On-chain investigator ZachXBT published an article on the X platform stating that Spartans co-founder Gurhan Kiziloz may be the mastermind behind Blockdag Network, a project that raised over $300 million from retail investors through social media advertising and has been accused of making unrealistic promises of returns and misleading partnership promotions. ZachXBT claims that Blockdag's token sale has been ongoing for over two years, with pre-sale funds being gradually monetized through Middle Eastern over-the-counter (OTC) trading. Gurhan Kiziloz is alleged to have engaged in extravagant spending during this period, including luxury cars, real estate, and other luxury goods. The article also alleges extensive paid public relations activities by related individuals. ZachXBT further claims that as early as October 2025, it was revealed that Blockdag's management was a "nominal head," with Gurhan Kiziloz as the actual controller, a position he subsequently publicly acknowledged. ZachXBT states that he has received reports of financial losses from at least 10 to 15 victims and warns the market to remain highly vigilant regarding projects associated with Gurhan Kiziloz.