A Chinese man, name unknown, recently used the blockchain to prove his innocence in a case of copyright theft at the Chinese Internet Court (CIC), Hangzhou. This case has been said to be remarkable for both the court and the blockchain as this will be the first time such technology has been used in a law court and also its usage means a lot for the advancement of blockchain technology, not only in China but the world at large.
unfortunately, different courts have different opinions on bitcoin, especially it is different in different countries. China as a whole is also uncertain and there is no legal position not yet countries-owned.