# X.1 Terminology

1. **Blockchain**: A distributed and secure database where data is stored in blocks linked together with cryptography.
2. **Mainnet**: The primary network of a blockchain where real transactions and activities occur and hold economic value.
3. **Testnet**: A blockchain's test network used to experiment with features and updates without affecting the main network.
4. **Stellar Consensus Protocol (SCP)**: A consensus protocol used in the Stellar blockchain network, ensuring decentralization, security, and energy efficiency.
5. **Node**: A device or computer participating in a blockchain network, maintaining and validating transactions.
6. **Transaction Per Second (TPS)**: The number of transactions a network can process per second.
7. **Public Key Infrastructure (PKI)**: A cryptographic system using public and private key pairs to secure transactions and data.
8. **Digital Signature**: A security mechanism using digital signatures to verify the integrity and authenticity of transactions.
9. **Smart Contract**: Self-executing contracts where predefined conditions are met, operating on a blockchain platform.
10. **NFT (Non-Fungible Token)**: A unique digital asset on a blockchain that cannot be replaced or exchanged similarly to cryptocurrencies.
11. **DeFi (Decentralized Finance)**: Decentralized financial systems that operate without intermediaries like banks.
12. **Layer 2**: Scalable solutions built on top of blockchains to reduce load, and transaction fees, and increase processing speed.
13. **Token**: A unit of value issued by a blockchain project, representing specific assets or utilities.
14. **DApp (Decentralized Application)**: Applications that operate on a blockchain without the need for central servers.
15. **Gas Fee**: Transaction fees on a blockchain, paid to miners for transaction confirmation.
16. **KOL (Key Opinion Leader)**: Influential individuals in the community who are followed by many and can influence others' decisions.
17. **KOC (Key Opinion Consumer)**: Influential consumers who share their experiences and reviews of products with the community.
18. **Staking**: The process of holding and locking a cryptocurrency in a wallet to support the blockchain network's operations and earn rewards.
19. **Airdrop**: The process of distributing free tokens or cryptocurrencies to users to promote a project or encourage participation.


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