Bitcoin can be a national treasure

national:

1. connected with a particular nation; shared by a whole nation
- national and local newspapers
- national and international news
- national and regional politics
- a national election
- These buildings are part of our national heritage.
- They are afraid of losing their national identity.
2. owned, controlled or paid for by the government
- a national airline/museum/theater

What nation or government are you talking about in particular, may I ask?

As opposed to the 'national,' we could speak here about the 'global' currency/pride, etc.
Given the international and distributed nature of BTC, we can call it a 'global treasure' rather than a 'national treasure,' which sounds absurd.