[ BitCoin ]
Bitcoin is a cryptocurrency and worldwide payment system.It is commonly referred to with terms like digital currency, digital cash, virtual currency, electronic currency, or cryptocurrency. It is the first decentralized digital currency which the system works without a central repository or single administrator.A transaction is a transfer of value between Bitcoin wallets that gets included in the block chain.Bitcoin wallets keep a secret piece of data called a private key or seed, which is used to sign transactions, providing a mathematical proof that they have come from the owner of the wallet.
Below live data from Gemini Exchange for information only:-

21-Feb-2020 23:08:54 - Page will reload itself every 25 seconds!

Symbol   Bid   Ask   Last Price   Volume   Volume      
BTC:USD9681.169686.429681.16BTC : 1,175.80646  USD : 11,272,497.83775 
ETH:USD262.46262.65262.75ETH : 16,729.53129  USD : 4,296,328.28953 
BCH:USD374.27375.25376.38BCH : 901.23642  USD : 332,815.56349 
LTC:USD73.0773.1273.32LTC : 16,312.64524  USD : 1,134,235.64705 
ZEC:USD61.9362.0362.19ZEC : 4,258.44348  USD : 256,974.15648