{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain solve problems in the digital advertising industry?","a":"Transparency: Blockchain technology can achieve full transparency in the entire process of advertising delivery, making  the transactions between advertisers, agencies, and platforms more open and transparent. Through smart contracts, all participants can clearly understand the rules, costs, and effects of advertising delivery, thereby improving the transparency of the entire advertising industry chain."}]}],"pr":"457646735d4c7edcf0dff4a37aacbe384d81cf46ab3cb11b8fbd0b69f4ba5ae7"}