Porn, or Pornography, is the display of sexual material for the purpose of sexual arousal. Porn is distributed through books, magazines, photos, videos, writing and sounds. Porn is a part of human civilization since prehistoric times. However, the ways of consuming porn and the time spent on it has changed significantly in the modern world. Porn sites accumulate a large audience, who spend a considerable amount of time on them. Some companies use distributors of porn for cryptocurrency marketing. Porn sites help capture the attention of young men, who are the most active in the blockchain community. Blockchain porn sites may become the next step of current resources being non-censorable and transparent in terms of advertisements. The purchase of porn with Bitcoin may be a way to hide transactions for additional privacy. However, such privacy may lead to the purchase of prohibited types of porn and may become a governmental concern.