Approve Pattern
Based on ERC20 token learn the rules for transfering tokens, including the approval pattern when a user wishes to instruct a vendor contract to sell a proportion of their tokens.
Based on ERC20 token learn the rules for transfering tokens, including the approval pattern when a user wishes to instruct a vendor contract to sell a proportion of their tokens.
As data in a blockchain is public, it is impossible to store them secretly.
Blockchain Academy
Etherum Smart Contracts Protocols.
Best practice layout for Solidity contracts.
Ethereum allows a Dev to create a simple set of rules that an adversarial group of players can use to work together.