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13

There is no time-limit to claim (i.e. import) your ether. Your ether can remain in your presale wallet indefinitely, and do not need to be claimed/imported until you are ready to use them. Ethereum is, indeed, switching to a Proof of Stake consensus algorithm in the future, but here again there is no need to move your presale ether at that point. As with ...


12

Using Mist (Update 27th of February 2016) It is now possible to import your pre-sale wallet in the official Mist wallet, version 0.4.0 and up. No more command line interface required. To import your presale via Mist / Ethereum Wallet, start it up, let it sync (takes a day or so), go to "Accounts" -> "Import Pre-Sale Accounts". That's it. In some versions ~...


10

It depends on what you want to do with the ethers held in your presale wallet account. Keys Just to clarify what keys you have, here is a example of a set of keys: Unencrypted private key: 79d4c2a3bb457add08a4eb3a1c222235899a93d77a5a2e67704994212861e222 Private key encrypted with the password testtest: U2FsdGVkX1+...


7

1 Bitcoin got you 2000 ETH and at the time 1 Bitcoin was somewhere around $500 - $600, but you can check that bit.


6

The easy way Kraken has a super easy tool for importing presale wallets, and it's super convenient if you want to be able to trade the ether. There's another similar tool here The safe way If you don't want to give an exchange access to your funds, you should download the command line client, geth, and use the command geth wallet import /path/to/my/...


6

8893 I got this number using the genesis block that I created myself using the instructions in this blog post. I generated the JSON file, imported it into a NodeJS REPL and queried the length of the alloc property. This list includes all presale addresses and their balances at the time of the network launch.


5

The presale ran from 22nd of July 2014 to 2nd September 2014. This was before the general public launch of the network. For the first couple of weeks, 2000 ETH cost 1 BTC. Thereafter, your 1 BTC gradually got you fewer ETH. See: What was the approximate cost of 1 ETH during pre-launch (Aug 2014) The "presale wallet" was the keystore file loaded with the ...


5

The Ethereum presale took place from Tuesday, 22 July 2014 to Tuesday, 2 September 2014 (42 days). 22 July to 5 August 2014: 2000 ETH = 1 BTC = 572-632 USD 6 August to 2 September 2014: 1999-1337 ETH = 1 BTC = 592-471 USD USD prices are the range in the given period of 24 averages on multiple exchanges, Source: Quandl For the linear decrease of ...


4

The number of hashes depends on the number of miners that partecipate in a lottery to win the Ether fee. Therefore you can not have a number NoHashes/Eth. The hashing is a way do have a distributed random generator. It is a riddle to produce a hash of the last block with a certain amount of zeros as prefix. This is essential for Proof of work systems. With ...


4

Are you aware of the bug in the Mist wallet? It is exactly what you explained or did I misunderstand? If you are confident you are entering the correct pass then its likely the bug. users reported a bug, and devs confirmed that in some cases entering the correct password will fail stating wrong PW when its actually correct. You could use the Kraken json ...


4

Just found the answer in the comments of another post: It will be an email from confirmation@sale.ethereum.org


4

Summary The reason why you got the error message is because the crowd sale has ended as the funds raised reached the maximum cap of 465,313 ethers within minutes after the crowd sale commenced. As @eth commented below, any transactions sent to this contract after the crowd sale has ended will end up with an error, and your funds don't leave your account. ...


4

Security reasons. As you drop a file, not the privKey, there would be a file transfer via rpc. Even though it is a very low risk, there is a risk. Furthermore, the import function of geth (e.g. geth account import ./key.prv) works with private Keys, but not with json. mist wants you to drag and drop json files. Edit: More precise: The "pure" geth has no ...


3

Let's suppose we have M the maximum amount of tokens to sell, I the initial price of each token and F the final price of each token. Let's call f the function that gives the price of each token, we know that f(0) = I and f(M) = F. If you want a linear price then f(x) = I + (F - I) * x / M. The problem is to determine how many token we will get when we pay ...


3

The Ether will still be in your Ether address. Yes, you will have both ETC and ETH. If there are any other forks that use the genesis block from the Ethereum presale, you will have all those Ether too. You may want to "split" your ETC and ETH to different addresses to avoid replay attacks: this leads to a number of options for doing so.


3

No. Your bkp is not the SHA3 of your password. It's really quite simple. In the beginning, god said genwallet and... genwallet says: genwallet(opts['seed'],pw,email) You say "here's my email and pw" seed says "give me super random number": seed = random_key().decode('hex') # uses pybitcointools' 3-source random generator so now you need to get ...


3

There is no time limit as the pre-sale wallet essentially is storing your private key. However, you might be better off converting to the current keystore format (the one used by geth) in order to avoid any possible issue of finding a tool in the future which handles the pre-sale format. It is already getting problematic to use it (see other questions on ...


3

Unfortunately, it appears you didn't follow instructions by keeping the json wallet file. If you only have the password, your ether is lost, as clearly stated in ether sale documentation, instructions, and FAQ: https://forum.ethereum.org/discussion/196/the-ether-sale-faq KEEP YOUR WALLET AND PASSWORD safe. Without your wallet AND password, your ether will ...


3

I like using this tool - make sure you're on the right site and there's a green lock on the address bar - learn some coding if you want to use the safe way: https://www.myetherwallet.com/ It's pretty easy to import your wallet.


3

If you have the right private key (and from the looks of being 64 hex characters or 32 bytes it seems right), then you do not need anything else. Just import that into any client and you should be good to go. See this question on how to do it: How to import a plain private key into geth or Mist?


2

Have you tried using your presale password for account 2?


2

No. From the Ethereum presale message: You are about to make an ether purchase. Please keep the attached wallet file safe. It will serve as a cryptographic receipt of your purchase, along with your password. The password you created and entered on the sale site is the key to your ether so please do not forget it. And please note: there are no mechanisms in ...


2

This doesn't appear to be your correct address. I checked on etherscan and it shows no transactions in this address at all. A valid presale address should show the initial balance plus any subsequent transactions. Your presale wallet should be a json file, secured by a passphrase. You can import that into an Ethereum wallet such as MyEtherWallet or Parity. ...


2

If you have taken the contracts from Zeppelin Solidity, then there should be a contract called Ownable. In that contract there is a modifier called onlyOwner and the contract should look something like: address public owner; function Ownable() public { owner = msg.sender; //ownership is assigned to the address used to deploy contract } modifier ...


2

So the math is as follows, 1 coin = 1 * 10**3 = 1000 So 1 coin for 1 wei = 1000 coins for 1 wei since the coin is of 3 decimals. Hope this answers your question


1

I guess I have an answer to my question without anyone responding here - // fallback function to buy tokens function () payable { buyTokens(msg.sender); } A fallback is used when the code is run from the address and when the data is specified the 4 four bytes specifies the function.


1

Solidity code based on the solution by @Ismael, assumes linear increase in price. // tokens sold uint256 tokensSold; // tokens to be sold in total uint tokensToBeSold = 100000000*(10**18); uint ip = 5000; uint fp = 10000; // final price - initial price uint256 pd = fp - ip; // total supply * initial price uint256 tsip = tokensToBeSold * ip; // helper ...


1

I wasn't able to use the Ethereum wallet I tried on my mac and PC. I upgraded mist and ethereum wallet sync'ed nodes. Nothing worked. As a last resort I used https://www.myetherwallet.com it worked like a charm and I was able to transfer my ether to a safe exchange (Safe enough). If you do this then make sure you first test opening a small wallet (a ...


1

Open the wallet with notepad and you will find on the end "ethaddr":your address.


1

If you have your Ether presale file (the JSON file before it was a keystore file) it has the BTC address (labeled as BtcAddr) that made the purchase. Make a copy of your presale file, open it in TextEdit or Notepad++, and there's your Bitcoin address. Then go to a Bitcoin block explorer and you can easily find the transaction for the purchase.


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