Let the access of real-world assets no longer rely on external bridging and fragmented outsourcing. To achieve this, Plume divides the system calls of the chain into three layers: identity and compliance modules, asset registration and accounting engine, transaction and clearing layer. The first layer makes KYC/AML a system call rather than a peripheral process through verifiable credentials and zero-knowledge selective disclosure; the second layer maps asset metadata, cash flow rhythms, custodians, and legal documents into a machine-readable state machine, with any company action (interest distribution, maturity redemption, issuance split) written onto the chain as an event stream; the third layer automatically aggregates similar assets into liquidity pools, referencing across EVM, Solana, Move, and other ecosystems through net settlement and cross-chain shadow certificates, reducing the cross-domain loss of funds. In this way, issuers can bring bonds or carbon credits on-chain as easily as deploying ERC-20s, while developers can call a unified ABI to build lending, AMM, repurchase, or structured products, and users only see a one-click subscription, real-time returns, and on-demand redemption experience. More importantly, Plume has productized the 'bad weather mode': when events such as custodian default, persistent price feeding deviation, or sudden regulatory environment changes trigger thresholds, the system immediately freezes the transfer rights of affected assets, switches to read-only mode, and initiates on-chain voting to determine disposal plans, avoiding the spread of single-point failures. Compared with the traditional public chain's 'post-install compliance', this 'a priori compliance' design allows institutions to access the blockchain world with interfaces compatible with existing backends without sacrificing security and privacy. Plume's challenge lies in the dual threshold of policy heterogeneity and cold start: different jurisdictions have vastly different registration and distribution requirements for the same asset, while on-chain liquidity highly depends on early incentives and demonstration cases. The solution proposed by the team is 'regional permissioned chains + global aggregated settlement': deploying compliant side chains in Europe, Asia, and America to meet local requirements, and then using the mainnet for settlement and data flow integration; at the same time, signing long-term framework agreements with banks, custodians, and rating agencies to provide 'demonstration issuance packages' for the first batch of bonds, receivables, and carbon credits. If this model proves successful, Plume is expected to become the public infrastructure for the digitization of real-world assets, just as Visa once facilitated cross-border settlement.