Block chain, the technology behind crypto currencies in which data once stored cannot be deleted. The block chain is a virtual, public ledger that records everything in a secure and transparent manner. Unlike banks that facilitate transactions with traditional currencies, the blockchain allows the free transfer of cryptocurreny through a decentralized environment. All the data is then held in an interlinked network of computers, owned and run by none other than the users themselves.
Data structure build using blockchain allows users to make and verify transactions without a third-party involvement. This strongly reduces the risk of a backdoor transaction and unauthorized intervention. The more widespread the environments, the more difficult it is to tinker with data.
The distributed ledger structure gives the control of all their information and transactions to the users. Blockchain data is complete, accurate and consistent with all the members. Changes to the public blockchain are accessible to all the members, thus creating a transparent system.
Blockchain transactions can reduce transaction times to minutes and are processed 24/7. An instantaneous settlement would transform an industry such as transportation and energy, potentially saving billions from increased back-office efficiency and automation.