嘉楠科技(CAN.O)：比特币被指定为公司主要的长期储备资产。

Group 1 - The core viewpoint of the article is that Canaan Inc. has designated Bitcoin as its primary long-term reserve asset [1] Group 2 - Canaan Inc. is focusing on Bitcoin as a strategic asset, indicating a shift in its investment strategy [1] - This decision reflects a broader trend in the industry where companies are increasingly adopting cryptocurrencies as part of their asset management [1]