For the third time this week, the White House prohibited news organizations from airing the briefing, which has traditionally been televised, and requested that audio recordings be withheld from broadcast until the question-and-answer session had concluded.
A blockchain – originally block chain – is a distributed database that is used to maintain a continuously growing list of records, called blocks. Each block contains a timestamp and a link to a previous block. A blockchain is typically managed by a peer-to-peer network collectively adhering to a protocol for validating new blocks. By design, blockchains are inherently resistant to modification of the data. Once recorded, the data in any given block cannot be altered retroactively without the alteration of all subsequent blocks and the collusion of the network. Functionally, a blockchain can serve as "an open, distributed ledger that can record transactions between two parties efficiently and in a verifiable and permanent way. The ledger itself can also be programmed to trigger transactions automatically.
Ledger journal has just published an exciting newarticle, written by Nicola Dimitri -- a professor of economics and game theorist from the University of Siena in Italy. In this paper, Dimitri shows how the structure of Bitcoin mining may naturally prevent the formation of a monopoly. Read the full article to learn more.