"Buffet stock"? Are they talking about starting an asset pegged to BRKA?
Yes, dacx.com will issue real stock backed assets for Chinese investors. The stocks include BRAK, AAPL, TSLA， GOOG etc.
Funds are collected through crowd funding, i.e. by selling user issued assets (UIA), Each share of the UIA represents a certain portion of the real stock.
UIA can be traded in on-chain or off-chain market just like any other coins.
This is a great step that makes it much easier for Chinese investors to invest on US stocks.