In a gloomy turn of events for the blockchain industry, Hashdex has filed for the Hashdex Nasdaq Crypto Index US ETF, which directly owns spot bitcoin and ether. This move comes amidst a growing wave of regulatory scrutiny worldwide and raises concerns about the future of the sector.

The filing indicates a potential shift in the industry dynamics, as it could lead to increased oversight and regulation. This could potentially stifle innovation and growth in the sector.

Moreover, the involvement of a major exchange like Nasdaq in the crypto space could lead to a further consolidation of power in the hands of a few, undermining the decentralization principle that underpins blockchain technology.

The move also raises questions about the future of crypto exchanges. If traditional financial institutions start offering crypto-related products, it could potentially threaten the existence of specialized crypto exchanges.

In conclusion, while the Hashdex filing may seem like a positive development on the surface, it could have far-reaching implications for the blockchain industry that are cause for concern.