A block chain method of verification to authenticate advertising payment chains is disclosed. The online advertisement transactions are registered on a public ledger so that the middle reselling layers are available. Cryptographic validation is used here. The information in the public ledger could be used to establish reselling nodes between advertisers and content publishers. The computation is done either by the advertisement network or the advertisers themselves. The method is intended to establish valid ownership chains for advertising. The advantages of the method are that this method can be performed across the entire advertisement ecosystem and there is no restriction to any central owner or authentication committee to map buyers to sellers. Through this, at any given time a buyer could also validate acceptable buyers and could either remove or block nodes to those the buyer wants to permanently blacklist.
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Jacobson, Alex, "Method Of Block Chain Verification To Authenticate Advertising Payment Chains", Technical Disclosure Commons, (March 01, 2017)