Ethereum

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Awarded 5016 times.
How to send ERC20 token from smart contract in Solidity?
Awarded Apr 14 at 15:55
How to Calculate How Long an Address Has Held A Token? (for paying interest/rewards)
Awarded Apr 14 at 2:30
…is an abstract contract or an interface and cannot be deployed
Awarded Apr 13 at 22:10
Unhandled Rejection (TypeError): this.provider[(intermediate value)(intermediate value)(intermediate value)] is not a function
Awarded Apr 13 at 17:55
How to fix Data location must be “memory” for return parameter in function, but none was given.?
Awarded Apr 13 at 15:50
Using “.value(…)” is deprecated. Use “{value: …}” instead
Awarded Apr 13 at 7:05
Can you force your smart contract to only process transactions in separate blocks
Awarded Apr 12 at 4:45
How does miners vote to determine the block gas limit?
Awarded Apr 11 at 20:35
List Ethereum transactions to: and from: in one const
Awarded Apr 11 at 13:40
How to get a index position of the storage on the smart contract?
Awarded Apr 11 at 6:50
Ethereum Parity is stable ~800 blocks behind
Awarded Apr 10 at 14:10
Transactions Stuck. Offline transaction cancelling is not working either
Awarded Apr 9 at 12:25
Read data from VIEW function on deployed contract
Awarded Apr 9 at 12:00
How to add gas to a Truffle generated account imported to MetaMask
Awarded Apr 9 at 10:55
Smart Contract Deployment Failed PowerShell
Awarded Apr 8 at 5:45
Reading most recent blocks without syncing chain
Awarded Apr 7 at 19:35
Why my contract binary does not set?
Awarded Apr 7 at 8:20
Transfer ERC20 Token - Encountered during contract execution [Reverted]
Awarded Apr 6 at 17:40
Where are “pending” (newly submitted) transactions stored?
Awarded Apr 6 at 15:05
What is the difference between require() and return in an if() statement?
Awarded Apr 5 at 13:55
revert ERC20: transfer amount exceeds balance [closed]
Awarded Apr 5 at 10:30
Uncaught TypeError: Cannot read property 'fromWei' of undefined, working good in one tab and failing in another tab
Awarded Apr 1 at 22:31
Closed, Creating a method to airdrop ERC20 Token B to the holders of ERC20 Token A [closed]
Awarded Apr 1 at 18:35
getTransaction sometimes returns null when transaction is pending
Awarded Mar 31 at 22:40
Is it cheaper overall to store a keccak hash or to store a ripemd(keccak) hash?
Awarded Mar 31 at 5:45
Web3 hex conversion - Reading Events Output
Awarded Mar 30 at 15:55
Interact with smart contract without metamask
Awarded Mar 29 at 7:25
Getting a, “ReferenceError: artificats is not defined” - Error running a simple “approver” test
Awarded Mar 29 at 2:45
Adding modifier for mappings
Awarded Mar 28 at 10:15
Execute smart contract function on python
Awarded Mar 27 at 4:15
ParserError pragma solidity ^0.4.21
Awarded Mar 25 at 20:25
How do I set the constructor arguments when deploying using OpenZeppelin CLI?
Awarded Mar 25 at 13:40
How to prevent someone to replace our smart contract
Awarded Mar 25 at 6:05
Why use nodepools or backends?
Awarded Mar 24 at 17:40
How to pass constructor parameters to solc?
Awarded Mar 24 at 11:40
Does solidity create unique outputs every time it compiles same exact code?
Awarded Mar 24 at 10:30
mapp values do not upadte when calling other functions after populating the map
Awarded Mar 23 at 10:50
What happens with nonce if address have nonempty code and someone submits transaction from that address?
Awarded Mar 21 at 22:40
How can I change the state of a contract if it's stored on the blockchain
Awarded Mar 21 at 22:30
Does returning “false” prevent bool function from further execution in Solidity?
Awarded Mar 21 at 18:25
Value of emitted events in App.js
Awarded Mar 21 at 13:45
ERC-20 Token Smart Contract Redeployment
Awarded Mar 21 at 13:00
is smart contract excution in every node give the same result?
Awarded Mar 20 at 23:55
Why is Etherscan's “Pending transactions” count so huge?
Awarded Mar 20 at 19:55
Are arguments from Provable callback's function mandatory?
Awarded Mar 20 at 12:15
Why are etherscan ENS events so old?
Awarded Mar 19 at 16:45
Error: connection not open on send()
Awarded Mar 19 at 8:05
Compute transactions trie root hash from a BlockBodies message using ethereumjs
Awarded Mar 19 at 3:55
How can I convert an element of a byte32 array to number?
Awarded Mar 18 at 16:05
When testing a contract, NodeJS returns: “SyntaxError: Unexpected token u in JSON at position 0”
Awarded Mar 18 at 13:40
How can I use the mathematical constant e in Solidity?
Awarded Mar 18 at 3:30
Call of contracts function reverted
Awarded Mar 17 at 8:05
Is it possible to create this with Ethereum?
Awarded Mar 15 at 10:55
Unable to send ether to a function of an imported contract
Awarded Mar 14 at 9:10
How to get pending transactions with using geth or other client?
Awarded Mar 14 at 3:05
What is the block number of the first block mined in a private blockchain network deployed on say Quorum?
Awarded Mar 12 at 16:45
Calling smart contract function from another address
Awarded Mar 12 at 1:50
How to get access to the storage mapping through the solidity assembler?
Awarded Mar 11 at 17:15
Can we use secp256r1 to generate valid Ethereum address instead of secp256k1?
Awarded Mar 11 at 14:10
Returns filtered array of structs without push
Awarded Mar 11 at 10:40
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