I just saw this somewhere on the internet. Are there any fake coins existing? How do you avoid buying fake coins?
how to avoid buying fake coins is that you buy coins in a well-known or convincing exchange (at least already on the coinmarketcap list), or if you buy coins in decentralized trading (such as EtherDelta or ForkDelta), you can enter or see the smart contract of the coin to ensure that the coin is genuine and not fake.
for example, buying coins in decentralized trading :
smart contract from EOS : 0x86fa049857e0209aa7d9e616f7eb3b3b78ecfdb0
you can check it in
etherscan.iothen input the smart contract like this
https://etherdelta.com/#0x86fa049857e0209aa7d9e616f7eb3b3b78ecfdb0-ETH