1. A system comprising: a token generator associated with a third party to issue a client set of tokens to a client; a token verification list generator associated with the third party to issue a verification set of tokens to a provider; a communication module to receive a request from the provider to redeem a provider set of tokens; a redemption module to: compare the provider set of tokens with the client set of tokens, and selectively redeem the provider set of tokens, based on the results of the comparison.
1. A system comprising: a token generator associated with a third party to issue a client set of tokens to a client; a token verification list generator associated with the third party to issue a verification set of tokens to a provider; a communication module to receive a request from the provider to redeem a provider set of tokens; a redemption module to: compare the provider set of tokens with the client set of tokens, and selectively redeem the provider set of tokens, based on the results of the comparison. 11. The system of claim 1 , wherein the redemption module is to invalidate the client set of tokens in response to the redeeming of the provider set of tokens.