Buying RWA assets like government bonds, real estate, and carbon credits sounds simple, but in practice, it can drive people crazy. According to the old rules, you have to repeatedly submit your passport and do facial recognition three times, each time risking privacy leaks. Institutional investors and RWA issuers are both exhausted by this process.

Is there a way to do it once and for all? zk-SBT (Zero-Knowledge Soulbound Token) might be a solution. The logic is straightforward: complete KYC at the certification center the first time, and the system will mint an APRO-KYC-SBT for your wallet. This token cannot be transferred or traded, but it is smart enough to carry ZK attributes—for example, "Country != US" (non-US users) or "Accredited = True" (qualified investor status).

On platforms like Aave Arc, the contract only needs to check whether you have this SBT and whether the attributes match, completing verification in one second. No need to flip through passports or do facial recognition again.

From a business perspective, this is essentially creating a "compliant dark pool"—participants prove their identities are clean while remaining anonymous to each other. It satisfies anti-money laundering requirements and protects privacy, perfectly addressing the pain points of institutional investors.