Market Creation Guidelines

• Market outcomes must be binary (resolvable via yes/no answers)

• A Market must contain a question and corresponding description which is written in English using precise language

• Market descriptions must contain rules specifying the circumstances under which a market is intended to be resolved

• Markets must be resolvable with credible resolution sources that are broadly accessible and reliable (eg - publicly available blockchain data, credible weather sources, credible news desks, official sports league websites, etc)

• Markets cannot be easily manipulatable (eg - based on trivially inflatable metrics like social media follower count)

• Markets must revolve around a clear event or have a specific cut off time (NO indefinitely running markets, eg - “will eth hit all time high one day?”)

• Markets cannot contain any obvious ambiguities

• Market descriptions that do not specify whether the market is to be evaluated and resolved in the “spirit” of the event, will be strictly resolved based on the correctness of language in the market question/description in relation to the outcome from sited sources.

• If the existence of a market can influence the outcome, a discretionary open interest cap should be implemented by the market creator to deter this potential. E.g.) A prediction market for a local small town election could tempt a candidate to drop out if it gets too big because there isn’t much riding on the election