Layer 0 Terms
- Layer 0: The foundational layer enabling interoperability between blockchains.
- Cross-Chain: Communication and transactions between different blockchains.
- Interoperability: The ability of blockchains to work together.
- Polkadot: A Layer 0 platform for interoperable blockchains.
- Cosmos: A network of interconnected blockchains.
- Relay Chain: The central chain in Polkadot connecting parachains.
- Parachain: A parallel blockchain in the Polkadot ecosystem.
- Bridge: A tool for transferring assets between blockchains.
- IBC (Inter-Blockchain Communication): A protocol for cross-chain communication in Cosmos.
- Substrate: A framework for building custom blockchains.
Layer 1 Terms
- Layer 1: The base blockchain protocol (e.g., Bitcoin, Ethereum).
- Consensus Mechanism: A method for agreeing on the state of the blockchain.
- Proof of Work (PoW): Mining-based consensus (e.g., Bitcoin).
- Proof of Stake (PoS): Validator-based consensus (e.g., Ethereum 2.0).
- Delegated Proof of Stake (DPoS): Stakeholders vote for validators.
- Block: A collection of transactions recorded on the blockchain.
- Transaction: A transfer of cryptocurrency from one address to another.
- Smart Contract: Self-executing code on a blockchain.
- Gas: The fee required to execute transactions on a blockchain.
- Node: A computer participating in the blockchain network.
Layer 2 Terms
- Layer 2: Solutions built on top of Layer 1 to improve scalability.
- Rollup: A Layer 2 solution bundling multiple transactions into one.
- Optimistic Rollup: A rollup assuming transactions are valid unless proven otherwise.
- ZK-Rollup: A rollup using zero-knowledge proofs for validation.
- Plasma: A Layer 2 framework for scaling Ethereum.
- State Channels: Off-chain channels for faster transactions.
- Sidechain: A separate blockchain connected to the main chain.
- Lightning Network: A Layer 2 solution for faster Bitcoin transactions.
- Polygon: A Layer 2 scaling solution for Ethereum.
- Arbitrum: A Layer 2 solution using optimistic rollups.
General Blockchain Terms
- Blockchain: A decentralized, distributed ledger technology.
- Decentralization: Distributing control away from a central authority.
- Wallet: A tool for storing and managing cryptocurrencies.
- Private Key: A secret key for accessing and managing crypto assets.
- Public Key: A key used to receive cryptocurrencies.
- Address: A unique identifier for sending/receiving cryptocurrencies.
- Hash: A fixed-length string of characters generated from input data.
- Mining: The process of validating transactions and adding them to the blockchain.
- Staking: Locking up tokens to support network operations.
- Yield Farming: Earning rewards by providing liquidity.
Advanced Concepts
- Sharding: Splitting the blockchain into smaller, faster parts.
- Finality: The point at which a transaction cannot be reversed.
- Zero-Knowledge Proof: Proving something without revealing details.
- ZK-SNARK: A form of zero-knowledge proof used in ZK-Rollups.
- ZK-STARK: A more scalable form of zero-knowledge proof.
- Data Availability: Ensuring data is accessible for validation.
- Fraud Proof: A mechanism to challenge invalid transactions.
- Cross-Rollup: Communication between different rollups.
- Hybrid Consensus: Combining multiple consensus mechanisms.
- Modular Blockchain: Separating blockchain functions into different layers.