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0 sats \ 0 replies \ @fuji_money OP 4 Nov 2022 \ parent \ on: Fuji Money AMA bitcoin
Submarine swaps are non-custodial.
Pegin can be done trustlessly sending to federation multisig, instead for pegout currently you need cooperation with a Liquid Member (there almost 150 of them)
In future pegout could be done trustlessly too, now is a security measure
Oracles will mostly be exchanges and other price APIs, they already have free APIs to fetch price, they can simply add a signature to being able to be used as blinded oracles (ie. Exchange does not even know about a contract is in place).
We working with BFX & Blockstream Data
Yes the plan is to add an average quoroun directly on chain to avoid API bugs
Yes, in a scenarion where Liquid is not producing blocks we can migrate to other Elements based sidechains
Since the bitcoin value is volatile, the 50% extra collateral is needed to account for fast crashes to be able to sell the collateral in time
We already communicated that the minimum collateralization ratio will decrease over time as low as 110%.
We value your feedback, ideally we can have an alternative contractor version with compound interest and decrease the amount of confiscated collateral
That being said the liquidation is very important because rebalance the system. To perform timely liquidations Fuji must have capital allocated for each contract.
You can always redeem your collateral or topup before liquidation.
Liquidation can theoretically never happen in the contract lifecycle.
Fair enough. Smart contracts on Liquid (and eventually on bitcoin) are stateless and are not Turing complete.
Liquid has covenants already which allow very powerful use cases
You can deposit and withdraw from the smart contract using Lightning!
All Lightning applications are custodial services anyway that ask you to deposit/withdraw.
More trading-oriented use cases are in the making, eventually with different covenant designs such as automated lending pools.
Yes we will start working on the mobile app soon.
Fuji USD is perfect for retail use cases: with your Bitcoin wallet, you can borrow on-the-go to spend at shops, gift cards, and/or buy virtual prepaid cards.
When you borrow you pay a setup contract fee which eventually can be added on closing as well.
Also, when liquidations happen the difference between the amount of confiscated collateral and burned Fuji asset is another revenue stream.
Users can only borrow: their collateral can always be taken back and the redemption is non-interactive (ie no cooperation with Fuji is needed)
To earn interest you can eventually lend the borrowed Fuji to another party or swap for USDt and lend on HodlHodl
Having a price feed API already live with a signature of price & timestamp. If the API is also used by other users and has a reputation of being live, would be important to let us add it to our apps.
Consider that the borrower in the end is the one choosing which and how many oracles he accepts to include in the contract.
On Liquid, you can make stateless smart contracts thanks to covenants opcodes.
Fuji assets are issued on-demand when collateral is locked (and must be burned when collateral is unlocked), there is no lender in this scheme and neither a pool.
Trading stocks is more interesting for users living in the west, where capital markets and fintech is widespread, trading on regulated venues is less important than having bearer assets without KYC.
Stablecoins solves problem of volatility, capital gain taxes and trading long strategies.
- Alice and Fuji agree on parameters such as liquidation target, collateral, and amount to issue
- Alice decides to put $ 200 worth of Bitcoin to borrow 100 FUSD
- In the sam transaction there is the FUSD issuance and the funding of the contract
- Alice can close the contract to take back the BTC whenever she wants: she only needs to pay back the debt (ie. burning 100 FUSD in an OP_RETURN)
- If Alice fails to keep collateral value above $150, Fuji can perform liquidation burning 100 FUSD and confiscating the whole collateral.
Good q.
There are two topics:
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You do not borrow from a lender, but FUSD is issued on-demand atomically when L-BTC is locked in the smart contract (either Liquid transaction or via Lightning swap)
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Yes FUSDs are all equal, therefore fungible to one another.
To build trust-minimized offering that can scale globally, you need to be able to offer non-custodial services, and having a chain with covenants capabilities helps a lot.
At the moment the only alternative may be using altcoin chains or other sidechains such as RSK.
The main argument in favor of Elements (ie. Liquid) vs RSK is that is a Bitcoin Core and you are using Bitcoin tech instead of Ethereum tech like RSK