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Here's where a stablecoins comes in. Now, presume he sells $1,000 worth of BTC for a stablecoin that I issue. The stablecoin is $1. Now assume the price of BTC drops by 50%.
That means, he can buy 50% more satoshis with the same $1,000, but since I don't have any BTC reserves, how can guarantee the "stableness" of the coin?
Are there any solutions to this such as offshoring this a decentralized exchange?
Thanks!
Ideally, this would only work if you've bitcoin reserves to backup the stable coin assets. Let's say things happen like in your example (bitcoin dumping 50% when the user already converted $1000 worth before the dump). If he decides to rebuy btc, that means he would have 50% more bitcoin so you should have reserves in place otherwise, it won't make much sense to offer such services inside of a wallet but could be a welcomed feature if you get it working since currently, one can only use stable coins via centralized exchanges.