Quote from: lizardbtc on January 09, 2018, 03:59:31 PM

Quote from: 787875 on January 09, 2018, 02:25:42 PM

I have a few questions about Ethereum and tokens.

1. Do i need to save the private key and json file if i use MEW wallet with Ledger nano s?

2. Tokens that run on Ethereum blockchain , how does that work?

2a. If i send for example Modum, does Modum use the same blockchain as Ethereum or some kind of sidechain?

3. What is really ERC20 tokens?

4. Is gas limit the same as transcation fee is for Bitcoin?

Ether is the main token that exists in ethereum blockchain, it was built mainly to be the gass on the network. Ethereum was built to enable smart contracts - this we can see being developed really well by many devs right now, and of course for dApps aka decentralzied applications. In order for tokens, smart contracts and dApps to happen on ethereum network you need Ether the main token on ethereum, its like paying bitcoin fees with bitcoin, just this gass is a fee for everything you do with blockchain there in some way.

ERC20 tokens are made as contracts of some sort and relativly easier to create than to fork original bitcoin code and create an altcoin. So in short these ERC20 tokens are simply contracts in ethereum network that require gass or ether to transact.

Quote from: khungcuaso11 on January 09, 2018, 03:58:56 PM

I read the topic is still not clear at item#2, someone please explain to me, finally:
- Does ethereum on blockchain.info get a token, is it different from myetherwallet?
Thanks!

blockchain.info is just a wallet provider nothing else. From my knowledge they don't offer you the option to send tokens but you can rreceive it to your blockchain.info wallet just you won't see them there, you will need https://etherscan.io/ to see your tokens. But as blockchain info give you an option to export your private keys which means that you can stll use your address to send out tokens but for this you will need myetherwallet for instance or some other wallet provider or install full node.

Hi Lizardbtc,
Thank you very much for sharing your.
Good luck!