Robinhood Chain glossary | Hoodchain.info

Network and execution

Layer 2: A network that executes transactions separately while using a Layer 1 such as Ethereum for settlement or security.
Rollup: A system that batches transaction results and posts data or commitments to a settlement chain.
Sequencer: The component that receives and orders transactions before rollup batches are finalized.
Settlement: The process by which transaction state receives stronger backing from Ethereum.
Data availability: The ability to retrieve the data required to verify or reconstruct network state.
Finality: The degree of confidence that a transaction will not be reversed.

Wallet: Software or hardware that manages keys and signs transactions.
RPC: An endpoint used by wallets and applications to communicate with a blockchain.
Chain ID: A numeric network identifier used to distinguish one EVM network from another.
Gas: The fee paid to execute a transaction or smart-contract operation.
Explorer: A service used to inspect addresses, contracts, transactions, and blocks.

Bridge: A mechanism for moving value or messages between networks.
Canonical bridge: The bridge tied to the network’s official rollup architecture.
Challenge period: A delay that can apply to canonical rollup withdrawals before final claiming.
Liquidity bridge: A third-party bridge that advances liquidity and settles through its own mechanism.

Contract address: The unique blockchain address of a smart contract on a specific network.
Proxy: A contract pattern that can route calls to an upgradeable implementation.
Approval: Permission granted to a contract to transfer a token up to a specified amount.
Pause or blacklist control: An administrator capability that can restrict contract operation or selected addresses.

Stock Token: An onchain instrument whose value references a share or ETF under the issuer’s legal structure.
Reference asset: The share, ETF, or other instrument whose value the token is designed to track.
Authorized participant: An approved institution involved in creation, redemption, or liquidity processes.
Multiplier: A mechanism used to adjust displayed token quantities or values for corporate actions.
Liquidity: The ability to buy or sell without causing excessive price movement.
Slippage: The difference between an expected trade price and the executed price.