Questions tagged [tokens]

A token is a transferable, divisible object on the blockchain, such as a subcurrency or a prediction market share.

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1answer
1k views

“Intrinsic gas too low” error when deploying the crypto recipe from Ethereum.org

Using the latest version of Mist on Mac OSX, I'm simply trying to deploy the crypto coin recipe straight from the Ethereum website and deploy on the Mist test net. The code compiles with no errors ...
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1answer
2k views

Is it possible on Ethereum to create a token this way?

Can I make a token using Geth or another Dapp or method and meet these conditions: a) I should be able to create the token conveniently without too much programming involved b) I should be able to ...
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0answers
188 views

“No data is deployed on the contract address” [duplicate]

Following token tutorial on ethereum.org, get error message No data is deployed on the contract address Forgive me, but I am new to mist. How do I find the "MyAdvancedToken" in Mist?
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2answers
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How can I get Digix Dao ethereum tokens off of an exchange (coinbase)

Basically what happened is that I tried to trade 30 ether for digix dao tokens using shapeshift. I entered an ethereum address on myetherwallet as the destination address where I wanted the DGD to go ...
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0answers
146 views

Is there a token future market on Ethereum? [closed]

I was wondering if there is something similar to Cryptoderivatives but structured as a future exchange, maybe using the block number as the timeframe? I couldn't find any.
2
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1answer
502 views

How does automatic selling and buying with the constantly flowing price work?

From the docs: AUTOMATIC SELLING AND BUYING So far, you've relied on utility and trust to value your token. But if you want you can make the token's value be backed by ether (or other ...
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1answer
681 views

Buy and sell of my tokens

How to implement the buy of tokens. That is, the customer transfers money to the address and receives tokens at his account. And Similar to sold?
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5answers
30k views

Paying a transaction fee with an ERC20 token

As far as I understand, one of the ERC20 token's features is that you can pay a transaction fee with it. In other words, you can send them without having Ether. I transferred REP tokens to the ...
0
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1answer
816 views

How can I check an address to see what custom tokens has been generated at it?

How can I check an address to see what custom tokens has been generated at it? This is a testnet (Ropsten) address for example: 0xc8f836f4236e3e58f5417589b2d677abd7558cd5 I know that on Ropsten it ...
4
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1answer
257 views

If getters are automatically created, why does the Standard Token have balanceOf()?

Isn't it redundant to have a function that returns a simple public variable like this?
4
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1answer
476 views

Building a floating rate on the tokens

For example. I can make a static price. function setPrices(uint256 newSellPrice, uint256 newBuyPrice) onlyOwner { sellPrice = newSellPrice; buyPrice = newBuyPrice; } But how can make a ...
5
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1answer
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Does The Ethereum Wallet / Mist Standard Multisig Wallet Support ERC20 Tokens?

This question was prompted by Any multisig wallets for Ether?: Are there any multisig wallets available for ether and other ethereum-based tokens?
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4answers
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How can I find out the token balance of some address?

How can I find out the token balance of some address using Solidity? For example, I have the address of another person, and I need to know the number of tokens on his account.
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1answer
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Performing a smart escrow with ERC20 tokens

After developing a token Smart Contract that is compliant with the ERC20 standard https://github.com/ethereum/EIPs/issues/20 (is that the same as token API https://github.com/ethereum/wiki/wiki/...
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2answers
308 views

How do I get tokens still unsupported after crowdsale?

If I want a token, say GNT, that is not listed on exchanges and I missed the presale, what are my options?
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1answer
2k views

Unable to make a connection to the Parity Secure API

Parity V1.4.9 giving this error on startup frequently. Unable to make a connection to the Parity Secure API. To update your secure token or to generate a new one, run parity signer new-token and ...
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0answers
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Is there a way to know about the upcoming ICOs? [closed]

I was just wandering if there is a place that lists all the upcoming Initial Coin Offerings that take place on Ethereum?
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1answer
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Can an ethereum contract hold ether for a group

I'm struggling to understand what can be accomplished with smart contracts. Can they actually hold (or force a transfer at completion of) ether? Could they work almost like an escrow account? Or ...
4
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1answer
68 views

What are the brackets for in SingularDTV crowdfunding contract

I can't figure out what the brackets are for in this line of code, initializing the SingularDTVFund: SingularDTVFund constant singularDTVFund = SingularDTVFund({{SingularDTVFund}});
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0answers
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Why have most REP token transfers been failing?

Almost all REP transfer attempts have been failing recently: https://etherscan.io/address/0x48c80F1f4D53D5951e5D5438B54Cba84f29F32a5 This seems to have started about a month ago. Poloniex, Kraken ...
2
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1answer
152 views

Trying to send ARC (Arcade City) tokens via MEW and encountering issues

I'm trying to move some ARC tokens from one place to another but encountering an error. Link to transaction: https://etherscan.io/tx/0xd350ac4b5eba650957c9a086f851f1914bec0fe4808566bdc5fa26e0e0d9d80a ...
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1answer
738 views

How do I find a list of the Golem Network Token (GNT) TokenTrader contracts?

The Golem Network Token (GNT) TokenTrader contracts enables the trustless and decentralised sale of GNTs for ethers (ETH). A seller deploys one of these TokenTrader contracts using the ...
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2answers
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How can ERC20 token implementations be verified?

The ERC20 Token Standard is great, in that it allows wallets, exchanges, and client implementations to allow users to interface with a variety of tokens in a common way. But how can one of these ...
4
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1answer
115 views

Is there any way for a contract to know when it gets sent a token?

Is there any way for a contract to know when it gets sent a token? Does it help if it knows the address of the token? I'm making a contract that's meant to divvy up tokens among a group of people as ...
3
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1answer
656 views

Why Are My The DAO To ETH Refunds Failing?

A user on thadao.slack.com was having trouble withdrawing their refunds from The DAO Withdrawal contact. I checked the WithdrawDAO contact and noticed that there are many other transactions failing: ...
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1answer
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Tokens and Mist [duplicate]

Is there a certain set of functions and variables that a Token contract has to implement so Mist can handle the Token display? In the Crowdsale example Tokens are used. But there is no interface ...
4
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1answer
3k views

How to get the token-balance of an external token in my contract

I'm building a token contract with a sell and buy function. User should be able to buy my token not only for eth but also for another token, that I define. Therefore I need the balance mapping of the ...
3
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1answer
727 views

Tokens All-or-Nothing Atomic Transaction Support

I'm running into a situation where i need to do an atomic transaction the spans multiple contracts. The issue is it seems that ethereum doesn't support this natively. What i ended up doing is ...
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0answers
219 views

How to send custom tokens without ether? [duplicate]

I would like my customers to send a custom token without thinking of a certain amount of ether for gas. So I've tried the standard-token at ethereum.org. There's a way described to auto refill the ...
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2answers
2k views

What happens if you transfer real tokens to a test account?

What happens if you transfer real tokens to a test account? The Ethereum wallet says that you shouldn't do it, but it doesn't say why.
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2answers
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Float not allowed in solidity vs decimal places asked for token contract

We know that solidity doesn't support the float values. But here (https://www.ethereum.org/token#understanding-the-code) they accept one input parameter 'decimal places' for calculation purpose. How ...
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1answer
113 views

If I try to send to send ether to the standard token contract, the tx is rejected. Even if function() is modified as below. Why?

/* If I change it like that it still fails */ function () { amount += msg.value; } Is there something like, it's generally not possible to send eth to a token contract?
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1answer
661 views

When can First Blood 1ST tokens be transferred?

This question was prompted by the reddit question Why have all 1ST token transactions an error? and Error sending transaction to the First Blood crowd sale contract.
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1answer
874 views

Can I call contract function (balanceOf) based on block number?

I want to check the DAO balance address in the specify time(block number) Is it possible to specify the block number when calling a contract function in web3. var contract = web3.eth.contract(abi)....
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4answers
2k views

How can I verify that token balance (not ether balance) sent in a transaction were indeed transferred successfully?

In a transaction in which some token (e.g. DGD, DAO) balance is transferred, there is no need to verify that the address has enough tokens before sending the transaction. But if the sender doesn't ...
2
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1answer
1k views

Multiple tokens types in a wallet

I'm looking to run a private Ethereum blockchain. But I wanted to check first, is it possible for an account to hold multiple custom tokens? For example, can an account hold tokens that denote very ...
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2answers
2k views

ERC20 Tokens with Rewards?

How hard is it to implement rewards into ERC20 Tokens? By this I mean a ERC20 Token that receives a reward in the form of Ether from a rewardAccount that is distributed evenly between all tokens. ...
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1answer
51 views

In the Mix IDE how do I view tokens belonging to a user

In the Mix IDE is it possible to view the tokens a user currently has in their account for debugging purposes.
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2answers
99 views

Can a decentralized exchange do secure price discovery for attacker-controlled tokens?

Imagine we have several different tokens, and we want to know which one is most valuable. Tokens are contracts with methods to satisfy the Token API. If you have a decentralized exchange, you can put ...
5
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1answer
352 views

Can you interact with other blockchains' tokens by using an Ethereum smart-contract?

Let's say that a dev has a public and private key of an address on another blockchain. He wants to create a smart-contract that can interacts with these coins, for moving them, for selling them, etc. ...
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1answer
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Can an Ethereum address hold more than Ether?

Let me explain it with examples. On Bitcoin protocol, for example, you have Counterparty. As it uses embedded consensus, every XCP address is linked to a Bitcoin address. So if you hold bitcoins on ...
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2answers
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How do I convert my The DAO tokens into ethers on the Ethereum Classic chain?

According to Whitehat Withdrawal contract - Update and Next Steps and Whitehat Withdrawal contract - Last update before deployment, the Goodies will be deploying the withdrawal contracts whetcwithdraw....
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1answer
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How can I verify that my The DAO token balance is correct when the Goodies provide an ETC refund on the Ethereum Classic chain?

From the blog post The White Hats and DAO Wars: Behind the Scenes, the Goodies intend to: develop the smart contracts that will be used to distribute ETC to the addresses holding DAO Tokens at block ...
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0answers
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Getting garbage after calling property in another smart contract.

I'm using liquid democracy contract from https://www.ethereum.org/dao This is the relationship. Shareholder Association has this definition when pointing to liquid democracy contract. contract ...
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2answers
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Token transfer: Intrinsic gas too low

I have created a cryptocurrency by following this link .I have deployed the contract in Mist. I am using transferFrom() function in Ethereum wallet to transfer currency from one account to other but ...
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1answer
633 views

Understanding TokenCreator/OwnedToken example from Solidity documentation

Here's the page containing the example https://solidity.readthedocs.io Here are two contracts that are supposed to work together(my questions are below): Here's how I think it works. Please correct ...
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2answers
1k views

Which accounts contributed to The DAO's extraBalance account?

Anyone who bought DAOs in the last two weeks of The DAO crowdfunding phase paid more than 1 ether (ETH) per 100 The DAO tokens (DAO). The ETH amount in excess of 1 ETH per 100 DAOs was stored in The ...
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1answer
678 views

Withdrawing ETH from DAOs on Poloniex

Guys I really need your help. I had purchased DAO tokens initially from this address: 0xA54367910EFEBA7B03B0aEcd8fFa62181b612038. I had 9000 tokens. When the attack happened I transfered them to ...
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1answer
491 views

MyEtherWallet The DAO withdraw is stuck, can I continue manually?

I believe the withdrawal process for my test amount of DAO to be withdrawn to Ether got stuck after the approval function, it now shows 0 amount of DAO but Ether didn't increase. Can I manually resume,...
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1answer
4k views

How do I get a refund for my The DAO tokens that was split into a child DAO?

The DAO token holders that split away from the main The DAO into a child DAO will have moved the tokens (DAO) and the corresponding ethers (ETH) into the child DAO. As these DAO token holders have a ...