# Mining FAQ

Mining

## What do I harvest for AMM Liquidity mining?

Refer to our How it works section -

## How can I add or remove liquidity?

Refer to our article

## Where & when can I claim my DERIs?

DERI rewards is calculated and distributed per block based on LPs’ liquidity percentage in each pool. You can claim them by clicking on the DERI icon. Please note that you will need to pay transaction fees in order to claim your DERI reward tokens.
Regarding your unclaimed DERI tokens during the previous cross-pool consolidated mining, you can claim them all anytime at the bottom of pools page.

## Where can I claim my XVS reward?

XVS mining rewards can be claimed at the specific pool overview. You will find the "Collect" button on the pool's info tab.

## How is the APY of AMM Liquidity Mining calculated & how can I verify it?

There are three fundamental factors that influence the displayed APY of a AMM mining pool. These are:
1. 1.
Both a rising and dropping value of DERI against USD, influence the displayed APY
2. 2.
The APY is generally dynamic, fundamentally influenced by how popular the pool is, the APY increases when liquidity decreases and decreases when liquidity increases.
3. 3.
Mining on Deri Protocol is based on the S2F principle (similar to Bitcoin), the number of total DERI's mined per week is decreasing over time. Please note that the mining phase is going to take decades! For more information kindly check out our Tokenomics article
The APY of liquidity mining only includes the yield of DERI award, whereas the profit of the base token is not included. To verify the displayed APY of liquidity mining for a certain pool, you can refer to the following formula:
1. 1.
At t0, record "My Harvest in Current Epoch" as H0;
2. 2.
At t1, record "My Harvest in Current Epoch" as H1;
3. 3.
Calculate
$APY=\frac{P_{DERI}(H_1-H_0)Y}{(t_1-t_0)L}$
, where
$P_{DERI}$
is the price of DERI, Y is one year's time, L is your liquidity contribution.
Please wait to have (t1-t0) long enough (e.g. 30 min) so that the estimation is close.

## How to withdraw my liquidity in the retired pools?

The retired pools (including the premining pools, trading pools of V1, and pools of V2) are removed from the main pages. You can find them here to withdraw your liquidity.

## What are the smart contract addresses of Deri Liquidity Token (DLT)?

The DLT Token is available & active on the following networks with the following smart contract addresses: BSC: 0xa487bf43cf3b10dffc97a9a744cbb7036965d3b9

## Is DEX Liquidity Mining on SushiSwap, SushiSwap Onsen & PancakeSwap Deri risk-free?

No, it is not. Liquidity mining on SushiSwap, SushiSwap Onsen or PancakeSwap are subject to the risk of impermanent loss. Any resulting permanent loss caused by removing the liquidity is in the user's responsibility. Use only the listed pools on our website to add liquidity. Adding liquidity on empty pools directly over SushiSwap or PancakeSwap can cause a huge or total loss. Any resulting permanent loss caused by removing the liquidity is in the user's responsibility

## Is the AMM Liquidity Mining on Deri pools risk-free?

No, it isn't. In general, it is essential to comprehend that liquidity providers are the counterparts of traders on Deri Protocol. When traders realize profits, they do so at the expense of liquidity provider's provided liquidity. When traders realize losses or are liquidated, liquidity providers realize profits at the expense of traders. Therefore a market risk exists for Liquidity Provider!
However, please note that such market risk is different from the impermanent loss of spot exchanges (e.g. Uniswap or Sushiswap). First of all, the fact it is called "risk", instead of "loss", indicates that the mining PnL/LSV result could be negative but also positive (For more details, check out: ). Secondly, the probability of a negative result (a loss) on Deri liquidity mining pools is much smaller than that of typical spot exchanges due to the protection by arbitrageurs, although a certain market risk remains. You might think of liquidity mining on Deri as investing in a low-risk fund with potentially very high profit, whereas that risk-free liquidity mining is like depositing your money into a bank saving account.
Please refer to our whitepaper for further details regarding the protection by the arbitrage mechanism.

## Since AMM liquidity mining is not risk-free, can I hedge the market risk of my liquidity contribution?

Yes, it is possible. Actually, it's quite convenient for sophisticated liquidity providers to do so: Liquidity miners merely need to hedge the portion of the risk exposure associated with their liquidity contribution.
For example, if you contribute 1% of the pool TVL and currently, the risk exposure (i.e. the net position) of the pool is 10 BTC and -1000 ETH, then you just need to hedge the part of the risk exposure for your part, i.e. 0.1BTC and -10ETH.