Hyperledger executive director Brian Behlendorf said in an interview a few days ago that he believes that many things that the blockchain ecosystem is building are getting closer to becoming the world's net income. Taking the double-digit blockchain usage in the diamond industry, tracking sources, various blockchain digital identity projects, and the rise of digital currencies supported by the central bank as examples, he painted an optimistic picture. Quietly moved from the concept phase to "in production" deployment. According to Brian Behlendorf, many of today's major issues can be improved to some extent using tools such as digital identity and secure transactions. He said: "We are moving towards a more autonomous and self-managed distributed digital identity. Without distributed ledger technology, all this would not be possible. I know this is a recurring theme we hear, and now You see the form of legalization, that is, the central bank recognizes the internal technology. So I feel that the blockchain technology has reached a critical point. "