Purpose: For tech-savvy users who want to understand and verify contract mechanics, audits, and on-chain proofs

5.1 Smart Contract Architecture

Purpose: RWA-specific trust layer (elevated priority)

3.1 Smart Contract Security - see section 5 for more detail

Security is a core attribute. NUVA leverages the highest standards, leveraging industry best practices and undergoing rigorous audits by leading security firms.

  • 5.1.1 How the vault contract receives, holds, and manages deposits

  • 5.1.2 Vault token minting mechanics (ERC-20 standard)

  • 5.1.3 How yield accrues and compounds on-chain

  • 5.1.4 Withdrawal execution and settlement

  • 5.1.5 Contract addresses (Ethereum mainnet)

5.2 Security Audits

Audits - see section 5 for more detail

NUVA works with leading security firms like Sherlock and Halborn to ensure its smart contracts and vaults meet the highest security standards. Sherlock has completed the an audit of NUVA’s smart contracts as of December 2025, and Halborn is currently conducting an additional audit.

  • 5.2.1 Sherlock audit report (link, scope, findings)

  • 5.2.2 Audit findings and resolutions

  • 5.2.3 OpenZeppelin contract usage and track record

  • 5.2.4 Ongoing security practices

5.3 Proof of Reserves

On-Chain Proof of Reserves - see section 5 for more detail

Proof of Reserves (PoR) is an on-chain verification mechanism that lets anyone confirm a vault’s obligations to token holders are fully backed by reserves recorded on the blockchain. This replaces trust with verifiable truth, allowing users to independently verify:

  • Token Supply: The total number of tokens issued.

  • Backing Reserves: The underlying assets held in the vault.

  • Mint/Burn Activity: All token creation and destruction events.

5.3.1 How to verify vault balances on Etherscan (step-by-step)

How to Verify Underlying Assets

You can verify proof of reserves and underlying assets directly through blockchain explorers like Zonescan or Etherscan by navigating to the published vault contract addresses.

  • Transparency dashboard

  • Contract addresses: [NUVA contract addresses to be added for Ethereum Mainnet]


  • 5.3.2 nuYLDS verification path

  • 5.3.3 nuHELOC verification path

  • 5.3.4 Live proof of reserves dashboard


Provenance Blockchain

Provenance Blockchain, the world's largest Layer 1 as measured by RWAs, with more than $17 billion in total value locked (TVL), is uniquely positioned to serve compliant, scalable, and efficient decentralized finance. With its modular Cosmos-based architecture and native compliance tooling, Provenance offers a proven, secure, purpose-built foundation for the next wave of real-world asset tokenization.

In 2025, NUVA expanded Provenance Blockchain’s capabilities by contributing an innovative Vault Module that brought unique capabilities to the ecosystem including the ability to distribute automatic continuous compounding interest without cumbersome manual periodic staking or claiming.

As the NUVA Marketplace grows, Provenance’s ecosystem will benefit from increased total value locked (TVL), transaction volume, and $HASH fees.

Provenance Blockchain (Whitepaper) distinguishes itself from other chains through three foundational pillars:

1. Next-generation financial protocols & digitally native on-chain assets

  • Innovative financial services: Provenance powers Figure and Figure Markets; groundbreaking on-chain protocols that provide lending, asset management, and a marketplace for the modern user. This includes DeFi-powered management of real-world assets, automated lending infrastructures, and a revolutionary cross-chain collateral protocol—allowing users to efficiently collateralize diverse assets (from real estate to crypto) for maximum capital efficiency.

  • Robust ecosystem integration: Beyond the figure ecosystem, Provenance is validated by participation from diverse sell-side banks (e.g., Goldman Sachs, Jefferies), multiple bank fiat rail partners (e.g., UMB, Lead), and a wide range of buy-side firms (e.g., Apollo, Bayview, Marathon), with over 140 third parties leveraging Figure’s mortgage technology.

2. Enterprise-ready architecture

  • Scalable, high-performance infrastructure: Built on a secure, proof-of-stake framework, Provenance delivers the high throughput and low fees critical for real-world financial operations. This infrastructure is engineered to support the rapid on-chain tokenization of real-world assets as the market scales.

  • Interoperability & data control: Acting as a data validation chain rather than a golden dataset, Provenance empowers users with control over their information. It also supports interoperability—bridging to other Layer 1 blockchains via Axelar—and integrates enterprise features such as roles, entitlements, and decentralized MPC custody. Additionally, innovations like DART ensure instant UCC security perfection on-chain.

3. Best-in-class security & operational integrity

  • Advanced custody & compliance: Provenance employs state-of-the-art security measures including decentralized multi-party computation (MPC) custody leveraging the Cosmos SDK, ensuring that assets are safeguarded at all times

  • Regularity & institutional confidence: With established Figure Markets transfer agents, lending and servicing licenses, and alignment with local and global security standards, Provenance meets the rigorous demands of institutional clients. This robust security framework fosters trust and positions the network as the premier chain in the RWA space.