> For the complete documentation index, see [llms.txt](https://help.tokenpocket.pro/en/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.tokenpocket.pro/en/blockchain-basics.md).

# Blockchain Basics

- [What Is Blockchain?](https://help.tokenpocket.pro/en/blockchain-basics/blockchain-definition.md)
- [What Is Decentralization?](https://help.tokenpocket.pro/en/blockchain-basics/what-is-decentralization.md)
- [What Is a Decentralized Wallet?](https://help.tokenpocket.pro/en/blockchain-basics/what-is-a-decentralised-wallet.md)
- [What is a USDT Wallet and How Does it Work?](https://help.tokenpocket.pro/en/blockchain-basics/what-is-a-decentralised-wallet/what-is-a-usdt-wallet.md): This article takes a deep dive into what a USDT wallet is, how it works, and what to look out for when choosing one.
- [Why TokenPocket](https://help.tokenpocket.pro/en/blockchain-basics/why-tokenpocket.md)
- [What Is the Private key, Mnemonic and Wallet Password](https://help.tokenpocket.pro/en/blockchain-basics/what-is-the-private-key-mnemonic-and-wallet-password.md)
- [What Is the Gas Fee?](https://help.tokenpocket.pro/en/blockchain-basics/what-is-the-gas-fee.md)
- [What Is DeFi ?](https://help.tokenpocket.pro/en/blockchain-basics/what-is-defi.md)
- [What Is DEX ?](https://help.tokenpocket.pro/en/blockchain-basics/what-is-dex.md)
- [What is keystore](https://help.tokenpocket.pro/en/blockchain-basics/what-is-keystore.md)
- [What is a cold wallet](https://help.tokenpocket.pro/en/blockchain-basics/cold-wallet.md)
- [What is a hot wallet](https://help.tokenpocket.pro/en/blockchain-basics/hot-wallet.md)
- [What is a watch wallet?](https://help.tokenpocket.pro/en/blockchain-basics/watch-wallet.md)
- [What is a multi-sig wallet?](https://help.tokenpocket.pro/en/blockchain-basics/multisig.md)
- [What is a hardware wallet](https://help.tokenpocket.pro/en/blockchain-basics/hardware-wallet.md)
- [What is an extension wallet?](https://help.tokenpocket.pro/en/blockchain-basics/extension-wallet.md)
- [What is a passphrase](https://help.tokenpocket.pro/en/blockchain-basics/passphrase.md)