All Questions
17 questions
0
votes
2
answers
203
views
Why creating ERC20 tokens instead of using ETH?
I have made an online web app which executes a process only if a transaction on the Ethereum blockchain is made. As I was developing my initial thought was to create an ERC20 token so that whoever has ...
- 175
0
votes
1
answer
70
views
Is it possible to write a smart contract that distributes the ETH from a NFT sale to several users whose share depends on the token amount they hold?
I'm new to solidity but I'm determined to learn. My question is, would it be possible to issue a custom token with a maximum supply of 100, which would act as shares? And then for the smart contract ...
0
votes
1
answer
278
views
Reduce gas costs with longer block confirmation times (like in Bitcoin)
In Bitcoin, fees tend to decrease as you target longer block confirmation times. For example, a standard transaction with 1 input and 2 outputs has a fee of approx. $3.06 for confirmation within 6 ...
- 191
0
votes
0
answers
126
views
Is minting gas through gastoken.io still efficient to reduce Ethereum gas costs?
A SE user suggested using https://gastoken.io to mint gas when fees are low in order to save on gas when fees are high. However, I'm wondering if there's any benefit of doing this today.
According to ...
- 191
0
votes
1
answer
836
views
Can a transaction hash be used to identify the sender of a payment?
A user suggested using a transaction hash as a way to track user deposits (especially for ECR20 tokens):
The major issue arises when you start accepting erc-20 tokens as
payment, in that case when ...
- 191
2
votes
0
answers
1k
views
Exchange deposits using smart contracts and externally owned accounts
While researching how different exchanges handle user deposits, I noticed a stark contrast between several prominent exchanges.
Kraken:
Exchanges like Kraken use newly generated deposit addresses (no ...
- 191
1
vote
2
answers
1k
views
Send Multiple ECR20 Tokens from a Single ETH Address in One Transaction?
Is it possible to send multiple ECR20 tokens (i.e, USDT and USDC) from a single Ethereum address (EOA) to another address (EOA) in a single transaction (either with or without a smart contract)? If ...
- 191
2
votes
2
answers
521
views
Someone sent me ethers in multiple transactions and took away my matic tokens nd those ethers
Someone (address: 0xc18842D634A683e6Ea5392e3f9f23a6966C88371) sent me Ether in multiple transactions and took away my Matic tokens and those Ether were sent to another account(address: ...
- 21
1
vote
0
answers
18
views
What happens to the missing coins in this transaction? Copy paste this code into remix to reproduce my original bug. Thank you
pragma solidity ^0.4.24;
contract TheCaseOfTHeMissingCoins{
string public name;
string public symbol;
uint8 public decimals = 18;
address public owner;
mapping (address => ...
- 11
0
votes
1
answer
2k
views
multiple transfer?
First of all, hello. we will write a token for a project we have developed. We are creating new tokens, we want to write a simple contract on remix ethereum. We will distribute a large portion of the ...
- 3
0
votes
2
answers
81
views
How can I send ether or erc20 tokens right after incoming ether transaction? [duplicate]
maybe also how to develop a small application with the wanted functionality.....
I hope someone give me useful answer. Thanks
0
votes
1
answer
124
views
Transfer event for zero amount
Should I emit Transfer event, when zero amount of Ether or of a token is transferred?
Variants of the answer:
yes
no
both are OK
- 1,854
0
votes
1
answer
60
views
How to send a token with Ether? (several variants)
I want to sell my token to users paying by Ether.
Is it a good idea to require the user to pass his wallet (to receive) Ether as the EVM payload?
Or is it needed to have my private key uploaded to ...
- 1,854
2
votes
3
answers
764
views
understanding value on token transfer transaction
When a token transfer transaction has an ether price associated with it, is it fair to assume that that transaction used ether to buy the tokens?
For example, this transacion triggered by account A ...
- 317
1
vote
2
answers
109
views
Can one smart contract purchase > ethereums total market cap?
Let's say I have a special diamond that's worth more than the total market cap of Ethereum. If I want to connect that diamond to the Ethereum blockchain (through a unique serial number) to verify its ...
- 149
0
votes
1
answer
108
views
Single transaction to transfer everything?
Is it possible (with MyEtherWallet or otherwise) to create a single transaction that moves all ether and tokens from one account to another in the interest of saving as much gas as possible?
6
votes
4
answers
12k
views
Getting notified after receiving tokens
Is there any way to get a notification(PN, Email etc.) when one receives ETH or tokens issued on ethereum?
- 203