[ARCHIVED] Mantle x Redacted strategic collaboration

Optimizing utility for Mantle blockspace with Redacted


The demand for innovative solutions that enrich the user experience in DeFi is accelerating. Notably, a challenge facing users is the lack of liquidity and flexibility in staking Ether. Additionally, the lack of competition in the liquid staking vertical has led to monopolization, which poses its own set of risks to both Ethereum and Mantle.

In response to these challenges, Redacted has built a new type of Liquid Staking Token, called Pirex ETH or pxETH. We’re also planning to launch DINERO, which is an overcollateralized stablecoin backed by pxETH that will have other direct utilities on-chain. Combined, the Dinero Protocol will offer unprecedented utility for staked Ethereum.


The Redacted Cartel is the DAO building out the Redacted ecosystem. The DAO consists of developers, writers, researchers, and more who are all focused on building out and extending the reach of DeFi. The Redacted ecosystem is a product suite of smart contracts empowering on-chain liquidity, governance, and cash flow for DeFi protocols. We’ve built two products inline with this mission: Hidden Hand and Pirex - and now, Dinero.

There are some unique opportunities that are opened up when an L2 works with an aligned ETH staking solution, here we present the benefits of staking ETH with Dinero and some of the possibilities of what a partnership between Redacted and Mantle could involve.


Redacted has built a new type of Liquid Staking Token, called Pirex ETH or pxETH. pxETH is designed to bridge Ethereum staking and DeFi in a way that allows users to make optimal use of their ETH holdings. pxETH is built on top of Redacted DAO’s Pirex platform and forms an integral part of the Dinero protocol, a protocol which aims to integrate ETH staking and Ethereum network validation, block proposal and building into a single synergistic ecosystem comprising pxETH, the Redacted Relayer, and the DINERO stablecoin. pxETH provides users with a liquid and fungible tokenized staked ETH which benefits from Ethereum staking rewards and other revenue forms such as MEV tips and block rewards. Future pxETH yield and pxETH withdrawals can be tokenized and used within DeFi.

Our hope, with pxETH and Dinero, is to deliver a holistic solution that combines several useful and capital efficient tools under a singular easy-to-use protocol, while contributing to true decentralization of the liquid staking landscape.

Integration and Execution

1. Mantle stakes 50,000 ETH into pxETH to bootstrap DEX liquidity and integrations across Mantle, increase the frequency when we land a block, as well as earn more fees on each block landed.
2. Establish pxETH pairings with Mantle’s LST.
3. Mantle opts in to sending batch transactions via Redacted’s private mempool.

MEV protection/kickback

pxETH will validate a private mempool, and bundles that we want shielded from MEV can be executed at the top or bottom of every block when a block is produced by pxETH.

For L2s, this means that at block production, we would be able to deliver the bundle directly on-chain, with additional possibility to add transactions on either the L1 or L2 side to capture MEV (most likely arbitrage between L1 dexes and L2 dexes) and direct that value back towards the chain and its users.

Liquidity Syncing

Another possibility that is offered when we land a block, is that we can atomically execute transactions on both the L1 and L2 as if they were the same chain. Meaning a L2 user can submit a transaction to buy tokens which only have liquidity on a L1 pool, and at the next block produced, we atomically send the users funds from the L2 to the L1, make the swap, and deliver the desired tokens back to the L2.

This means that even without really deep pools on the L2, the traders on L2 could get access to the entire liquidity present on the L1 (albeit with a bit more time delay).

It’s also possible to do liquidity syncing across L2s that share the same block building stack or messaging layer (e.g. OP superchains, Base rollups)

Stablecoin gas with DINERO

With meta transactions, it’ll be possible to do gas payments in any token that can be swapped on-chain back to ETH, and there is some appeal to users who wish to use the chains without exposure to ETH price fluctuations. We envision DINERO to be the best decentralized on-chain stablecoin designed specifically for the purpose of paying transaction fees.

Our plans include seamless swaps between DINERO <> pxETH <> ETH so that users are never overpaying for gas costs, as well as on/off-ramping solutions for DINERO to make it as convenient as possible for users.


ETH can be withdrawn from the Dinero protocol in exchange for pxETH via two mechanisms: (1) Normal pxETH withdrawals; and (2) Priority pxETH withdrawals.

Under Normal pxETH withdrawals:

  • if the amount of unstaked ETH is greater than the ETH buffer upper limit, pxETH can be redeemed for this excess ETH. However the excess amount is likely to be less than 32 ETH, given the automatic process of validator creation.
  • if there is no excess ETH available, validators will be spun down to provide ETH for withdrawal. In this case the ETH will be exchangeable for upxETH and RFN 1155 NFTs, with the upxETH being redeemable for ETH once the relevant ETH has been unstaked. The time for this ETH to become available depends on the length of the unstaking queue on the Ethereum network, if any.

Under Priority pxETH withdrawals, when the ETH buffer is greater than the ETH buffer lower limit, pxETH can be redeemed for ETH in the buffer immediately. This style of withdrawal allows for quicker withdrawals in the event that there is an unstaking queue for ETH on the Ethereum Network. A withdrawal fee is levied on withdrawals, with a larger fee for Priority withdrawals, reflecting the greater ease of withdrawal. These withdrawal mechanisms allow for ETH:pxETH peg maintenance and for greater liquidity, especially during times of market volatility.


Besides contributing to true decentralization of the liquid staking ecosystem, pxETH offers several advantages over existing LSTs. The ability to provide a fixed yield, increased liquidity, and improved scalability, while preserving optionality for DeFi interaction. Combined with DINERO, Mantle will achieve complete capital efficiency for both their own LST and ETH reserves by staking with pxETH, while effectively furthering staked ETH decentralization. The unique design of pxETH offers a new approach to risk management in the DeFi space and potentially transformative stablecoin and yield generation strategies. Aggregators can use pxETH in their yield farming strategies, and borrowers and lenders in the Mantle ecosystem can utilize pxETH to their benefit.

Mantle allocating into pxETH will attract a larger audience to the platform, as well as to allow for more composable and efficient DeFi use cases.

Relevant Links



Mantle & Redacted can build a symbiotic relationship.
With the deposit from Mantle, Mantle will get:

  • Yields for ETH in the treasury with liquidity
  • Premium block space on Ethereum with lots of potential benefits, especially for an L2
  • Liquidity driver (Hiddenhand) to nourish the Mantle ecosystem
  • More defi projects onboard Mantle through Redacted’s network

Redacted will get:

  • Bootstrap the ecosystem centered around DINERO & pxETH

Redacted community member here (Agni user as well) - I just wanted to chime in and express my support around this proposal. Obviously this would be great for pxETH bootstrapping, however the possibilities for Mantle are equally as exciting.

Unique implementations around liquidity syncing would be amazing. An L2 being able to harness (even with limitations) L1 liquidity is the kind of efficiency that makes this space so innovative and exciting.


@0xterence In keeping with the guidelines of the forum , this discussion will be archived for the following reasons:

  • The discussion has not received a comment for over two weeks.
  • The post has not yet received significant support from delegates, large token holders, or core development teams.