Not really. Let's quote Investopedia;
Regardless of the technology used in the Ponzi scheme, most share similar characteristics:
- 1) A guaranteed promise of high returns with little risk
- 2) A consistent flow of returns regardless of market conditions
- 3) Investments that have not been registered with the Securities and Exchange Commission (SEC)
- 4) Investment strategies that are secret or described as too complex to explain
- 5) Clients not allowed to view official paperwork for their investment
- 6) Clients facing difficulties removing their money
A Ponzi scheme is an investment scam that pays early investors with money taken from later investors to create an illusion of big profits.
www.investopedia.com
Number 1 is obviously false, because everyone knows Bitcoin is risky
Number 2 is obviously false, because there is no constant flow of returns. The market determines the returns, which is why people regularly lose money inn it
Number 3 is true, BUT, Bitcoin in particular is not a security, and doesn't need to be registered as such.
Number 4 is false.
Number 5 is obviously false, since the Bitcoin ledger is open for everyone to take a look at
Number 6 is also false, since you have complete agency over your Bitcoin, unless you yourself chose to delegate it to a third party like an exchange.