Blockchain : Microsoft’s New Ethereum Blockchain Product Gets Rid of Mining
Announced on Tuesday, [Ethereum Proof-of-Authority on Azure](https://azuremarketplace.microsoft.com/en-us/marketplace/apps/microsoft-azure-blockchain.azure-blockchain-ethereum?tab=Overview) allows enterprises to build applications on an Ethereum blockchain that is not secured by a [Proof-of-Work](http://ccn.com/tag/proof-of-work) (PoW) consensus algorithm and consequently does not require [mining](http://ccn.com/altcoin-mining) — features that are better suited for networks in which participants do not trust one another.
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What is the Blockchain?
A block chain is a transaction database shared by all nodes participating in a system based on the Bitcoin protocol. A full copy of a currency’s block chain contains every transaction ever executed in the currency. With this information, one can find out how much value belonged to each address at any point in history.
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