Some articles:

- https://www.cryptocoinsnews.com/opair-projects-cryptocurrency-ico-functional-programming-decentralized-debit-cards-unique-blockchain-platform/
- https://www.ukinvestornetwork.com/opair-projects-cryptocurrency-ico-functional-programming-decentralized-debit-cards-and-a-unique-blockchain-platform/
- http://finance.yahoo.com/news/opair-projects-cryptocurrency-ico-functional-172000207.html