Blockchain : IOST giveaway upto 750k iost tokens
[IOST: 400X ETH & 100X EOS] #IOST, backed by Sequoia Cap China & 30+ institutions investors, is already 400X faster than Ethereum and 100X more decentralized than EOS. Join the #IOST Community Hub & claim up to 100,000+ IOST ! Worth 100$ https://hub.iost.io/register?inviteCode=SyyjFdmN7
Note : answer of both questions
Is = all of the above
Coin is traded on binance, huobi, etc.
What is the Blockchain?
A block chain is a transaction database shared by all nodes participating in a system based on the Bitcoin protocol. A full copy of a currency’s block chain contains every transaction ever executed in the currency. With this information, one can find out how much value belonged to each address at any point in history.
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