Distributed database structures for anonymous information exchange

A system for distributed information exchange between multiple parties while preserving an anonymity among the multiple parties, the system comprising:

• a decentralized blockchain network maintained by a plurality of computer nodes for storing a plurality of manifests related to an object, wherein one or more blocks of the decentralized blockchain network are validated by one or more of the plurality of computer nodes and wherein at least one manifest from the plurality of manifests comprises one or more pairs of topic and verifiable information on the topic;
• one or more processors, individually or collectively, programmed to:
• (a) receive a query about the object from a user device,
• (b) parse the query to determine whether the query is associated with a pair of topic and verifiable information from the one or more pairs of topic and verifiable information, and
• (c) provide an answer to the query, wherein the answer is generated using or is verified using the verifiable information.