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With the continuous development of digital technology, the metaverse, as a concept of virtual and real fusion, is gradually becoming a reality. However, the development of trusted collaborative network technology that underpins the metaverse is still immature. Blockchain can support the construction of trusted collaborative networks due to its own characteristics of decentralization, transparency, and traceability. However, as blockchain can only support simple digital assets such as digital currencies and tokens, it cannot implement the trusted collaboration of complex digital assets in the metaverse. Therefore, this article proposes a blockchain-based trusted collaborative network infrastructure for future digital economy and society—DareChain. DareChain has proposed a novel collaborative-worker multi-chain system, trusted subject-object account model, layered model of smart contracts supporting trusted interactions, hyperlinear ledger consensus algorithm, and transaction model that supports privacy protection. It has been explored in metaverse applications in various scenarios such as government affairs, medical care, and finance to solve problems such as single content expression, few applications of business scenarios, low throughput, and easy leakage of security and privacy when blockchain is used as the underlying trusted collaborative network for the metaverse.
Li et al. (Fri,) studied this question.