How to Convert a unit in ERC 20 contracts

Im using this function to get my Token Balance function balanceOf() { web3.eth.getAccounts(function (error, accounts) { contract.balanceOf(accounts[0], function(err, result) { if(err) { console.log(err, ‘err’); } else { document.getElementById(‘snet-holding’).innerHTML = result; } }); }); } The output of this code is 400000000 while it should be 4; With ether i have found this conversion but how…

Can a miner just introduce a block full of valid predetermined transactions in the blockchain and get rewarded?

My question is – let’s say a miner has control over a certain number of bitcoin addresses. He creates a block containing small transactions to and fro from these accounts ahead of time in advance and also calculates the golden nonce for that block should it be introduced in the chain in the future. Can…

How to create a transaction using BlockCypher API

I am completely new to all of this. I have created 2 accounts on test3 and used a faucet to get some balance. I want to send bitcoin from account “alex” to account “bob”. There are all of the cURL commands I used to create the accounts: $ curl -X POST https://api.blockcypher.com/v1/btc/test3/addrs { “private”: “b917690a81ef3eb62107c291e8075fb80864d05aa29c8b8d5aeda10788fa989c”,…

Accessing a storage array is causing my contract to revert with no explanation

I have the following contract: // Inspired by https://fravoll.github.io/solidity-patterns/eternal_storage.html pragma solidity ^0.5.8; import “./lib/Ownable.sol”; import “./MemberStruct.sol”; contract Registry is Ownable, MemberStruct { // —— // STATE // —— // Maps member address to Member data // Note, this address is used to map to the owner and delegates in the ERC-1056 registry mapping(address => Member)…