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A Bitcoin wallet is a digital tool that allows users to store, send, and receive Bitcoin. It consists of a pair of cryptographic keys: a public key (address) for receiving funds and a private key for authorizing transactions. Wallets come in various forms, including software (mobile, desktop, or web-based), hardware (physical devices), and paper wallets (printed keys). They interact with the Bitcoin blockchain to track balances and process transactions securely. While wallets don’t physically hold Bitcoin, they manage access to the blockchain records tied to the user’s address. Security is critical, as losing the private key means losing access to the funds. Wallets prioritize ease of use and safety, often featuring backup options like seed phrases for recovery.