Distributed Ledger Technologies for Inclusive Postal Financial Services: Blockchain and More

A Comprehensive Reference Model for Blockchain-based Distributed Ledger Technology

Blockchain is a distributed, transactional database that is shared across all the nodes participating in the network. This is the main technical innovation of Bitcoin and it acts as a public ledger for the transactions. However, this technology lacks standardisation and uniform understanding. This is due to a few studies, that would provide a comprehensive model of the blockchain and the distri...

A Reference Model for Blockchain-Based Distributed Ledger Technology

Blockchain is a distributed, transactional database that is shared across all the nodes participating in the network. This is the main technical innovation of Bitcoin and it acts as a public ledger for the transactions. Every node in the system has a full copy of the current chain, which contains every transaction ever executed. Every block contains a hash of the previous block, linking these t...

Blockchain Technology and the Financial Services Market

Survey on Blockchain Technologies and Related Services

1 Background and Objective of the Survey Compared with conventional centralized systems, blockchain technologies used for transactions of value records, such as bitcoins, structurally have the characteristics that (i) enable the creation of a system that substantially ensures no downtime (ii) make falsification extremely hard, and (iii) realize inexpensive system. Blockchain technologies are ex...

Formalizing and Implementing Distributed Ledger Objects

Despite the hype about blockchains and distributed ledgers, no formal abstraction of these objects has been proposed. To face this issue, in this paper we provide a proper formulation of a distributed ledger object. In brief, we define a ledger object as a sequence of records, and we provide the operations and the properties that such an object should support. Implementation of a ledger object ...