Frequently Asked Questions

From The Ethereum Wiki
Jump to: navigation, search

What Is An Account, Address, Private Key And Public Key

You can generate a new Ethereum account by executing geth account new if you already have the geth Ethereum node software installed:

Iota:~ user$ geth account new
Your new account is locked with a password. Please give a password. Do not forget this password.
Passphrase: xxxxxxxx
Repeat passphrase: xxxxxxxx
Address: {4e6cf0ed2d8bbf1fbbc9f2a100602ceba4bf1319}

A UTC--{year}-{month}--{account} encrypted account file is created (formatted):

$ more ~/Library/Ethereum/keystore/UTC--2017-03-03T13-24-07.826187674Z--4e6cf0ed2d8bbf1fbbc9f2a100602ceba4bf1319 
{"address":"4e6cf0ed2d8bbf1fbbc9f2a100602ceba4bf1319",
 "crypto":{
   "cipher":"aes-128-ctr",
   "ciphertext":"7a0629096348faa0ae8f71a09c613279d80323a400699658305a43f34279d56d",
   "cipherparams":{
     "iv":"003d6c6e3d77255d70d72088be034d03"
   },
   "kdf":"scrypt",
   "kdfparams":{
     "dklen":32,
     "n":262144,
     "p":1,
     "r":8,
     "salt":"8325cad5dcc8e70163d3cf42b43ad97bc3383db53418b084f6650573f7cabe1e"
   },
   "mac":"a627309776c6bc20b9476869c589c858f6bdf64a58881bff01476829555cf8b7"
 },
 "id":"ba2e1b9a-f140-4940-a1c1-f9dddedc0e1b",
 "version":3
}

Here your account or address is 0x4e6cf0ed2d8bbf1fbbc9f2a100602ceba4bf1319. The contents of the file also includes an encrypted version of your private key.

Why Is My Ethereum Wallet / Mist Taking Forever To Sync?

See Ethereum Wallet Syncing Problems.

What is ETC? What is ETH? Why are there two Ethereums?

Actually, many, many Ethereum based blockchains can exist, you might even start your own. Two defining properties of any such chain include the purpose of the chain (test-net, main-net) and the number of machines which add blocks (mine) to the chain. ETC (Ethereum Classic ) and ETH ( Ethereum ) are the two with the most support, think of them as the "mainstream" Ethereum blockchains. They used to be one and the same, but, due to differing opinions/ideology about what should, and should not, be allowed to transpire on/via Ethereum, on July 20, 2016 at block #1920000, they diverged and have been separate ever since. Both ETC and ETH are tradeable on exchanges. The Ethereum Foundation backs the ETH variety.