László Fekete, Attila Kiss
• Format: Article
• Language: English
• Published: MDPI AG 2021-07-01
• Series: Future Internet
• Subjects: ledger technology; permissioned blockchain; centralised ledger database
• Online Access: https://www.mdpi.com/1999-5903/13/8/197

The spread of crypto-currencies globally has led to blockchain technology receiving greater attention in recent times. This paper focuses more broadly on the uses of ledger databases as a traditional database manager. Ledger databases will be examined within the parameters of two categories. The first of these are Centralized Ledger Databases (CLD)-based Centralised Ledger Technology (CLT), of which LedgerDB will be discussed. The second of these are Permissioned Blockchain Technology-based Decentralised Ledger Technology (DLT) where Hyperledger Fabric, FalconDB, BlockchainDB, ChainifyDB, BigchainDB, and Blockchain Relational Database will be examined. The strengths and weaknesses of the reviewed technologies will be discussed, alongside a comparison of the mentioned technologies.