答案:【计分规则】: Blockchain can be defined as a distributed ledger technology that can record transactions between parties in a secure and permanent way. By ‘sharing’ databases between multiple parties, blockchain essentially removes the need for intermediaries who were previously required to act as trusted third parties to verify, record and coordinate transactions. By facilitating the move from a centralized to a decentralized and distributed system, blockchain effectively liberates data that was previously kept in safeguarded silos.