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Questions tagged [addresses]

Addresses are the particulars of names, domains or accounts on the blockchain.

79 questions with no upvoted or accepted answers
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1answer
256 views

What are 'payable' state variables?

https://solidity.readthedocs.io/en/latest/solidity-by-example.html#simple-open-auction pragma solidity ^0.4.22; contract SimpleAuction { address payable public beneficiary; What exactly does ...
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1answer
133 views

Receive deployed contract address by transaction hash with JSON-RPC request

I want to receive deployed contract address by transaction hash. Transcation example - 0x996a683acd59a2ad17461f76ce0f387a89a5ac257ec5d667556219c6acc7f45a. As you can see this contract was deployed by ...
4
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3answers
160 views

Can a contract control another address?

Say I have control of addresses A and B, and I am writing contract C. When I deploy C on the blockchain, it will have it's own address, that can send and receive ether. But I want to have a method on ...
3
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1answer
221 views

Create Accounts Using Web3.js in Browser

TL;DR - Replicated Ethereum Blockchain. Running Local Node. Connecting Local Node to Web3.js in browser using RPC. Want to create addresses & send transactions Details - I have a blockchain that ...
3
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0answers
189 views

How to transfer coins from Super Contract back to account

Some funds were mistakenly transferred to an ethereum based smart contract address instead to a personal address. Is there any way anyone (coin developers maybe) can transfer coins from this smart ...
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2answers
58 views

How to generate a new token for ERC1155?

Developing an ERC1155 contract, how to generate an address for a new token? I need to create an API function like function createToken() returns (address). How? Should I just use an incrementing-by-...
2
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0answers
45 views

Combine two addresses into one

I want Solidity code to define a function f that would map two Ethereum addresses A, B into a new address X = f(A,B) such that there is nearly zero probability that X is an already taken address (an ...
2
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1answer
152 views

Communicating between a Sidechain and a Mainchain

Side chains (see linked question ) can be seen as a blockchain attached to a "parent" blockchain using a "two way" peg. Smart contract addresses are generated deterministically(HD wallet style), but ...
2
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0answers
235 views

How to export extended (master) public key from MetaMask

I want to export extended public key for watch-only access to all ethereum addresses in the MetaMask HD wallet at once. It's very usefull for tracking of all portfolio/wallets in one place, especially ...
2
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0answers
225 views

What exactly is an extended public/private key?

How do they differ per derivation level? For example is the extended public key of the master node equivalent for all intents and purposes as a depth 3 node's extended public key? Therefor can I ...
2
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0answers
115 views

How get public address from State Root leaf node (code inside)?

In article "Understanding the ethereum trie"is written that: For the state trie, the keys are ethereum addresses. So i obtain State Trie and in that trie I got Merkle Leaf node: ['9:', ' LEAF ...
2
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2answers
526 views

How to programmatically generate sub addresses using the root address in hd wallet?

And without using the private key. I've been digging into the ConsenSys's eth-lightwallet, although it uses a derived private key to generate the address which would expose the root private in danger. ...
2
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1answer
272 views

convert padded topics address to valid address string

I am parsing some information from the topics array. I receive 32bit padded addresses in some indexes. Is there a web3 utility function or useful helper method to get these back into normal sized ...
2
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4answers
491 views

How to implement a watching wallet for thousands/millions of addresses

I need to check for customers' deposits and need to scan for receiving transactions for those addresses for Ether and in next step ERC-20 tokens. What's the most efficient way to do this with go-...
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1answer
44 views

Different address make same signature for one message

Is it possible two different wallets (address) make the same signature for one message? I have one message: '...
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0answers
11 views

Any idea how to add new contracts into drizzle react app using the address?

I have a react app which creates new contracts. lets say A creates B. I have the addresses of the newly created contracts of B. How do i add the newly created contracts of B using its address to ...
1
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1answer
71 views

Enigma “secret contract” and concealing transactions history: How is it possible?

Enigma protocol is a second-layer, off-chain network that aims to solve privacy issues in blockchain. However In Enigma blog, there is an article (Link to Article), explaining the secret contract, ...
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0answers
68 views

Ecrecover wrong address is returned

I'm trying to validate signed data with ecrecover. The message is signed like this on the FE: return this.web3.eth.personal.sign( `${nonce}`, publicAddress ).then( ( signature ) => { ...
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0answers
37 views

Is there a way to figure out if 2 (or more) address is belong to same HD Wallet account or not?

I'm a new to Wallet concept, I know that a HD Wallet structure is created from a root seed as Mnemonic Code, from that HD Wallet help to generate child keys as the meaning of multiple difference ...
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0answers
42 views

What useful information can we get from ethOS mining log?

What useful information can we get from ethOS mining log information ? For example, can we find the ethereum address of this miner from this log information ?
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1answer
125 views

Byte32 error, even after converting string to hex

I looked everywhere for people with similar problems, but I couldn't find anything. I am confused why I keep getting this error (yes, I know others have had this error too, but not for the same ...
1
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1answer
206 views

How to have an address inside a solidity Struct?

My problem Suppose I have this struct: struct TextThatWorks { bytes32 text; uint reads; } How can I add a address variable to it? What I tried I tried simply adding address ...
1
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1answer
511 views

ERC20 tokens transactions' history from Ethereum node

I have a parity node. I developed a web3.js interface on top of it. I have APIs whose job is to fetch addresses' balances and transactions. Example response of transaction API: { tx_hash: '...
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3answers
242 views

Transaction receiving ether from a contract address

Are transactions sending ether from contract addresses to normal addresses listed in block.transactions or are they not trivial to detect? If not in block.transactions than how to detect?
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0answers
453 views

Whats going on with these mysterious ethereum addresses?

A while ago I found website ethersecret.com which turned out to be very interesting; it provides a search engine for ethereum private keys and their corresponding addresses and whether they hold any ...
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0answers
25 views

How load out data from blockchain when it occupies too much space?

If the blockchain working long enough it fills the memory of the mining device, how to load out the data and then rerun the system? and why does my mining device has different miner address every time ...
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0answers
156 views

Mist main wallet address changed after instalation

During the instalation of mist on a mac I get to the following screen: I then have to wait for synching to complete. During this time I can deposit ether into my wallet using Bitcoin or just use the ...
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0answers
313 views

I accidentally sent the same transaction twice because it was pending

I seem to have gotten myself in a bit of a pickle. I sent some ether to another one of my wallets. The gas price was too low and it was pending for hours. I read online that if you send the same ...
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0answers
439 views

MyEtherWallet - address doesn't match

Well, I'm pretty certain I' screwed, but I figured I'd ask for help just in case. I created one, and only one wallet on MEW. I was meticulous about saving my Private Key and address correctly. I ...
1
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1answer
459 views

C# - Convert Ethereum ABI Address To String (Solidity)

I'm new to Ethereum so please excuse my ignorance. Ethereum seems to have an ABI serialization protocol called Solidity. The spec is here: https://github.com/ethereum/wiki/wiki/Ethereum-Contract-ABI ...
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0answers
138 views

How to collect addresses with a specific token

I run a local eth node on my server and would like to collect all addresses which hold a specific token. In addition I'd like to supply them with another token. One way I researched is to send them ...
1
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1answer
458 views

Is creating new account per unique user OK in Ethereum?

When using Bitcoin one can generate new address per user of service and save pair (address -> userId), so it is always obvious which specific user sent coins. Also, all these coins are stored in the ...
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0answers
194 views

Link a profile page to an ethereum address?

If I have made a page with meteor where a user can login and see his own personal profile page, is it then possible to link that profile page to an ethereum address, so the user can update his profile ...
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2answers
660 views

Problem to use an address within a contract. Error: invalid address

I have a private blockchain. I am creating a contract and then I am calling a function that returns the main account. I have the error calling this function. This is the contract creation code: var ...
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0answers
211 views

How to convert Ethereumj byte arrays to Strings?

Ethereumj gives a lot of byte arrays, when the equivalent would be a string in Bitcoin. A few examples (in Scala) ECKey.getAddress // returns Array[Byte], need String Transaction.getHash // returns ...
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0answers
89 views

Account/Contract address of people responsible for Ethereum Attacks?

I believe there has been a hard fork following the DAO attack; I guess it's not possible to get the contract/account address for the person responsible, unless I am wrong and there is a way, please ...
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0answers
1k views

Is my address valid?

I'm using Blockcypher's API (https://dev.blockcypher.com/eth/#generate-address-endpoint )to generate Ethereum addresses. One such address that has been generated is :- Public Address (...
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0answers
85 views

Is it possible to convert Ethereum merkle patricia trie to [{address: balance}, {address: balance}, {address: balance}… ]?

From Merkle Patiricia Trie, seems to be difficult to get all keys, so the only way to make [{address: balance}, {address: balance}, {address: balance}... ] for all accounts (including contracts), ...
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0answers
46 views

Total Unique Addresses Count of Ethereum Classic

I need to find an API giving the total number of unique addresses used on the Ethereum Classic blockchain. For example, the following API provides it for Bitcoin: https://api.blockchain.info/charts/n-...
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0answers
42 views

Unable to Unlock Account Even After specifying allow-insecure-unlock

Software: Ubuntu on VirtualBox Update, tried putting two dashes, on allow-insecure-unlock, doesn't work solidity@solidity:~$ geth attach http://127.0.0.1:8545 --allow-insecure-unlock Incorrect Usage:...
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1answer
30 views

How can I implement redactable chain for ETH?

I am trying to research about Redactable blockchain so my question is how can I implement a Redactable chain in Eth if someone has some idea about it I will be thankful
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0answers
37 views

Ethereum payment processor Nodejs

I'm working on a web project where I need to have the ability to accept crypto payments. Implementing bitcoin was fairly easy as there were api's whom allowed me to directly subscribe to a specific ...
0
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1answer
39 views

Is there any API to create Addresss and wallet as well as make transfer for ETC (Ethereum Classic)?

There is balance checking, transaction list and transaction receipt getting APIs available for Ethereum Classic (ETC)? Is ETC coin is only available on Ethereum Classic or its listed block explorer ...
0
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1answer
17 views

Address Payable and New Contracts

The following compiles in 0.4.26, but not 0.5.0. The error is "Type contract CustList is not implicitly convertible to expected type address." I figure it's something with address payable, but I have ...
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0answers
32 views

The reasons behind using public/private and addresses?

I understand that we need a public/private key so anyone can sign a message and miners can verify the signature using the public key. But, In this Question Relationship between Ethereum Address and ...
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0answers
27 views

Are there any examples of ETH addresses that periodically send or receive funds at regular intervals?

I'm looking for any known ETH addresses that send or receive money at regular intervals. For example, once per day, an amount from a hot wallet might be sent to a cold wallet. Are there any widely ...
0
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1answer
307 views

MetaMask - RPC Error: Error: WalletMiddleware - Invalid “from” address

I'm trying to create a simple Dapp (via tutorial) which would allow me to send Ether from sender to receiver (via a contract with an address that automatically approves the transaction). The truffle ...
0
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1answer
146 views

How to convert Postgres BYTEA format to Ethereum string address (PYTHON)?

Bytea (hex) is format of PSQL. It is used by many explorers/dapps/apps to store ethereum address. how to convert this format to Python String? By default it is read as a memory view. More on Bytea: ...
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2answers
25 views

web3js returns non-checksumed addresses!

Why does web3js 0.20.6 returns all-lowercase addresses on contract creation not a checksumed address?! How to deal with this trouble?
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0answers
28 views

Why does return address(player) return a weird string?

I am trying to get the player's address through front end and when I run through the solidity function that should return the player's address, it would return ...