Chainlink Expands Proof of Reserve System Across Multiple Blockchains Amid Growing Focus on Exchange Transparency

Jul 22, 2026

Chainlink has expanded its Proof of Reserve system to Ethereum, Base, Monad, and Ink, utilizing decentralized oracles to improve asset collateral verification. This expansion comes amid heightened industry focus on exchange transparency following the 2022 collapse of FTX, which left an $8 billion shortfall. While Proof of Reserves provides cryptographic verification of assets and liabilities, institutions demand further protections like asset segregation and regulatory oversight before committing capital.

Chainlink Proof of Reserve expansion

▪Chainlink expanded its Proof of Reserve system to provide onchain reserve data across Ethereum, Base, Monad, and Ink blockchains.
▪Chainlink's Proof of Reserve system utilizes decentralized oracles to enhance asset collateral verification across multiple blockchain networks.

Proof of Reserves verification methods

▪Proof of Liabilities utilizes cryptographic tools such as Merkle trees and zero-knowledge proofs to allow private user balance verification.
▪Proof of Reserves consists of Proof of Assets to verify wallet control and Proof of Liabilities to aggregate exchange obligations.

Exchange transparency and trust deficits

▪The 2022 collapse of FTX, which resulted in an $8 billion customer deposit shortfall, prompted widespread industry adoption of Proof of Reserves.
▪Proof of Reserves is a single-moment snapshot that cannot capture offchain holdings or expose hidden, off-balance-sheet liabilities.

Exchange reserve standards and Binance leadership

▪Binance maintains the Secure Asset Fund for Users, an emergency insurance fund established in 2018 holding approximately $1 billion.
▪Binance open-sourced its zk-SNARK-based Proof of Reserves verification system to establish a public benchmark for other cryptocurrency exchanges.

Institutional trust and asset protection

▪Institutional allocators require clear asset segregation, recognized regulatory oversight, and robust insolvency protections before committing large capital.
▪Verifiable backing of stablecoin balances serves as a critical liquidity signal of an exchange's capacity to meet large-scale redemptions.