OKX Security Special Edition | PoR Section: Addressing 5 Major Pain Points, How Does OKX PoR Set a New Standard for Transparency?

At least 11 mainstream centralized exchanges worldwide have released Proof of Reserves (PoR) reports, aiming to demonstrate solvency by comparing platform reserves with user assets. This is a self-regulatory action taken by centralized exchanges in the absence of unified regulatory oversight.

PoR has improved the information asymmetry between platforms and users to some extent, gradually becoming the default self-regulatory paradigm in the crypto industry. However, the implementation levels vary among exchanges: most still rely on single-point verification, facing issues such as conflicts between privacy and transparency, doubts about the authenticity of liabilities, and difficulties in assessing asset quality. To address these pain points, OKX has built a more credible verification system by introducing zero-knowledge proofs, open-source verification tools, expanding the range of covered cryptocurrencies, and increasing report frequency. This article will delve into the core pain points of the current PoR mechanism and explore how OKX is promoting industry transparency upgrades through technological and process optimizations.

Pain Point 1: Limitations of Point-in-Time Verification

PoR is typically based on a snapshot of assets and liabilities at a specific point in time, making it difficult to reflect the real financial dynamics of an exchange. During periods of market volatility or frequent capital movement, such static information is inadequate for users to assess the exchange's immediate solvency, potentially leading to a crisis of trust. For example, the collapse of FTX in 2022 exposed this issue: users suffered significant losses due to the inability to access real-time data. Moreover, some exchanges may temporarily borrow assets before an audit and immediately transfer them out after, creating a false impression of "sufficient assets." Although on-chain tracking is improving identification capabilities, such short-term behaviors severely undermine the credibility of PoR. More critically, many exchanges lack a stable reporting mechanism, even interrupting report updates during times of asset strain, further exacerbating the trust gap.

In contrast, OKX insists on releasing PoR reports monthly, having published over 30 reports, setting an industry benchmark in frequency and consistency. By continuously disclosing the platform's asset status, OKX avoids the formalism issues of one-time releases or low-frequency disclosures, allowing users to dynamically observe financial trends rather than relying on a single snapshot. This long-term, stable transparency mechanism significantly enhances the practical value of PoR and provides a more referential verification path for building trust in exchanges.

Pain Point 2: Verification Gaps in Data Authenticity and Completeness

Although the PoR mechanism can prove that an exchange holds sufficient assets, i.e., platform assets ≥ user deposits (platform liabilities), it cannot guarantee the authenticity and completeness of this data. For instance, under normal circumstances, each user's deposit balance should be positive:

Real Situation:

User deposits (platform liabilities): User A deposits 10,000, User B deposits 20,000

Platform actual assets: 20,000

PoR: 20,000 (platform assets) ÷ 30,000 (platform liabilities) ≈ 67% (insolvent)

Fraudulent Operation:

To fabricate a 100% reserve ratio, unscrupulous exchanges might create a "negative value account," claiming "User C owes the exchange 10,000."

User deposits (platform liabilities) are manipulated to: 30,000 (platform liabilities) - 10,000 (fabricated "platform liabilities") = 20,000 (artificially reduced liabilities);

False PoR: 20,000 (platform assets) ÷ 20,000 (manipulated platform liabilities) = 100% (seemingly safe).

How does OKX intercept negative value accounts and other forms of data fraud through technical constraints? OKX uses zk-STARK technology to prove and verify all OKX account assets held by the exchange. OKX takes "snapshots" of all user accounts and applies "constraints" according to the "zk-STARK" algorithm. The first is the "total balance constraint," requiring the total asset amount to equal the sum of account asset balances; the second is the "non-negative constraint," ensuring no negative asset accounts are included to inflate the balance; the third is the "inclusiveness constraint," ensuring no accounts are omitted, thus guaranteeing the authenticity and completeness of PoR data.

It is worth noting that compared to other PoR technologies, the zk-STARK solution does not require any trusted setup to generate mathematically verifiable proofs, allowing anyone to independently verify its correctness; the entire process does not rely on secret information or external trust, making it completely decentralized and avoiding platform manipulation and setup vulnerabilities, making it the safest solution for PoR currently available.

Pain Point 3: Technical Barriers for User Verification

Although PoR theoretically allows users to verify independently, in practice, ordinary users often lack the necessary technical knowledge to verify the exchange's reserve proof independently, leading most users to passively trust the conclusions of exchanges or third-party audit firms. This technical barrier severely limits the practical utility of PoR.

OKX's zk-STARK PoR solution supports user self-verification, truly realizing the core concept of "Don't Trust, Verify." For example, users can verify the inclusiveness constraint through the following steps:

• Log into the OKX account and view the detailed PoR report
• Obtain JSON data containing account balances and Merkle paths
• Use open-source tools to independently verify whether their account assets are included in the Merkle nodes

Users can also verify the total balance constraint and non-negative constraint, as well as OKX's ownership of wallet addresses and wallet assets, through self-verification tutorials and tools provided by OKX. https://www.okx.com/zh-hans/proof-of-reserves. More specifically, OKX PoR also utilizes recursive proof technology to compress all verification data into a file smaller than 1MB. This means that users do not need to download proof files that can be hundreds of MB or even several GB, greatly improving self-verification efficiency and transparency.

Pain Point 4: Lack of PoR Audit Standards

Currently, there are no unified PoR standards and methods in the industry. Users face a variety of verification processes and report formats from different exchanges, making it difficult to compare the security of each platform horizontally or assess the professionalism and credibility of audit results. This lack of standardization increases the cognitive burden on users and provides unscrupulous exchanges with room to manipulate data, further undermining the transparency of the entire industry and user trust.

To address this pain point, OKX has launched a dual-layer guarantee of internal self-certification and external verification. On one hand, the innovative zk-STARK zero-knowledge proof technology eliminates potential vulnerabilities in traditional reserve proof, achieving efficient verification without third-party trust and elevating reserve transparency to a new level; on the other hand, in-depth cooperation with independent third-party audit firm Hacken is conducted to carry out monthly regular audits, publicly sharing audit processes and on-chain data for users to review and verify independently at any time. Based on this, OKX has also fully open-sourced the PoR system, accompanied by detailed documentation and verification tools, providing the industry with a replicable standardized technical template, facilitating real-time verification and supervision by developers and the security community, and helping to promote industry consensus and the standardization process of PoR.

Pain Point 5: Insufficient Asset Quality Assessment

Many exchanges, when releasing PoR reports, often only focus on the level of "how much money and what cryptocurrencies" without in-depth analysis of asset quality, mainly reflected in: a limited range of covered cryptocurrencies, typically listing only mainstream or platform tokens while neglecting lesser-known coins and high-risk assets that account for a significant portion of holdings; an excessively high proportion of platform tokens, which can inflate overall valuation when introducing their own tokens, posing a risk of inflated values driven by interests; superficial market value displays, even if lesser-known tokens are disclosed, they are only presented in terms of nominal amounts or market value snapshots without comprehensive assessments considering market depth, liquidity, or price volatility. These shortcomings make it difficult for users to accurately judge the real solvency of the exchange. Once the market declines rapidly or liquidity drops sharply, the gap between nominal assets and actual realizable capacity will expose security risks, creating a false sense of security for users and exposing them to uncontrollable potential risks. The gap between nominal assets and actual solvency will expose security risks, bringing users a false sense of security and potential uncontrollable risks.

OKX presents asset quality from multiple dimensions rather than focusing solely on quantity:

• Non-platform token "cleanliness" is about 70%, while maintaining a reserve ratio of over 100% for each mainstream token, proving that even without relying on platform tokens, it can fully cover user liabilities.
• In the latest PoR, the total value proportion of the four major mainstream tokens (BTC, ETH, USDT, USDC) is about 66%. The total value proportion of the top 10 mainstream tokens is about 8%, and the total value proportion of the 22 disclosed tokens is about 90%, reflecting a healthier asset structure and risk diversification.
• Recently, the reserve amounts of mainstream tokens have shown stable upward trends, with ETH increasing by 7% and BTC by 5.6%, indicating that users and institutions' confidence in the platform's security and liquidity management continues to strengthen.

At the same time, OKX continues to expand the range of cryptocurrencies covered by its PoR, from the initial 3 cryptocurrencies to the current 22, essentially covering the main holdings of users, achieving a dual enhancement in the asset coverage and depth of the PoR report, providing users with a more comprehensive and transparent reference for solvency.

Leading a New Standard of PoR Transparency

The fully upgraded PoR from OKX not only represents a technological leap but also demonstrates the company's social responsibility. For users, transparency is no longer optional but an unshakable commitment from exchanges; asset verification is no longer a privilege but a basic right for every user. This upgrade has achieved a qualitative change from passive trust to active verification for users. For the industry, this move brings the crypto world back to the original intention of decentralization, marking the beginning of a mature phase in crypto finance and setting a new benchmark for transparency and security for the entire industry.

For OKX itself, the design of the PoR system makes any "malicious act" mathematically impossible, allowing the exchange to build trust without relying on reputation; when transparency is deeply embedded in the protocol layer, regulatory bodies can also rest easy; when preventive mechanisms become the norm in the industry, the risk of black swan events is significantly reduced. Looking back at the development of crypto assets, every trust crisis has spurred new solutions, and this time, OKX's PoR is not only a technological breakthrough but also a liberation of concepts—proving to the world that in the Web3 world, trust can be encoded, transparency can be verified, and security can be witnessed.