Rocket Pool¶

Overview¶

Rocket Pool is the leading decentralized liquid staking protocol on Ethereum. It aims to solve the high barrier to entry for running a solo validator node (Solo Staking), while providing staking rewards for users who do not want to lock up their ETH.

Compared to other liquid staking solutions such as Lido, Rocket Pool's most notable feature is its permissionless node operation mechanism. Anyone who meets the minimum ETH and RPL (protocol token) collateral requirements can become a Node Operator and run validator nodes for the protocol.

Rocket Pool launched on mainnet in late 2021 and has been committed to preserving Ethereum's decentralization and censorship resistance properties.

Core Mechanisms and Principles¶

Rocket Pool's architecture is elegantly designed to align the interests of regular stakers and node operators.

1. rETH Token¶

rETH is Rocket Pool's liquid staking token (LST). - Value Accumulation: Unlike Lido's stETH (which uses a rebase mechanism where the quantity increases), rETH uses an appreciation model. The quantity of rETH remains constant, but its exchange rate to ETH continuously rises as staking rewards accumulate. - Tax Advantages: In certain tax jurisdictions, the appreciation model may offer tax advantages over the rebase model (being treated as capital gains rather than interest income). - Collateral Protection: The value of rETH is backed by all the ETH in the protocol, with the RPL collateral posted by node operators providing an additional insurance buffer.

2. Minipools¶

To lower the barrier to running a node, Rocket Pool introduced the "Minipool" concept. - Ethereum Requirements: Traditional Solo Staking requires 32 ETH. In Rocket Pool, node operators only need to provide 8 ETH or 16 ETH (depending on the configuration, LEB8 or LEB16). - Fund Matching: The protocol draws the remaining 24 ETH or 16 ETH from the deposit pool (ETH deposited by rETH users) and combines it with the node operator's funds to reach 32 ETH and launch a validator node. - Commission: In addition to earning staking rewards on their own portion of ETH, node operators also take a percentage (approximately 15%) from the matched ETH's earnings as commission, resulting in a higher yield than Solo Staking.

3. RPL Token and Insurance Mechanism¶

RPL is Rocket Pool's governance and utility token. - Insurance Bond: When creating a minipool, node operators must stake a certain value of RPL (at least 10% of the value of their borrowed ETH). This RPL serves as "insurance" — if a node is slashed due to going offline or malicious behavior, the operator's staked ETH is deducted first, and if insufficient, the RPL is deducted, thereby protecting rETH holders' interests. - RPL Rewards: To incentivize operators to stake RPL, the protocol distributes RPL inflation rewards to operators who meet the collateral threshold.

Key Features¶

Decentralization: Node operators do not need to be whitelisted — anyone can join, which stands in stark contrast to protocols that rely on a curated set of nodes.
Low Barrier: Reduces the capital threshold for running a node from 32 ETH to 8 ETH.
Capital Efficiency: For node operators, the leverage effect (using protocol funds) increases the ETH-denominated yield.
Security: Over-collateralized RPL provides an additional layer of security.

LSD / LST: Liquid Staking Derivatives / Tokens.
Solo Staking: Running a validator node independently, without an intermediary protocol.
DVT (Distributed Validator Technology): A technology Rocket Pool is exploring to integrate, further reducing single point of failure risk.