# Transactions and Key Management

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Understanding how **transactions** occur within the BSV blockchain is essential, as it is fundamentally a digital cash system. Transactions involve the transfer of coins from one owner to another, and this process is facilitated through the use of **public and private key pairs**.

* **Public Key**: Similar to a username, it is shared with others to receive coins.
* **Private Key**: Comparable to a password, it is kept secret and is used to authorize the transfer of coins.

When **Owner 1** wishes to send coins to **Owner 2**, they obtain **Owner 2's public key** and use their **own private key** to authorize the transaction. Once the coins are transferred, **only Owner 2** can use their **private key** to send those coins to another party. This system of key management ensures security and traceability of transactions while preserving user privacy.


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