Abstract: A block chain system allows mining for new valid values in a system such as a computer game or computer-based trading card system. Instead of each new value being added to the block chain being equivalent, each new value is one of a plurality of possible choices.

Abstract: A block chain system allows mining for new valid values in a system such as a computer game or computer-based trading card system. Instead of each new value being added to the block chain being equivalent, each new value is one of a plurality of possible choices.

Abstract: A block chain system allows mining for new valid values in a system such as a computer game or computer-based trading card system. Instead of each new value being added to the block chain being equivalent, each new value is one of a plurality of possible choices.

Abstract: A block chain system allows mining for new valid values in a system such as a computer game or computer-based trading card system. Instead of each new value being added to the block chain being equivalent, each new value is one of a plurality of possible choices.

Abstract: A system in which people with different skills collaboratively work together build creative content each by contributing the type of work that he or she is best at. Four modules of the system include the specialization of contributions, in which creators make types of contributions depending on their strengths and interests, content curation and distribution for evaluating content and controlling the bundling and distribution of content, workflow/tracking that keeps an immutable history of work and allows branching, and compensation for contributors that tracks the contributions made by each creator and determines compensation based on the amount and/or perceived quality or worth of work each creator puts into the creation of content.

Abstract: A block chain system allows mining for new valid values in a system such as a computer game or computer-based trading card system. Instead of each new value being added to the block chain being equivalent, each new value is one of a plurality of possible choices.

Abstract: An online gaming website monitors indicators that a player waiting to play an online game is becoming frustrated, and generates a frustration profile for the player based on the indicators. The frustration profile is utilized to decrease the time that the player waits to play an online game, such as by changing the player's position on a queue for play of the game, or by offering an alternative game compatible with the player's gaming interests, which if selected by the player would decrease the player's waiting time.