1.Why to participate in FIS Staking?

rFIS could bring the following benefits for FIS holders:
1) Obtain an expected annualized 15% to 20% reward of FIS staking by holding rFIS.
2) Enjoy great liquidity without the need to unbond staked FIS. rFIS can be traded on Ethereum DEX or lending protocols once you get rFIS.At present, we have set up rFIS/ETH trading pair in Uniswap.
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3) Much lower barriers to stake FIS. The staker does not need to learn the rules of NPoS nomination and how to maximize the best staking rewards any more. Now stakers can easily stake FIS through a few simple steps of rFIS products, which will help stakers to maximize the best rewards automatically.
4) Security — rFIS has passed the security audit conducted by top blockchain security team PeckShield. Audit report address .

2.what's the difference between rFIS token and FIS token?

rFIS token is a synthetic bond-like asset token and can be traded immediately without the need to wait for the 14 days of unbonding. rFIS represents your staked FIS funds plus earned staking rewards.
The differences between rFIS token and FIS token is demonstrated in the picture below:

3.What's the contract address of ERC20 rFIS?

ERC20 rFIS contract address: 0xc82eb6dea0c93edb8b697b89ad1b13d19469d635
ERC20 FIS contract address: 0xef3a930e1ffffacd2fc13434ac81bd278b0ecc8d

4.How to mint ERC-20 rFIS?

You could use rBridge to swap native rFIS to ERC-20 rFIS.

5.How to check the current rFIS total issuance?

You could check it in StaFi apps:
For example: If the number is 429,326,375,602,600,400, the rFIS actual amount is 429326.
Please note: the rBalances showed below is multipied by 10 to the power of 12.

6.Which wallets support the Staking of FIS by connecting to the StaFi rProduct?

Currently, only Polkadotjs extension supports that.

7.How to obtain rFIS?

After Staking FIS, StaFi will automatically send rFIS to users, and the quantity will be calculated according to the current exchange rate. The user's staking principal and corresponding staking rewards will be anchored through rFIS.

8.How to stake FIS?

A guide for stakers in the testnet is provided here: Staker Guide

9.How to calculate the exchange rate of rFIS?

The calculation method can be found in rFIS Solution: rFIS Solution
The exchange rate of rFIS will update every 6 hours.

10. What are the circulation scenarios of rFIS in the future?

1) When rFIS products are launched, StaFi will establish rFIS/FIS trading pairs on DEX such as Uniswap and Balancer, and will also incentivize liquidity providers through FIS rewards.
2) StaFi has reached cooperation with some centralized exchanges that will also facilitate the trading of rFIS. That will help the circulation of rFIS in multiple centralized exchanges.
3) StaFi will not only support the circulation of rFIS on Ethereum, but also allow rFIS to be utilized in Polkadot and the Cosmos ecosystems through our cross-chain bridge services.
4) In addition to trading on CEX and DEX, rFIS can also be utilized in DeFi protocols, either used as collateral or being lent out to earn additional interests.

11. Has rFIS product been audited?

Yes, rFIS has passed the security audit conducted by top blockchain security team PeckShield. The contract audit report address is:
When a user stakes FIS, StaFi will automatically mint rFIS for the user, which is commission-free.
When the Staking succeeds, the validator will charge 10% of the staking rewards as a commission.
When a user redeems FIS, the initial redemption fee is 0.2% of the redeemed FIS. The detailed calculation method can be found in the rToken white paper:rToken paper

13.How to check the information of total current nominated OVs in rFIS contract?

The rFIS pool contract address is :33DgUpB4AoR3Lnuj8wUNoLdxaXa7ffZnoNNJCuZe7ozxD4NC, so you could check the information of total current nominated OVs in StaFi explorer: