Tokens on the Solana blockchain that provide indirect exposure to Anthropic and OpenAI have seen a significant decline, dropping nearly 40% this week. Both companies issued warnings stating that the special purpose vehicles (SPVs) used to hold their shares are invalid due to lack of corporate board approval. This raises concerns about potential fraud, as any third-party selling these tokens may be offering investments without real value. Specifically, Anthropic's tokens fell 34% while OpenAI's dropped 39%, according to CoinGecko data. The SPVs, which were designed to hold shares on behalf of investors, have not been validated by the companies, and liquidity remains a significant issue, with only about $23 million in total assets backing an implied valuation of Anthropic at over $1.3 trillion. PreStocks, the platform behind these tokens, has not provided the promised attestation reports, leading to doubts about the ability of investors to cash out. Both companies have also named several intermediaries as unauthorized to buy or sell their shares, warning that such transactions could violate U.S. securities laws.