Assuring transaction integrity on a network

A method for verifying a correctness for a result of an electronic activity, resulting in an exchange of a monetary asset, among multiple parties participating in the electronic activity via communications on a communications network, the electronic activity having (i) one or more cryptographic related processes for detecting data changes for verifying the correctness, and (ii) one or more termination events that, when communicated for notification to at least two of the multiple parties, terminate the electronic activity, the termination events known to the parties prior to commencement of the electronic activity, comprising performing by computational equipment(A), (B) and (C) following:

• (A) receiving communication, via the network and at a computational machine for a first party of the multiple parties, first information for securing first data from a change, wherein one of the cryptographic related processes is used in the securing of the first data, the first data used in performing the electronic activity by the multiple parties;
• wherein the first information is provided via a computational machine for another of the multiple parties, and wherein the first data identifies one or more values for applying one or more predetermined machine encoded constraints related to performing the electronic activity, the electronic activity generating one or more machine results based on machine enforcement of executable machine instructions for the one or more predetermined machine encoded constraints, at least one of the constraints and the machine results for one of:
• (i) assisting in assuring, or (ii) indicating the correctness for the result of the electronic activity;
• (B) obtaining second information by the computational machine for the first party, during and prior to a termination of the electronic activity, the second information for a data collection including the first data;
• wherein the second information is not available to any of the multiple parties for affecting the electronic activity prior to one of the termination events;
• (C) verifying the correctness for the result of the electronic activity, after a termination of the electronic activity according to one of the termination events, wherein data having a content corresponding to both the first information and the second information is input to one or more of the cryptographic related processes for independently verifying the correctness for the result of the electronic activity by at least two of the multiple parties, and wherein the second information provides the computational machine for each of the at least two of the multiple parties with information for identifying whether the data collection changed during a time prior to the electronic activity terminating;
• wherein the electronic activity includes one or more transmissions on the network via the computational machines for the multiple parties, at least one of the transmissions involving at least two of the parties, wherein a content of the transmissions is dependent on the machine results based on the machine enforcement of the executable machine instructions for the predetermined machine encoded constraints;
• wherein the electronic activity includes one of:
• a game, a contest, a sweepstake, a lottery, a drawing, an auction, a bidding activity, a selection from a group, a testing service, and generating data for the exchange of the monetary asset.