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You got a lot of misconceptions about how blockchain works. First of all every block is mined at fixed time(for BTC its 10 minutes). If recent block is mined f
by rozenbor 9y ago
You got a lot of misconceptions about how blockchain works.
First of all every block is mined at fixed time(for BTC its 10 minutes). If recent block is mined faster or slower then 10 minutes difficulty will change and block time will always be closer and closer to 10 minutes. Miners get their payment in bitcoins for mining blocks and only first one network who is lucky to mine it gets that block reward. In "Google case" google may get all of blocks and using more and more servers won't get any more money for google.
Second: Premium(profit) of mining blocks consists of two parts: block reward + transaction fee. First is hard-coded into algorithms and it started from 50 BTC per block and goes down to 1 and after to 0 by time. No matter how difficult block was reward is hardcoded by number of block.
Third: Blockchain is very slow network it allows only 1 block per 10 minutes and block size is around 1 MB. This megabyte is mostly consists of transactions and only 3600 transactions can get into one block(roughly its 6 transactions per second but really its 3-4). Because of it not all transitions get into block and block miner can choose which one to add, so block miner chooses one's that have higher transaction fees. Transaction is an electronic message that consists of: sender address, target address, sum of bitcoins, transaction fee and signature of operation. When transaction is added into block its verified and miner get transaction founds sender included in transaction and guaranteed block reward(1 btc for entire block). So: No matter how much servers are mining - transaction fee is choosen by sender to be in some block(to be in first block today you need to pay arround $25 in btc).
Third: Transaction's signature is most important part for security. By choosen algorithm it will take millions of years to break it. So even if someone is successful on 51% attack he won't get ANY founds from bitcoin wallets.
51% attack also won't google change the rules of system so doing it is just pointless.
Things are a bit more complicated than I described(its already hard-readable) and etherium like networks are deferent( BTC is proof-of-stake ETC is proof-of-work). Shortly saying putting more servers on etherium will make etherium operations even cheaper.