Decentralized ad matching
Brave is developing a decentralized, privacy-conscious ad platform called Brave Ads.
By decentralizing the ad display mechanism, we are trying to protect user privacy while also creating a mechanism that allows media and creators to monetize on the web.
In conventional ad networks, information on users visiting a web page is sent to the server side, appropriate ads are matched on the server, and the matched ads are displayed to the user.
Therefore, there was a risk of leakage or unintentional invasion of privacy due to the collection of information by the server side.
In addition, users were also burdened by the amount of communication and device battery consumption.
With Brave Ads, the user's information is not sent outside the user's device, and the matching of ads is completed only on the user's device.
In this way, the risk of user information leaks is minimized, and factors such as slow loading speed and battery consumption that damage user satisfaction are eliminated.
Users can also control the frequency and timing of ad delivery, so they can experience a stress-free ad viewing experience.
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The world's first privacy-conscious design
Brave Ads is the world's first privacy-conscious advertising platform.
User data is retained only within the device the user is using.
Because we aggregate and measure data only within the device, your privacy will never be leaked to the outside world.
The system is also unique in that it utilizes the advanced encryption technology "Zero Knowledge Proof".
Zero-knowledge proof is not necessary to understand, as it is one of the most difficult of the myriad cryptographic techniques.
By utilizing the zero-knowledge proof mechanism, we have made it possible to report on the performance and effectiveness of ad delivery while protecting the privacy of users.
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Opt-in and Opt-out
Brave Ads uses an opt-in mechanism as a standard specification.
There are two types of ad delivery methods: "opt-out" and "opt-in".
In opt-in, the recipient of an advertisement views the advertisement by expressing in advance his or her intention to receive the advertisement delivery.
In other words, the initiative lies with the recipient of the advertisement, and the ad-sender cannot deliver the advertisement without permission.
Opting out, on the other hand, is basically a form in which the recipient is free to distribute the advertisement, but if he or she does not like it, he or she can reject it.
In other words, the initiative lies with the ad-sender.
The opt-in method ensures that ads are delivered only to users who have consented to the display of ads.
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Learn how to prevent ad-fraud
Ad Fraud is a very serious problem in online advertising.
Ad fraud is the intentional manipulation of ad effectiveness through the use of bots or other means to view or click on ads that don't make sense.
It is predicted that by 2025, about half of the global ad spend will be wasted due to Ad Fraud.
Brave Ads has implemented several mechanisms to prevent this type of ad-fraud.
First of all, we set a limit on the number of ads a user can see in a day.
This prevents users from being rewarded for viewing a large number of ads, while also reducing the amount of unnecessary ads being served.
Ad-fraud occurs in the context of intentional opacity in existing systems.
Therefore, the second countermeasure is to release the source code as open source and make it auditable.
Also, by utilizing zero-knowledge proofs, we can eventually audit transactions with privacy protected.
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