{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain technology ensure the privacy protection of digital identities?","a":"Consensus mechanisms: Consensus mechanisms in blockchain networks (such as proof of work, proof of stake, etc.)  ensure the integrity and consistency of data."}]}],"pr":"8bc05410dfa2c087036e0d9e6bdd2881d73dc270e86fa176b1acacd063034cdb"}