The United States Commodity Index Funds Trust (the “Trust”) is a Delaware statutory trust formed on December 21, 2009. The Trust is a series trust formed pursuant to the Delaware Statutory Trust Act and is organized into four separate series. The USCF Crescent Crypto Index Fund (“XBET”) formed onMay 7, 2019, is a series of the Trust. The Trust and XBET operate pursuant to the Trust’s Fourth Amended and Restated Declaration of Trust and Trust Agreement (the “Trust Agreement”), dated as of December 15, 2017. Wilmington Trust Company, a Delaware trust company, is the Delaware trustee of the Trust. The Trust and XBET are managed and controlled by USCF. USCF is a limited liability company formed in Delaware on May 10, 2005, that is registered as a commodity pool operator (“CPO”) with the Commodity Futures Trading Commission and is a member of the National Futures Association (“NFA”). The investment objective of XBET is for the daily changes in percentage terms of its per share net asset value (“NAV”) to reflect the daily changes in percentage terms of the Crescent Crypto Core II Index (the “CCINDX”), less XBET’s expenses. The CCINDX was designed by Crescent Index Services, a wholly owned subsidiary of Crescent Crypto Asset Management, LLC (“Crescent”) to track the performance of a market capitalization weighted portfolio of Bitcoin and Ether (each, a “Portfolio Cryptocurrency” and collectively, “Portfolio Cryptocurrencies”). In seeking to track the CCINDX, XBET’s sponsor, United States Commodity Funds LLC (“USCF”), will invest XBET’s assets in Portfolio Cryptocurrencies. --- CCINDX CCINDX is composed of a portfolio (the “Portfolio”) of Bitcoin and Ether (each, a “Portfolio Cryptocurrency” and collectively, “Portfolio Cryptocurrencies”), which are the largest and most liquid cryptocurrencies. CCINDX was designed by Crescent. For purposes of assigning a weight to each Portfolio Cryptocurrency, Crescent calculates market capitalization using data from a select subset of publicly-available cryptocurrency exchanges and liquidity providers, including over-the-counter (“OTC”) liquidity providers, representing a high-qualify subset of global volumes of each Portfolio Cryptocurrency. The Crescent Crypto Index Committee selects liquidity providers based on a strong history of security controls, availability to US institutional investors, substantial trading volumes, and a strong track record of local regulatory compliance. The pricing used to calculate the market capitalization of a cryptocurrency is determined by taking the exchange volume weighted average price from all eligible exchanges. The circulating supply of each cryptocurrency is then multiplied by the calculated price to determine the market capitalization. The index does not use any ‘cap’ or ‘floor’ factors to restrict the weights of the components. The index will be rebalanced on a monthly basis. Bitcoin and the Bitcoin Network Bitcoin is based on the decentralized, open source protocol of a peer-to-peer network (the “Bitcoin network”). No single entity owns or operates the Bitcoin network. Bitcoin is not issued by governments, banks or similar organizations. The infrastructure of the Bitcoin network is collectively maintained by a decentralized user base. The Bitcoin network is accessed through software, and software governs bitcoin’s creation, movement, and ownership. The value of bitcoin is determined, in part, by the supply of, and demand for, bitcoin in the global exchange markets for the trading of bitcoin, market expectations for the adoption of bitcoin as a decentralized store of value, the number of merchants and/or institutions that accept bitcoin as a form of payment and the volume of private end-user-to-end-user transactions. Bitcoin transaction and ownership records are reflected on the “Bitcoin Blockchain,” which is a digital public record or ledger. Copies of this ledger are stored in a decentralized manner on the computers of each Bitcoin network node (a node is any user who maintains on their computer a full copy of all the bitcoin transaction records, the blockchain, as well as related software). Transaction data is permanently recorded in files called “blocks,” which reflect transactions that have been recorded and authenticated by Bitcoin network participants. The Bitcoin network software source code includes protocols that govern the creation of bitcoin and the cryptographic system that secures and verifies bitcoin transactions. Ether and the Ethereum Network Ether is a digital currency used to fuel the Ethereum blockchain. In order to create smart contracts and DApps, Ether is required for application developers to pay for transaction fees and computational services on the Ethereum network. All transactions on the Ethereum network require Ether to be executed. Ethereum is an open sourced, decentralized smart contract platform that runs on a blockchain and enables self-executing code called smart contracts or decentralized applications (DApp). No single entity owns or operates the Ethereum blockchain. Rather, the infrastructure is maintained by a decentralized user base, who both support the network and build DApps. These DApps run exactly as programmed without the possibility of censorship. This allows developers to create autonomous and binding contracts capable of self-executing without the need for a trusted middleman or counterparty. Similar to Bitcoin, the Ethereum Network maintains a decentralized ledger to determine the exact Ether balance of any digital wallet on the Ethereum blockchain. Transfers of Ether are made peer-to-peer between end users without any intermediaries. Each transaction is broadcast to the network and permanently recorded on the blockchain by all of the Ethereum validators. All of these transactions are public and can be viewed using a block explorer. --- The address of both USCF and XBET is 1850 Mt. Diablo Boulevard, Suite 640, Walnut Creek, CA 94596. The telephone number for both USCF and XBET is 510.522.9600. XBET’s website is www.uscfinvestments.com.