legit bitcoin mining review sites 2019

Make a super monthly bonus of 3 BTC

Mining is the process of adding transaction records to Bitcoin's public ledger of past transactions (and a "mining rig" is a colloquial metaphor for a single computer system that performs the necessary computations for "mining". This ledger of past transactions is called the block chain as it is a chain of blocks. The blockchain serves to confirm transactions to the rest of the network as having taken place. Bitcoin nodes use the blockchain to distinguish legitimate Bitcoin transactions from attempts to re-spend coins that have already been spent elsewhere.

Mining is intentionally designed to be resource-intensive and difficult so that the number of blocks found each day by miners remains steady. Individual blocks must contain a proof of work to be considered valid. This proof of work is verified by other Bitcoin nodes each time they receive a block. Bitcoin uses the hashcash proof-of-work function.

The primary purpose of mining is to set the history of transactions in a way that is computationally impractical to modify by any one entity. By downloading and verifying the blockchain, bitcoin nodes are able to reach consensus about the ordering of events in bitcoin.

Mining is also the mechanism used to introduce Bitcoins into the system: Miners are paid any transaction fees as well as a "subsidy" of newly created coins. This both serves the purpose of disseminating new coins in a decentralized manner as well as motivating people to provide security for the system.

Bitcoin mining is so called because it resembles the mining of other commodities: it requires exertion and it slowly makes new units available to anybody who wishes to take part. An important difference is that the supplydoes not depend on the amount of mining. In general changing total miner hashpower does not change how many bitcoins are created over the long term. wiki
 

 IS LEGIT

nicehash.com One of the great sites for mining 

Advantages: buy and sell hashing power,bitcoin mining

                                                                               

 
 

 IS LEGIT

With this tool bitcoin speed is 8x
We recommend refferal these three decisions in this site is the 10 level 


                                                                               

 
 

 IS LEGIT

minergate.com mining all cryptocurrency

Ways to make money: mining pools,mining services

                                                                               

 
 

 IS LEGIT

One of the top sites bitcoin mining

With a membership of 1 Million bitcoin Award, you have 5 level referral

                                                                               

 
 

 IS LEGIT

Kryptex is a real mining site of cryptomony.
The payout is at 0.0002 BTC you will receive within minutes.
There is also a 0.0001 BTC fee for bitcoin payments