What does a Bitcoin wallet store for transactions?

A Bitcoin wallet is primarily designed to store public and private keys, which are essential for conducting Bitcoin transactions. The public key can be shared with others to receive Bitcoin, while the private key must be kept secure as it is used to sign transactions and prove ownership of the Bitcoin associated with the corresponding public key.

Having these keys allows the wallet to interact with the Bitcoin blockchain, facilitating the sending and receiving of digital currency. The wallet itself does not store the actual bitcoins; rather, it contains the necessary keys to access and manage the Bitcoin that exists on the blockchain.

Other options, such as storing physical assets like gold and silver, different countries' currencies, or Bitcoin mining software, are not functions of a Bitcoin wallet. Instead, they pertain to entirely different financial instruments and activities that are unrelated to the fundamental purpose of a Bitcoin wallet.