What is the most expensive part of mining?

What is the most expensive part of mining?

From my understanding, miner's take a bunch of transactions and use a nonce, previous block and the transaction data to try and find a hash that beats the difficulty. As soon as this happens, will their block be added, and then 99 blocks later the BTC will be awarded.

Is the solving aspect of the hash the most expensive part, for the computer? Or is gathering the transactions and confirming them more expensive?

How does one confirm the transactions? Do they have to traverse the entire blockchain, or only find the most recent ledger which shows both user's balances to confirm?

http://ift.tt/2isRblF

Comments

Post a Comment

Popular posts from this blog

sendrawtransaction and txn-mempool-conflict

sendrawtransaction and txn-mempool-conflict When i sendrawtransaction to bitcoind, i get error (exceptions) 18: txn-mempool-conflict (use Bitcoin JSON-RPC denpamusic/php-bitcoinrpc ) But the transaction is sent to the network and is subsequently confirmed. Example one decoded transaction : https://jsfiddle.net/rn58a4j6/ then i send this transaction: 94ec12fc463230b4285a29b047608627c05572a4c6eabe6688a201ce49ae72f7 https://ift.tt/2MY2KP0
Read more

couldn't connect to server: EOF reached (code 1)

couldn't connect to server: EOF reached (code 1) I'm running a full node on my raspberry pi3. I try to do a simple command such as bitcoin-cli getblockchaininfo but I always get this error: error: couldn't connect to server: EOF reached (code 1) (make sure server is running and you are connecting to the correct RPC port) My bitcoin.conf file looks like this: Bitcoind options server=1 daemon=1 reindex-chainstate=1 reindex=1 txindex=1 disablewallet=1 listenonion=0 Connection settings rpcuser= * rpcpassword=* rpcport=8332 rpcallowip=127.0.0.1 rpcthreads=10 I also tried to get a command with "bitcoin-cli -rpcuser: * - rpcpassword=* -rpcportt8332 getblockchaininfo". But this also didn't work. Does someone has some advice or experience with this error? https://ift.tt/2D82TLW
Read more