Definitions

Robinhood Chain glossary

Definitions of the network's technical and financial terms, with links to relevant projects, contracts and standards.

Account abstraction: Account abstraction allows programmable account rules, including supported forms of gas sponsorship, batched calls and custom authorization.
Across: Across is an intents-based bridge identified among Robinhood Chain's launch integrations.
Alchemy: Alchemy provides Robinhood Chain infrastructure, including mainnet and testnet RPC, WebSocket access and account-abstraction tooling.
Arbitrum Expansion Program: The Arbitrum Expansion Program sets commercial terms for participating chains using Arbitrum technology, including a share of net protocol revenue directed to the Arbitrum ecosystem.
Arbitrum Nitro: Arbitrum Nitro is the rollup software used by Robinhood Chain to execute EVM transactions and post compressed transaction data and state assertions to Ethereum.
Arbitrum stack: The Arbitrum stack provides software and services for dedicated Layer 2 and Layer 3 chains.
Arcus: Arcus offers self-custodial spot and perpetuals trading on Robinhood Chain.

Base prospectus: The Base Prospectus sets out the offering structure, risks and terms of Robinhood's Stock Token programme.
Block explorer: A block explorer displays transactions, addresses and contract information.

Canonical bridge: The canonical bridge is the protocol's native transfer route between Robinhood Chain and Ethereum.
Canonical token: A canonical token is the contract identified by the issuer or protocol for a particular asset on a specified network.
Chain ID: A chain ID identifies an EVM network in wallet configuration and transaction signing.
Chainlink CCIP: Chainlink CCIP, the Cross-Chain Interoperability Protocol, supports token transfers and messages between configured networks.
Chainlink Data Feeds: Chainlink Data Feeds publish onchain reference prices that contracts can read.
Chainlink Data Streams: Chainlink Data Streams supplies low-latency price reports that an application can retrieve and verify when needed.
CLMM: A concentrated-liquidity market maker lets liquidity providers choose price ranges for their capital.

Data availability: Data availability means the transaction data needed to verify a rollup's state is accessible.

EIP-7702: EIP-7702 allows an externally owned account to delegate execution to code while retaining its address.
ERC-4337: ERC-4337 defines account-abstraction infrastructure using user operations, bundlers and an EntryPoint contract.
Ethereum blobs: Ethereum blobs are a data format introduced by EIP-4844 for rollups to publish transaction data.

FCFS ordering: First-come, first-served (FCFS) ordering uses transaction arrival time at the sequencer.

Global Dollar Network: The Global Dollar Network is a USDG distribution network launched by Paxos in November 2024 with partners including Robinhood, Kraken, Anchorage Digital, Galaxy Digital and Nuvei.

Honeypot token: A honeypot token permits acquisition while blocking or imposing prohibitive charges on selling.

L2BEAT stages: L2BEAT's stages describe rollup maturity and dependence on permissioned actors.
Launchpad graduation: Launchpad graduation is the transition after a token meets a platform's launch conditions, often involving a change in trading or liquidity arrangements.
LayerZero: LayerZero provides cross-chain messaging used by bridge and application integrations.
LI.FI: LI.FI aggregates bridge and exchange routes, including through the Jumper interface.
Lighter: Lighter is a perpetuals venue using its own zero-knowledge execution and proving system, with integrations into the Robinhood experience.

Morpho Blue: Morpho Blue provides isolated lending markets defined by a collateral asset, loan asset, oracle, liquidation loan-to-value limit and interest-rate model.
Morpho vault: A Morpho vault allocates deposits across lending markets according to its rules and risk mandate.

No native token: Robinhood Chain's documented design uses ETH for gas without a separate native chain token.

Open interest: Open interest measures outstanding derivatives contracts, often reported as a notional value.
Optimistic rollup: An optimistic rollup posts transaction data and state assertions that can be challenged during a dispute period.

Perpetual futures: Perpetual futures are derivatives without a fixed expiry.
PropAMM: A proprietary automated market maker, or propAMM, uses a market maker's pricing and inventory logic to supply quotes onchain.

Relay Protocol: Relay Protocol provides cross-chain transfers and execution.
Robinhood Assets (Jersey) Limited: Robinhood Assets (Jersey) Limited is the legal issuer of Robinhood Stock Tokens.
Robinhood Chain: Robinhood Chain is an EVM-compatible Layer 2 using Arbitrum technology, Ethereum settlement and ETH gas.
Robinhood Earn: Robinhood Earn lets eligible users lend USDG through Morpho using a self-custody wallet.
Robinhood Wrapped ETH: Robinhood Wrapped ETH (WETH) is the ERC-20 representation of ETH on Robinhood Chain, recorded at 0x0Bd7D308f8E1639FAb988df18A8011f41EAcAD73.
RPC endpoint: An RPC endpoint lets wallets and applications read network state and submit transactions.
RWA: A real-world asset, or RWA, is an offchain asset represented by an onchain instrument, such as a share, bond, fund interest or commodity claim.

Sequencer: The sequencer receives and orders transactions before posting batches to Ethereum.
Sheriff V3: Sheriff V3 is a concentrated-liquidity exchange on Robinhood Chain.
Stock Token: A Robinhood Stock Token is an ERC-20 debt security with 18 decimals, issued by Robinhood Assets (Jersey) Limited and linked to a stock or ETF.

Tokenized debt security: A tokenized debt security records a debt claim onchain.
TVL: Total value locked, or TVL, measures assets counted in a protocol's or network's contracts under a data provider's methodology.

uiMultiplier(): uiMultiplier() is a Stock Token contract function that expresses share-equivalent units per raw token after corporate actions such as dividends and splits.
Uniswap (AMM): Uniswap provides automated market-making pools on Robinhood Chain for supported token pairs, including Stock Tokens, USDG and WETH.
USDG: USDG is a Paxos-issued US-dollar stablecoin with 1:1 reserve backing and distribution through the Global Dollar Network.

Withdrawal window: The withdrawal window is the challenge period before a canonical withdrawal can be confirmed on Ethereum.