Questions tagged [crowdsale]

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votes
2answers
301 views

Resell or Refund the tokens after the ICO ends

I have 2 questions about ICO: 1.What are the available methods to resell the tokens after the ICO ends? 2.Can the user return the tokens after the ICO ends and get a refund? For example they buy X ...
1
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1answer
434 views

Could not withdraw tokens after crowd sale

I'm trying to implement smart contract for crowd sale and faced following problem. Firstly, I created test token here on Ethereum- using examples from OpenZeppelin framework and test CrowdSale ...
0
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1answer
346 views

Is that a need to add every investors to multisig wallet?

I read an article here, it mentioned that Another convention which has by now become a de facto requirement is collecting all contribution in a multi-signature escrow wallet, with all the names of ...
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2answers
1k views

How to transfer ETH from contract to external address after crowsale?

I am trying to learn creating smart contracts. For practice, I created token and crowdsale contracts by following the examples on ethereum.org and deployed it. Token distribution is working as ...
2
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6answers
2k views

How can I create a Dashboard for my Ethereum ICO investors to track their Tokens

We're launching an Initial Coin Offering (ICO) and I would like to create a user dashboard for investors to track their tokens and the progress of the crowdsale. How can I do this? I'm a web ...
0
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2answers
462 views

Is this a satifactory crowdsale contract? [closed]

Can one of you awesome people look over this contract for any issues? Its meant to be a simple crowdsale contract that has a deadline, a goal, and a minimum. Participants should have the option of ...
-2
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1answer
142 views

Is ICO a crowdsale or decentralized organization? [closed]

I want to create an ICO for a project in order to raise fund and found that there seems 2 options for me. One is to create a crowdsale and another is to create a Decentralized Organization. I am ...
3
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2answers
832 views

Question about Crowdsale contract token cost

I have a quick question. What line of code do i need to add or remove here function Crowdsale( address ifSuccessfulSendTo, uint fundingGoalInEthers, uint durationInMinutes, ...
2
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0answers
779 views

How to access Token functions in remix.ethereum.org?

I'm looking at Crowdsale.sol from OpenZeppelin / zeppelin-solidity. Here's a snippet: import '../token/MintableToken.sol'; contract Crowdsale { MintableToken public token; After I create the ...
0
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1answer
259 views

BalanceOf from BasicToken & totalSupply from ERC20Basic not working from Crowdsale.sol

I'm using Crowdsale.sol from OpenZeppelin / zeppelin-solidity. Here's a snippet: import '../token/MintableToken.sol'; import '../math/SafeMath.sol'; /** * @title Crowdsale * @dev Crowdsale is a ...
2
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1answer
1k views

Crowdsale contract and safe withdrawals

According to crowdsale contract at https://www.ethereum.org/crowdsale tokens are transferred to a user account when "function () payable" is called by using external function tokenReward.transfer(msg....
1
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0answers
368 views

Capping Token Sale

How does one have a capped crowdsale? This is my code so far contract CrowdsaleToken is StandardToken{ string public constant name = "TestCoin"; string public constant symbol = "TCC"; uint public ...
2
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0answers
1k views

Crowdsale smart contract

We need a template of a fully workable crowdsale contract It should be with the time frame and we should specify rate and the wallet where all raised funds will go
11
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1answer
2k views

Is it possible to create ICO crowdsale seamlessly accepting multiple assets?

Most of the ICO crowdsales accept ETH only. Some accept BTC. Very few accept other assets. I was thinking about creating crowdsale that would accept as many assets as possible. While creating, ...
0
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2answers
367 views

I am trying to develop an ICO using Etheroll's as a template. Why won't it compile?

Please see here, line 13 is not compiling in Mist. Can anyone help me understand what is going wrong? You can see that it worked, obviously, for Etheroll when they performed their ICO. https://...
9
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0answers
1k views

Pre ico and ico crowdsale contracts [closed]

Can you please recommend the best way to organize pre-ICO and ICO using Etherium smart contracts. I have found two options: 1) To make 2 different contracts and after ICO merge them (pre-ICO with ...
18
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1answer
44k views

what is the difference between hard cap and soft cap in ethereum ICO

Please someone provide me details about the hard cap and soft cap in ICO. I have to build an ICO with an hard cap. How do I implement it in a smart contract using solidity? Provide me concept behind ...
6
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3answers
1k views

how to setup multicurrency ICO / Crowdsale

I'm having difficulty finding information on how to setup a contract that accepts multi-currency like bitcoin, wave, ripple, etc. And also looking for a solution to distribute my tokens to these ...

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