MetaX and ConsenSys Announce adToken Sale June 26, 2017

Utility Token For Ethereum Blockchain To Drive Open Technology For Digital Advertising. adChain White Paper Available For Download

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MetaX is a Blockchain technology company driving development and adoption of open platforms for digital advertising. MetaX and ConsenSys have jointly created adChain, a Blockchain-based open protocol that’s programmable to the needs of the digital advertising industry. MetaX plans to launch a token sale for this platform June 26th.

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The utility tokens grant holders the right to participate in the adChain platform. The sale will fund further product development and innovation to help streamline the $175 billion digital advertising supply chain that’s riddled with fraud and transparency issues.

“It’s been nearly two years of ideating and developing adChain to serve as a foundation for MetaX, and other developers, to build out Blockchain-aware solutions for the digital advertising industry. The June 26th sale is for adToken (ADT), a utility-based token used for participating in the adChain protocol,” said Ken Brook, co-founder and CEO of MetaX. “We will be applying the proceeds to the continued build-out of the adChain protocol and development of related decentralized applications – a core component of bringing this big vision to life.”

MetaX believes that to solve the digital advertising supply chain transparency issue it’s crucial to move away from dependencies on closed systems. The digital advertising ecosystem must instead embrace the development and adoption of a decentralized approach and truly open technology. Walled-gardens are largely to blame for the state of the industry and current initiatives are still wholly focused on creating more closed systems.

MetaX’s philosophy to build toward decentralization and develop on open platforms aligns squarely with the ethos behind Blockchain, and especially Ethereum.

“adChain offers a potential solution to address many of the fundamental flaws in digital advertising’s broken state. ConsenSys is extremely proud of the contribution we have made to the adChain protocol and look forward to continue our close collaboration alongside MetaX. We are genuinely excited about the utility of adToken and the transformative design patterns because open protocols like adChain represent a forward leap towards widespread Ethereum adoption,” said Mark D’Agostino, managing partner, ConsenSys Enterprise.

adChain is an open protocol on public Ethereum that allows for the building of decentralized and ad-centric applications for the $175 billion digital advertising ecosystem. The first solution of adChain is the adChain Registry, a smart contract on the Ethereum Blockchain which stores domain names accredited as non-fraudulent by ADT holders. ADT holders will access a token-weighted voting mechanism through a user interface to vote on whether a publisher domain is fraudulent or non-fraudulent.

dApps (decentralized applications) utilizing the adChain protocol will enable advertisers and publishers to run campaigns that leverage the power of Ethereum, while maintaining the familiar user experience of legacy tools. These dApps will drive adoption across the thousands of advertisers, publishers and technology providers, in the digital advertising ecosystem.

Visit for more details on the adToken (ADT) mechanism and to download the newly released adChain white paper.

MetaX is a Los Angeles-based, Blockchain technology company driving development and adoption of open platforms for digital advertising. MetaX uses adChain to power ad-centric applications that allow the digital advertising supply chain to coordinate in a scalable, trustworthy and secure way. To sign up for company updates, please visit:

ConsenSys is a venture production studio and custom software development consultancy building decentralized applications (dApps), enterprise solutions and developer tools for the Ethereum ecosystem. Powered by smart contracts and secured through encryption, our applications provide the benefits of transparency, auditability, and immutability that are unique to Blockchain-based solutions. For more information please go to

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About Richard Kastelein

Founder and publisher of industry publication Blockchain News (EST 2015), a partner at ICO services collective Token.Agency ($750m+ and 90+ ICOs and STOs), director of education company Blockchain Partners (Oracle Partner) – Vancouver native Richard Kastelein is an award-winning publisher, innovation executive and entrepreneur. He sits on the advisory boards of some two dozen Blockchain startups and has written over 1500 articles on Blockchain technology and startups at Blockchain News and has also published pioneering articles on ICOs in Harvard Business Review and Venturebeat. Irish Tech News put him in the top 10 Token Architects in Europe.

Kastelein has an Ad Honorem - Honorary Ph.D. and is Chair Professor of Blockchain at China's first Blockchain University in Nanchang at the Jiangxi Ahead Institute of Software and Technology. In 2018 he was invited to and attended University of Oxford's Saïd Business School for Business Automation 4.0 programme.  Over a half a decade experience judging and rewarding some 1000+ innovation projects as an EU expert for the European Commission's SME Instrument programme as a startup assessor and as a startup judge for the UK government's Innovate UK division.

Kastelein has spoken (keynotes & panels) on Blockchain technology in Amsterdam, Antwerp, Barcelona, Beijing, Brussels, Bucharest, Dubai, Eindhoven, Gdansk, Groningen, the Hague, Helsinki, London (5x), Manchester, Minsk, Nairobi, Nanchang, Prague, San Mateo, San Francisco, Santa Clara (2x), Shanghai, Singapore (3x), Tel Aviv, Utrecht, Venice, Visakhapatnam, Zwolle and Zurich.

He is a Canadian (Dutch/Irish/English/Métis) whose writing career has ranged from the Canadian Native Press (Arctic) to the Caribbean & Europe. He's written occasionally for Harvard Business Review, Wired, Venturebeat, The Guardian and, and his work and ideas have been translated into Dutch, Greek, Polish, German and French. A journalist by trade, an entrepreneur and adventurer at heart, Kastelein's professional career has ranged from political publishing to TV technology, boatbuilding to judging startups, skippering yachts to marketing and more as he's travelled for nearly 30 years as a Canadian expatriate living around the world. In his 20s, he sailed around the world on small yachts and wrote a series of travel articles called, 'The Hitchhiker's Guide to the Seas' travelling by hitching rides on yachts (1989) in major travel and yachting publications. He currently lives in Groningen, Netherlands where he's raising three teenage daughters with his wife and sailing partner, Wieke Beenen.

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