OKX Proof-of-Reserves

Background

OKX launches Proof of Reserve (PoR) to improve the security and transparency of user's assets. These tools will allow you to independently audit OKX's Proof of Reserves and verify OKX's reserves exceed the exchange's known liabilities to users, in order to confirm the solvency of OKX.

Introduction

Building the source

Download the latest build for your operating system and architecture. Also, you can build the source by yourself.

Building this open source tool requires Go (version >= 1.17).

Install dependencies

 go mod tidy 

Compile

make all

Executable

Proof-of-Reserves executable are in the cmd directory

Command	Description
VerifyAddress	We have signed a specific message with a private key to each address published by OKX. This tool can be used to verify OKX's signature and verify OKX's ownership of the address.
CheckBalance	Configure blockchain node RPC or OKLink API to use this tool, you can check the balance on the chain corresponding to the snapshot height of OKX, then compare it with the balance published by OKX, and query the total assets of OKX's wallet address on the chain.
MerkleValidator	OKX's PoR uses a Merkle tree, and you can use this tool to check whether your account assets are included in the Merkle tree published by OKX.

Reserves

Download OKX's Proof of Reserves File, verify the ownership of the OKX's public address, and check whether the OKX snapshot height balance is consistent with the published balance.

VerifyAddress

OKX's public file contains address, message "I am an OKX address" and signature. You can use VerifyAddress to verify OKX's ownership of published address.

  ./build/VerifyAddress  --por_csv_filename ./example/okx_por_example.csv

At the same time, you can use third-party tools to verify the ownership of BTC single addresses, EVM , and TRX addresses.

CheckBalance

You can use CheckBalance to verify the OKX wallet address balance with the corresponding block height snapshot. Details here

Sum of all address balances

  ./build/CheckBalance --rpc_json_filename="./example/rpc.json" --por_csv_filename ./example/okx_por_example.csv

Query the snapshot height balance on the chain

./build/CheckBalance --mode="single_coin" --coin_name="ETH" --rpc_json_filename="./example/rpc.json" --por_csv_filename="./example/okx_por_example.csv"

Liabilities

OKX's PoR uses Merkle tree technology to allow each user to independently review OKX's digital asset reserve on the basis of protecting user privacy.

MerkleValidator

Log in to OKX, go to the Audits page to view audit details, download the Merkle tree path data, copy and save it as a file merkle_proof_file.json, and run the following command to check whether your assets are included in the total user assets of OKX.

./build/MerkleValidator --merkle_proof_file ./example/merkle_proof_file.json