Proposal - Migrate Uniswap V2 Liquidity Mining Program to SushiSwap


Migrate the Tornado Cash liquidity mining program from Uniswap V2 to SushiSwap.


TORN currently has both SushiSwap and Uniswap V2 for its liquidity mining program ($13.8m TVL on Uniswap V2 vs. $650k on SushiSwap for TORN/ETH) but the UX hasn’t been updated for Uniswap V2 due to Uniswap V3 which can be confusing for newcomers to liquidity provision. SushiSwap is multi-chain and has an ongoing suite of products (lending, borrowing, farming, launchpad, etc.) rather than just simply being a AMM DEX. The TORN liquidity mining program is eligible for double rewards in the form of SUSHI + TORN which eases the burden of impermanent loss. The core team has agreed to match the length of the existing liquidity mining program. SushiSwap also has the upcoming release of Shoyu (NFT platform) and Trident (AMM) in the coming months.

Liquidity Mining Benefits:

SushiSwap distributed accrued protocol revenue from 0.3% protocol trading fees between LPs (0.25%) and xSUSHI token holders (0.05%). $xSUSHI is received after depositing SUSHI into a pool called SushiBar; a way to distribute a portion of accrued revenue to token holders. LPs in Onsen liquidity mining program are also rewarded in the SushiSwap native token SUSHI.

Being multi-chain with a presence on Polygon, BSC, Fantom, xDai, Harmony, and more lays the groundwork to easily migrate TORN to other chains from a single location.

Double rewards by integrating with MasterChef V2 enables projects to add their own incentives on top of SUSHI rewards. These rewards are able to be configured as a multiple of SUSHI rewards or another standard like block hash and block time stamp. MasterChef V2 brings cheaper gas than MasterChef V1 since storage slots on Ethereum are optimized from three to one total slots. Rewards are all now claimed on-demand so the user can choose when and how to harvest their rewards. Double rewards helps ease the burden of impermanent loss for TORN and decreases the price impact/slippage of individual purchases making the process more efficient overall.

  • Kashi & BentoBox: SushiSwap easily allows lending, borrowing, and margin trading through Kashi which is built on top of BentoBox. BentoBox serves as the vault that securely stores tokens and generates yield from flash loans and strategies for protocols built on top of it. BentoBox holds the tokens while Kashi utilizes the assets stored for lending, borrowing, and margin trading. This could allow TORN users to earn interest lending out their assets to margin traders while earning rewards from liquidity provision or farming.

  • Trident: Launching in the coming months, the anticipated update to SushiSwap can be broken into three portions: new BentoBox strategies, expansion of pool options, and a new routing engine. Trident grows the expansion of pool options to four pool types. The first being the constant product pool which is made up of an equal monetary value of each. The second type is the hybrid pool which allows users to swap assets with a reduced price impact. Users can include up to 32 assets in a single pool. The third is the concentrated liquidity pool which asks users to specify the token asset’s price range to add liquidity to. This allows providers to more narrowly scope their liquidity provisioning to maximize how much is earned from fees across SushiSwap. The last pool type is a weighted pool which allows different weight types with up to eight tokens in a single pool. Migrating the liquidity mining program will expose TORN to a wide variety of new users and create the ability to route trades through a variety of pool types.

Housekeeping Notes:

TORN liquidity provision will be eligible for double rewards meaning both the existing SUSHI rewards (Currently 101 SUSHI per day) and TORN can be earned potentially increasing the existing rewarded amount from the Uniswap V2 liquidity mining program.

We welcome feedback from the community on this proposal.


The current liquidity mining program is of 6 months length in total and will end in October. So it is the good moment to start the discussion about extending it. If we were to extend it, we could do it on Sushi swap.
I personally think that Sushi and Uni are the same. 101 Sushi/day is nice but it’s tiny. Also keep in mind that LP are getting 15% less LP rewards in Sushi. But if the community wants Sushi, fine with me.

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