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This introductory guide should be read together with practical risk controls. Blockchain is a method for recording and verifying data, while digital assets are only one application. Start by learning public and private keys, addresses, signatures, consensus, and confirmations, then distinguish wallets, exchanges, and on-chain applications. Before sending funds, verify the network, address, and amount, make a small test transfer, and keep the transaction record. Never share seed phrases, private keys, passwords, or verification codes with support agents or strangers. Prices can be highly volatile and past performance is not a promise of future results. Check official documentation, block explorers, and project announcements, and consider local rules before acting.