Bancor Network Token (BNT) is the primary cryptocurrency of the Bancor protocol, which is a decentralized financial platform built on the Ethereum blockchain. BNT plays a crucial role in facilitating the automated, decentralized exchange of various virtual currency tokens directly and instantaneously, bypassing the need for intermediaries like cryptocurrency exchanges.

1. Virtual Reserve Currency:
   BNT acts as a virtual reserve currency, enabling the conversion of other tokens and cryptocurrencies within the Bancor network. It is the default reserve currency for all smart tokens created on the Bancor network.

2. Intermediary for Exchanges:
   When a trade is executed on the platform, the system converts the cryptocurrency to BNT, and then to the desired cryptocurrency. This process allows for seamless and automated exchanges between different tokens and cryptocurrencies.

3. Liquidity Provision:

BNT is used to incentivize liquidity providers to add funds to liquidity pools. By depositing BNT or other supported cryptocurrencies, liquidity providers earn interest in the form of a percentage of the trading fees paid by traders on the network.

4. Governance:
   BNT is also a governance token, allowing holders to participate in decision-making processes such as token whitelistings, trading liquidity limits, fee changes, and Bancor Improvement Proposals.

5. Rewards and Interest:
   Users can earn passive income by depositing BNT or other supported cryptocurrencies into liquidity pools. The interest earned is based on the amount deposited and the trading fees generated by the network.

In summary, BNT is the central token that enables the Bancor protocol to function as a decentralized, automated market maker, providing liquidity and facilitating exchanges between various cryptocurrencies.

To store Bancor Network Token (BNT) tokens, you have several options:

1. Bancor's Unified Wallet: This is a non-custodial wallet where you can manage your ERC-20 and EOS tokens and perform conversions between them. It provides a user-friendly ecosystem for traders and allows you to store and trade your BNT tokens securely.

2. Hardware Wallets: Hardware wallets like Ledger or Trezor offer the most secure option for storing cryptocurrencies. They require more technical knowledge and are a more expensive option, making them suitable for storing larger amounts of BNT for more experienced users.

3. Software Wallets: Software wallets are free and easy to use. They are available as smartphone or desktop apps and can be custodial or non-custodial. Non-custodial wallets use secure elements on your device to store private keys, making them a convenient option for smaller amounts of BNT or for novice users.

4. Online Wallets: Online wallets or web wallets are also free and easy to use, accessible from multiple devices using a web browser. However, they are considered hot wallets and can be less secure than hardware or software alternatives. It is recommended to select a reputable service with a track record in security and custody for storing smaller amounts of cryptocurrencies or for frequent traders.

5. Kriptomat Wallet: Kriptomat offers a secure storage solution, allowing you to both store and trade your Bancor Network Tokens without hassle. It provides enterprise-grade security and user-friendly functionality.

6. Guarda Wallet: Guarda is a non-custodial wallet that supports more than 400K+ assets. You can download the application from the Apple AppStore or Google Play, or install a desktop wallet. It offers a secure and user-friendly platform for managing cryptocurrencies, tokens, and staking.

To buy Bancor Network Token (BNT) tokens, you can follow these steps:

1. Create an account: Sign up on a cryptocurrency exchange that supports BNT, such as Binance, Bancor (V2), or Kriptomat. Verify your email, phone number, and identity to unlock the full potential of the platform.

2. Add funds: Deposit money into your exchange account using a bank transfer or credit card. This will enable you to purchase BNT and other cryptocurrencies.

3. Select BNT: Choose Bancor Network Token from the list of available cryptocurrencies on the exchange. Enter the amount you want to buy and preview the transaction details.

4. Confirm purchase: Confirm your purchase, and the BNT tokens will be added to your account. You can then manage your tokens, trade them, or use them for various DeFi activities on the Bancor network.

Additionally, you can also buy BNT on other exchanges like Coinbase or CoinJar.