{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain technology solve the trust crisis in the digital advertising and media industry?","a":"Data cannot  be tampered with: Blockchain uses encryption algorithms, and once data is recorded in a block, it is difficult to tamper with it. This makes the data in the advertising delivery process reliable and authentic, helping to build trust between advertisers, media, and users."}]}],"pr":"6e4e68ef914895fa1a36e9e49ccd259f4a0d69ae6c34baf980720aa839ecf254"}