Blockchain Online Radio:

Blockchain Radio is a Canadian live online radio station. It is broadcasting 24/7 News, Analysis & Blockchain Talk. A blockchain is a growing list of records known as blocks that are linked together using cryptography.

Each block contains a cryptographic hash of the previous block, a timestamp, and transaction data (usually presented as a Merkel tree).

The timestamp proves that transaction data was present when the block was published for access to the hash.The blocks create a chain containing the hash of the previous block making each additional block stronger than before.

Therefore, blockchains are resistant to modifying their data because once recorded, the data of any block cannot be retroactively changed without changing all subsequent blocks.

Blockchains are typically managed by a peer-to-peer network for use as a publicly distributed register, where nodes collectively adhere to a protocol to communicate and validate new blocks.

Although blockchain records are not immutable as fork is possible, blockchains can be considered secure by design and can be cited as an example of a distributed computing system with high Byzantine fault tolerance.

Blockchain was invented by one person (or a group of people) using the name Satoshi Nakamoto in 2008 to act as a public transaction agent for cryptocurrency Bitcoin. Satoshi Nakamoto’s identity is still unknown.

The invention of the blockchain for bitcoin became the first digital currency to solve the problem of double-spending without the need for a trusted authority or central server.

Private blockchains have been proposed for commercial use, but Computer World has called for the marketing of such private blockchains without “Snake Oil” as an appropriate security model.

Others, however, have argued that approved blockchains, if carefully designed, could be more decentralized and therefore more secure in practice without permission.

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