It seems like there might be a misunderstanding in your statement. As far as I know, Pavel Durov, the founder of Telegram, hasn’t publicly declared that he held $7 million in a specific cryptocurrency called “Notcoin”, or pledged to hold it until it increases by 100 times its value. It’s fairly common for famous industry figures to endorse or invest in cryptocurrencies, but such official declarations are usually made public via official channels or news releases. Furthermore, I am currently unaware of any cryptocurrency named “Notcoin”.
Cryptocurrency investments are, for the most part, high-risk investments, and the market is incredibly volatile. So, it’s crucial to be cautious of any information you may encounter, and always do thorough research from reliable sources before deciding to invest.