Methods an apparatus are described for verifying a game of chance is displayed correctly on a remote client. The verification may include storing game history information associated with a game of chance presented at a remote client. The server can provide a game outcome associated with the game of chance, and the game outcome can be presented visually on the remote client. A sample game outcome can be generated on a remote client and a user may be asked one or more questions about the sample game outcome to verify that the sample game outcome is correctly displayed on the remote client. In addition, the remote client can then generate a hash of the 1 game outcome and send the hash to the server. The server can store the client-generated hash and game history. If a dispute arises, this client-generated hash can be compared to a server-generated hash. A comparison of these hashes can be used to verify that the correct outcome was displayed on the remote client.