Web3 and Blockchain in Practice
Web3 and Blockchain in Practice Web3 and blockchain are often described as futuristic tech, but in practice they are tools you can understand and use. A blockchain is a shared ledger that stores transactions in blocks, making history harder to alter. Smart contracts are small programs that run on the network and can automate rules without a middleman. In many projects, teams use a mix of public networks for openness and private networks for privacy. For example, a manufacturer might log shipments on a private chain with permissioned access for suppliers, while users settle payments on a public layer. This combination helps balance transparency with control. ...