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...It features DQL, a query language compatible with GraphQL but providing extra convenience. By leveraging peer-to-peer networking it can be deployed nimbly in novel topologies. Access control is determined by a relationship-based DSL, supporting document or field-level policies, secured by the SourceHub network. DefraDB is a core part of the Source technologies that enable new paradigms of decentralized data and access-control management, user-centric apps, data trustworthiness, and much more.

...There are however at least 3 problems associated with the above-mentioned implementations. (1) the subjective nature of relevance, (2) difficulty in scaling consensus computers for over-sized knowledge graphs, (3) the lack of quality amongst such knowledge graphs. They are prone to various surface attacks, such as sybil attacks, and the selfish behavior of the interacting agents. In this document, we define a protocol framework for provable consensus computing of relevance, between content-addresable objects, which can be computed on GPUs.