DefiLlama founder 0xngmi has announced the development of a new off-chain attestation and verification service, designed to audit and verify off-chain data — including bank account balances — in a trust-minimized manner. The service aims to help DeFi projects reliably validate Real World Assets (RWA) and other off-chain information before onboarding them on-chain.
The Challenges of Off-Chain Verification
Traditional oracles primarily handle on-chain data, such as token prices, trading volumes, and smart contract states. However, verifying off-chain data like bank statements, corporate balance sheets, or physical asset registries introduces privacy, legal, and technical hurdles. Banks and financial institutions require confidential handling of their clients' account data, while DeFi protocols need cryptographically assured proof that the data hasn't been tampered with. Existing solutions often fail to satisfy both sides simultaneously, leaving a gap in the RWA tokenization workflow.
Without a reliable off-chain attestation layer, protocols relying on collateralized loans backed by bank balances or institutional assets must resort to manual audits or trusted third parties, defeating the purpose of decentralization. The new service from 0xngmi directly targets this bottleneck.
How the Service Might Work
While the full technical specification hasn't been released, the announcement suggests that the system will leverage zero-knowledge proofs or trusted execution environments to generate cryptographic proofs of off-chain data without exposing the raw information. This would allow a smart contract to confirm, for example, that a specific bank account holds at least $1 million in liquid funds without revealing the exact balance or transaction history.
DefiLlama already aggregates data from hundreds of DeFi protocols, tracking total value locked (TVL), flows, and staking metrics. The pivot to off-chain attestation is a natural extension of the platform's role from a data observer to a data verifier. Unlike Chainlink's proof of reserve (PoR) feed, which typically relies on periodic snapshots from custodians, 0xngmi’s service aims to offer real-time or near-real-time attestations directly from bank APIs with user consent.
Implications for the RWA Ecosystem
The tokenization of real-world assets is one of the most anticipated trends in crypto for 2026 and beyond. Research from firms like McKinsey and Roland Berger estimates the addressable market for tokenized assets could reach $10–30 trillion by 2030. Yet, the verification of core off-chain data — bank balances, accounts receivable, insurance policies — remains a critical obstacle. DefiLlama's service, if successful, could drastically lower the compliance cost for institutions looking to issue tokenized securities or use bank deposits as on-chain collateral.
Competing projects like Pyth Network and Supra are also building cross-chain oracles with off-chain data capacity, but their focus is often on price feeds or market data. DefiLlama's branding as a neutral, community-governed data layer gives it a unique advantage when targeting institutional users who value transparency and auditability.
However, the initiative is still in its early stages. Key questions remain unanswered: which banking APIs will be supported? Will the service be permissionless or require KYC? What is the fee model? The market is watching closely, and the actual impact will depend on execution speed and real-world adoption by both banks and DeFi protocols.
Conclusion
By moving into off-chain attestation, 0xngmi and the DefiLlama team are positioning themselves at the intersection of DeFi and traditional finance. If the service delivers on its promise of privacy-preserving, real-time bank balance verification, it could become a foundational primitive for the next wave of RWA adoption. The industry will benefit from a standardized, trust-minimized bridge between off-chain assets and on-chain protocols.
DefiLlama's existing reputation and user base provide a strong launchpad, but the technical and regulatory hurdles are substantial. The coming months will reveal whether this initiative can turn a compelling concept into a production-grade tool.