Questions tagged [altcoin]

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Clarification about Dogethereum

Can someone explain me the Dogethereum project? I mean, is it a token managed by a smart contract (through a bridge) or is it a full independent blockchain whose code is based on that of Ethereum, ...
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0answers
29 views

Usdt Omni questions [closed]

1 what is the transaction fee to sending usdt Omni version? 2 can I use Omni api to check the usdt I received ?any php script useful? 3 can I also use the Omni api to send usdt automatically? Any ...
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2answers
49 views

Can I close an ethereum smart contract?

If I create a smart contract and coin, can I for example some day close the contract and these coins are useless or can not be used for example? Is it possible or not?
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2answers
18 views

created a token and the supply is lower than i need

I just want to create a supply of 70 billions but i have 70 millions. Code pragma solidity ^0.4.4; contract Token { /// @return total amount of tokens function totalSupply() constant ...
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1answer
332 views

Trying to send 295 NGC from my ether wallet to hitbit and getting the following error message

Insufficient funds. The account you tried to send transaction from does not have enough funds. Required 467680000000000 and got: 0.
0
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1answer
45 views

Other cryptorurrency use in smart contracts

Is it possible to use other cryptocurrency than Ether (for example, Bitcoin, Litecoin etc.) within Ethereum smart contracts? I can imagine this will not really be compatible except for other currency ...
4
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2answers
253 views

Notifying a smart contract of payments on other blockchains

Suppose I'm running an ICO and accepting other coins, in addition to ether. Whenever somebody sends me her bitcoins, I need to update her token balance. Question: how do I make my smart contract "...
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0answers
49 views

altcoin investment management in ethereum ICO

I have observed that these days ethereum ICOs are also allowing payment using some cryptocurrencies (bitcoin, litecoin etc.) except ether. They ask to signup from user, create a unique altcoin address ...
1
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1answer
464 views

How can I get circulating supply for crypto currency?

I am looking for an API, where I can get the circulating supply for all crypto currencies? For now, I found this: https://altcoinmarketcap.com/api. The problem is that if the site go down , I can not ...
12
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2answers
4k views

Do users of ERC20 coins need to hold Ether?

Suppose there exists Fancycoin, an ERC20 altcoin which has some functionality implemented by the EVM. It does some nontrivial things that take up gas. According to my understanding, I can receive ...
3
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1answer
365 views

What's the relationship between Ethereum and Filecoin?

I read on a few websites that Filecoin will "run" on Ethereum. Is that still the plan for Filecoin? If so, what does this mean in practice?
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2answers
522 views

Are there any cryptocurrencies built by modifying ethereum code, like there are many alt-coins based on bitcoin code?

Is it legal to build a separate blockchain with our own coins/tokens and miner-code to mine those coins/tokens (not a private one) based on ethereum open-source code ?
5
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1answer
5k views

Can 'your own crypto-currency' (created in the Ethereum Ecosystem) be mined as a standalone crypto-currency?

As I understand it (please correct me if I'm wrong) a typical Litecoin derived alt coin has its own blockchain and can be mined entirely separately from any other crypto-currency. Some alt coin miners ...
3
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1answer
517 views

How to enable mining of my crypto currency?

I have made my own cryptocurrency. And I am thinking about rewarding the miner who mines the transaction related to my contract. Thus, I am thinking about adding balanceOf[block.coinbase] += 1; at the ...
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0answers
32 views

Ethereum vs rootstock [duplicate]

How does ethereum compare to rootstock? Except obviously that rootstock uses bitcoins exclusively.
2
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1answer
190 views

Is ethereum based on bitcoin?

There are many discussions about so called altcoins. Is Ethereum an alternative coin? Is Ethereum even a coin? (This is a canonical question to gether answers and resources on that subject.) Is ...
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2answers
443 views

Is there any Bitcoin-backed token?

Is it possible to trade BTC and other altcoins on Ethereum's blockchain? If so, how?
5
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2answers
418 views

Which competing technologies are similar to Ethereum?

Ethereum is widely known for its smart contract system, but which other competing technologies are also out there that does something similar. Just like in the early days of Bitcoin, many clone coins ...