Stanislav Matveev

Vixen Group’s award-winning studios feature beautiful women in exotic locations around the globe. Its network of branded websites have over 30 million visitors every month, and its innovative studios—Vixen, Blacked, and Tushy—have won over 100 awards. With over five million followers on Instagram, the company has been credited for “changing the culture’s perception of porn” and has been profiled in Rolling Stone, Forbes, BuzzFeed, Vice, GQ France, Men’s Health, The Daily Beast, and on the BBC.

Blacked is an American pornographic film studio that produces films in the genre of interracial pornography. One of the brands of the Vixen Media Group media company.

Superfluid is on a mission to transform the way assets move in decentralized finance.

Superfluid is a new token standard, with the power to describe cashflows, and execute them automatically on chain over time in a non-interactive way.

Blocknative builds infrastructure to monitor and manage the complexity of transacting on public blockchain networks. Learn more about how we are shaping the future of DeFi, NFTs, and more.

Blocknative builds infrastructure to monitor and manage the complexity of the mempool — making it available to every builder and trader. Our goal is to make working with mempool data as easy and accessible as working with every other aspect of Web3.

Blocknative is an active participant in the blockchain ecosystem supporting leading projects and engaging with customers to assure smooth and reliable blockchain transaction processing.

It's time for the physical to meet the digital.

We're changing the way the world sees physical collectibles and what people can do with them. One asset at a time.

Our Mission

To be the most trusted platform for bridging ownership and authenticity of tangible assets across physical and digital worlds.

As humanity lives increasingly virtual lives, it becomes more and more important to have a source of truth that connects our digital reality with our physical one.

By offering state-of-the-art authentication, storage, and marketplace services, 4K is enabling humanity to transact with more trust, more transparency, and less friction.