{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the applications of blockchain in cold chain logistics?","a":"Strengthening  supply chain management: Blockchain technology can achieve refined management of each link in cold chain logistics, reducing the problem of information asymmetry in a decentralized manner, and improving logistics efficiency. Meanwhile, with the help of smart contracts, automated execution of logistics contracts can be realized."}]}],"pr":"7ddf859b50058bf728f55d8af53b06fca3f4f1e1aed9ef0f5073f92af70af4de"}