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The Blockchain Story

Mkt Cap.
Vol. 24H
Open 24h
Low/High 24h
Market Price Open 24H Last Trade Volume 24H
binanceusa 204.36 203.70 0.12 12.29
Exmo 205.29 206.35 1.87 2,705.94
HitBTC 203.60 203.60 0.00 0.00
WEX 305.00 305.00 0.05 0.00
Binance 202.38 203.92 0.62 3,167.91
erisx 205.00 203.90 5.00 5.00
SingularityX 222.67 222.67 2.04 0.00
Bitfinex 202.27 204.00 0.35 22,113.67
idevex 142.84 142.84 0.01 0.00
HitBTC 202.50 202.28 0.00 0.24
cryptonex 201.86 204.44 3.52 2,860.49
WavesDEX 241.98 241.98 2.00 0.00
coss 202.00 202.00 0.05 0.00
Coinbase 202.14 204.04 0.24 64,053.39
RightBTC 116.11 116.11 5.72 0.00
Binance 202.05 204.14 0.50 9,372.73
binancedex 204.97 201.04 2.58 38.18
Ethfinex 181.11 181.11 1.45 0.00
IndependentReserve 205.79 205.79 0.73 0.00
Gatecoin 141.00 141.00 0.00 0.00
Kucoin 202.05 203.04 1.24 45.87
DigiFinex 237.11 237.11 0.05 0.00
crex24 205.80 205.10 0.13 36.36
smartrade 168.82 168.82 0.01 0.00
Poloniex 197.02 197.02 0.27 0.00
OpenLedger 70.00 70.00 0.59 0.00
binanceus 204.36 203.70 0.12 12.29
Cexio 202.74 204.04 2.03 850.31
smarttrade 106.26 106.26 0.05 0.00
LBank 449.99 449.99 0.19 0.00
binanceus 202.36 203.73 1.48 2,661.82
hbus 186.25 186.25 0.04 0.00
Yobit 206.40 208.63 0.05 87.69
Simex 189.71 189.71 11.82 0.00
BTCChina 283.55 283.55 0.20 0.00
Tidex 190.00 190.00 0.01 0.00
thore 207.40 211.00 1,897.00 1,897.00
BitTrex 202.16 203.94 0.93 2,572.14
Abucoins 917.87 917.87 0.00 0.00
itBit 202.50 203.75 1.00 1,846.83
Exenium 284.04 284.04 0.35 0.00
Remitano 466.05 466.05 0.20 0.00
lmax 202.28 203.98 1.13 13,425.23
Bgogo 216.31 216.31 0.01 0.00
Quoine 106.06 106.06 3.30 0.00
Gemini 202.62 204.08 3.44 6,726.06
OKCoin 202.06 203.87 0.50 1,960.61
Incorex 326.02 326.02 0.09 0.00
Nexchange 223.02 318.41 1.35 1.35
Cryptsy 1.85 1.85 1.23 0.00
BitexBook 213.58 221.25 0.01 0.48
Zecoex 119.55 119.55 0.29 0.00
tchapp 207.40 211.00 1,897.00 1,897.00
BitFlip 170.00 170.00 0.25 0.00
bingcoins 182.32 182.32 3.36 0.00
crex24 159.30 159.30 0.00 0.00
Liquid 190.40 190.40 0.02 0.00
StocksExchange 211.93 192.00 1.51 38.99
HuobiPro 204.08 203.42 0.85 42.01
Bitstamp 202.35 204.07 2.00 33,016.86
Bitsane 100.00 100.00 0.06 0.00
CoinHub 202.93 217.00 0.14 0.14
Kraken 202.25 204.04 11.00 18,126.81
Graviex 221.75 233.95 0.00 0.04
blockchaincom 204.44 203.71 0.03 253.08
Bitforex 202.04 204.01 0.29 786,874.37
Bibox 280.99 280.99 0.04 0.00
binanceusa 202.07 203.73 0.15 2,662.96
CCEX 120.00 120.00 0.00 0.00
DSX 203.00 207.72 0.50 0.50
Coinsbit 202.28 204.40 7.65 169,732.53
seedcx 202.30 202.30 1.00 0.00
LiveCoin 141.02 141.02 0.02 0.00
utorg 209.98 209.98 0.25 0.00
cobinhood 261.00 261.00 0.08 0.00
Bitlish 118.60 118.60 0.49 0.00
Coinsbit 202.38 203.92 10.76 41,790.72
coss 142.60 142.60 0.07 0.00
Coinroom 150.14 150.14 1.13 0.00
BCEX 3,545.25 3,545.25 1.77 0.00
Lykke 203.00 204.30 0.05 0.49
primexbt 202.26 204.00 2.17 23,219.35
coinsuper 143.67 143.67 0.02 0.00
Neraex 183.42 183.42 0.00 0.00
Coincap 195.42 195.42 4.55 0.00
xcoex 206.48 206.48 0.23 0.00
bitasset 204.12 206.13 0.30 506,602.07
BTCE 205.50 205.50 0.94 0.00
BTCAlpha 202.08 204.09 0.26 11,447.27
sistemkoin 204.25 201.57 0.35 58,764.23
IDEX 204.81 203.24 0.06 111.99
Liquid 203.12 204.13 0.35 650.47
coinfield 202.10 204.02 2.13 7,841.79
P2PB2B 202.14 204.21 0.11 214,579.27
EXRATES 149.01 149.01 0.04 0.00
BitBay 203.77 203.14 0.07 26.94
coss 184.93 184.93 0.01 0.00
LiveCoin 208.08 209.11 0.03 649.56
Threexbit 117.50 117.50 0.00 0.00
ExtStock 237.12 237.07 0.05 1,339.40
Ore 150.00 150.00 0.01 0.00

The intent of Ethereum is to create an alternative protocol for building decentralized applications, providing a different set of tradeoffs that we believe will be very useful for a large class of decentralized applications, with particular emphasis on situations where rapid development time, security for small and rarely used applications, and the ability of different applications to very efficiently interact, are important. Ethereum does this by building what is essentially the ultimate abstract foundational layer: a blockchain with a built-in Turing-complete programming language, allowing anyone to write smart contracts and decentralized applications where they can create their own arbitrary rules for ownership, transaction formats and state transition functions. A bare-bones version of Namecoin can be written in two lines of code, and other protocols like currencies and reputation systems can be built in under twenty. Smart contracts, cryptographic "boxes" that contain value and only unlock it if certain conditions are met, can also be built on top of the platform, with vastly more power than that offered by Bitcoin scripting because of the added powers of Turing-completeness, value-awareness, blockchain-awareness and state.

In Ethereum, the state is made up of objects called "accounts", with each account having a 20-byte address and state transitions being direct transfers of value and information between accounts. An Ethereum account contains four fields:

  • The nonce, a counter used to make sure each transaction can only be processed once
  • The account's current ether balance
  • The account's contract code, if present
  • The account's storage (empty by default)

"Ether" is the main internal crypto-fuel of Ethereum, and is used to pay transaction fees. In general, there are two types of accounts: externally owned accounts, controlled by private keys, and contract accounts, controlled by their contract code. An externally owned account has no code, and one can send messages from an externally owned account by creating and signing a transaction; in a contract account, every time the contract account receives a message its code activates, allowing it to read and write to internal storage and send other messages or create contracts in turn.

Note that "contracts" in Ethereum should not be seen as something that should be "fulfilled" or "complied with"; rather, they are more like "autonomous agents" that live inside of the Ethereum execution environment, always executing a specific piece of code when "poked" by a message or transaction, and having direct control over their own ether balance and their own key/value store to keep track of persistent variables.

For more details visit https://ethereum.org/

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