I agree with Akito that the creator of this puzzle moved out puzzles 120, 125, and 130. I have been researching this topic for a long time, and based on my analysis, just after puzzle 120 was solved on 2023-02-27, the creator increased the prize money to a total of 1000 BTC on 2023-04-16. This seemed to be a public stunt by the creator to draw more attention to the puzzle. Then, on 2023-07-09, puzzle 125 was removed again, likely as another public stunt to generate further discussion and speculation that someone had gained the knowledge to crack ECDSA within a 3-4 month period. After that, when puzzle 66 was solved and subsequently stolen by another pseudo person (I’m unsure if this was also a public stunt), the creator quickly moved btc of puzzle 130, likely to attract even more attention.

I don’t mean to offend anyone—this is just my analysis. Everyone is entitled to their own opinion, and this is simply mine. I have no intention of offending anyone.