Another problem faced by the media industry is related to digital advertisements. The online advertisements are facing a much bigger fraud, which is ad fraud. A multi billion dollar problem concerning the practices of fraudulently representing online advertisement impressions, clicks, conversion, or data events to generate revenue. A solution for such a problem is to set up a inter operable, open protocol built over a public blockchain. A smart contract can be initiated on the blockchain that maintains and stores the record of all the publisher domain names accredited as non fraudulent. holders of the tokens over the blockchain can perform the accreditation Moreover, the ledger can be challenged and updated in case a false entry has been made.

It will also maintain all the history Have entries on the system. In this way, we will make sure that only the non fraudulent and accredited publishers are stored for digital advertisements. Moreover, if somehow a fraudulent publisher is added to the ledger, then we can still challenge that publisher. The benefit of using such a solution is that it will provide transparency for the advertiser. The incentives for artificially inflating supply volume for advertisements will also be reduced by employing such a solution. Now let's visualize this use case with the help of a diagram.

As you can see in this diagram, we are maintaining a domain registry, which has been stored over the blockchain. It has the list of domains and the status of the domains available. This list shows whether a domain is an accredited domain or a fraudulent one. The proof status of these domains is provided by the accreditation committee, who is also the holder of the tokens. The accreditation committee put its vote as per tokens it is holding over the domain name. The committee is performing a similar operation as delegated proof of steak and verifying domains.

Once a domain receives the number of desired votes, it will be stored immutably over the blockchain. Moreover, sites can also apply to be added to the domain registry, where they pay a specific amount of payment to initiate the verification process. They can also use domain registry by paying a particular amount and get the list of approved domains for advertisements. The safety vendors and users can challenge the domain registry to by providing the details of how a side domain is not suitable for digital advertisements.