Zero-knowledge predictions market

A system for trading outcomes of events, the system comprising:

• a memory;
• a processor communicatively coupled to the memory, where the processor is configured to perform
• receiving, from a user using a zero-knowledge protocol to maintain privacy of the user, each of
• a unique token associated with the user,
• a prediction for an outcome of an event, and
• a pledged quantity associated with the prediction,
• confirming the unique token is associated with the user;
• in response to confirming the unique token is associated with the user, updating the pledge quantity tied to the prediction for the user;
• and
• updating a pooled prediction for the outcome using zero-knowledge verifiable computing.

A computer program product for trading outcomes of events comprising a computer readable storage medium having computer readable program code embodied therewith, the computer readable program code configured to perform:

• receiving, from a user using a zero-knowledge protocol to ensure privacy of the user, a rating with a unique token associated with the user, and identifier of a party to be rated;
• confirming the unique token is associated with the user;
• in response to confirming the unique token is associated with the user, updating a rating of the party using zero-knowledge verifiable computing;
• and
• in response to the updating of the rating being successful, sending to the user an acknowledgment using the zero-knowledge protocol.