Abstract: A lottery transaction processing method is provided and includes receiving a lottery play request by a lottery play generation processor. The method further includes generating play information including a unique play serial number, and a play random number key, by the play generation processor, generating a play digital signature as a function of the play information and the play random number key by the play generation processor, transmitting the play information and the play digital signature, but not the play random number key, over a network to a gaming system server for storage by the gaming system server, and issuing a lottery play record including the play information and the play random number key by the play generation processor.

Abstract: A method for operating a lottery through a plurality of lottery entities. Each of the lottery entities generates a respective plays hash of a set of play transactions issued by the entity for a lottery game, and a digital signature as a function of the plays hash, before a game drawing. Each of the plurality of lottery entities publishes the respective digital signature, followed by the respective plays hash, to other entities of the plurality of lottery entities and/or a central authority. A random number seed is generated as a function of the published plays hashes. One or more random draw numbers for the game drawing are generated as a function of the random number seed.

Abstract: Some systems, processes, apparatus and articles of manufacture provide for selling lottery entries. In one example, a request is received to purchase a multiplier and a set of play indicia for a lottery game.

Abstract: In a gaming method, player symbol data indicative of a plurality of sets of player symbols associated with a player may be received. A value payout based on respective numbers of winning symbols in respective sets of player symbols may be determined. For at least some value payouts the value payout is different than a sum of a plurality of individual value payouts. The player may select one of: a first set of symbols for a first price, both a first and second set of symbols for a second price greater than the first price, or a cross match game for a third price greater than the second price. The player is allowed to select only the first set of symbols, and a computer will select the second and a third set of symbols.