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Tokenized Gold: How It Works and Why It Became the Second-Largest RWA Category

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Tokenized Gold: How It Works and Why It Became the Second-Largest RWA Category

Tokenized Gold: How It Works and Why It Became the Second-Largest RWA Category

How tokenized gold works: what the holder owns, how PAXG and XAUT differ on custody, audits and redemption, how the tokens compare with a gold ETF, the unsettled tax position, and the risks that remain.

How tokenized gold works: what the holder owns, how PAXG and XAUT differ on custody, audits and redemption, how the tokens compare with a gold ETF, the unsettled tax position, and the risks that remain.

Sentora Research

Sentora Research

Gold was the first asset humans held as a store of value and the last one anybody expected blockchains to improve. It pays no income, requires physical storage, and trades in a market that has functioned for centuries without help. The case for putting it on-chain looked weak.

And yet, the market decided otherwise. Gold-backed tokens grew into the second-largest category of tokenized real-world assets, behind Treasuries and ahead of every other asset class. They did so because the token solved a problem the metal has always had: physical gold is difficult to move, divide, and pledge. A token representing an ounce of it is easy to do all three with, at any hour, without the bullion leaving the vault.

This article explains the structure behind that token. It covers what the holder owns, how the two dominant products differ, how the category compares with a gold ETF, why the tax position remains unsettled, and which risks survive the move on-chain.

What the Holder Owns

Each token represents direct ownership of one fine troy ounce of gold stored in a vault. Unlike a fund where you might own a fractional interest in a vague, mixed pile of gold, these tokens are linked to specific, serial-numbered bars. Because your gold is tied to these specific bars rather than a general "pooled inventory," the metal is kept off the custodian’s balance sheet, protecting it from the custodian's creditors in the event of bankruptcy.

The two primary products in the market, Pax Gold (PAXG) and Tether Gold (XAUT), are managed by issuers (Paxos and Tether, respectively) who publish the link between their tokens and the specific gold bars they represent. A holder can look up the serial number of the bar allocated against their position. The bars are London Good Delivery standard, which is the benchmark specification of the institutional bullion market.

The claim itself runs against the issuer rather than against the vault. A holder owns a contractual right to a defined quantity of metal, and the strength of that right depends on the issuer's structure, its regulator, and the terms of its redemption policy. Segregation and bankruptcy remoteness are the properties to check, because they determine what happens to the metal if the issuer fails.

Beyond ownership structure and security, tokenization introduces significant functional benefits. The most notable of these is divisibility: because tokens can be subdivided to eighteen decimal places, investors can gain exposure to gold in fractions of a dollar rather than requiring a whole physical bar. Additionally, on-chain transfers settle in minutes, enabling continuous trading that functions even when traditional bullion markets are closed.

It is worth clarifying a common misnomer: these instruments are often erroneously called "gold-backed stablecoins." This label is misleading, as stability is not their objective; they track the spot price of gold and fluctuate accordingly. A more accurate classification is a digital commodity claim.

PAXG and XAUT Compared

While PAXG and XAUT share the same backing standard, they differ on nearly every operational aspect an institution would examine.

Dimension

Pax Gold (PAXG)

Tether Gold (XAUT)

Issuer

Paxos Trust Company

TG Commodities Limited, part of the Tether group

Regulatory position

Launched September 2019 under a New York State Department of Financial Services trust charter, later operating under specific approval from the Office of the Comptroller of the Currency

Issued from a British Virgin Islands entity, without a comparable US prudential regulator

Vault location

Brink's vaults in London

Vaults in Switzerland

Bar transparency

Allocation lookup tool mapping tokens to serial-numbered bars

Published bar list mapping tokens to London Good Delivery bars

Attestation cadence

Monthly, by an independent audit firm

Quarterly issuer attestations

Physical redemption minimum

430 tokens, matching a London Good Delivery bar

50 ounces, with terms varying through secondary dealers

Chain support

Concentrated on Ethereum

Multi-chain, including Ethereum and Tron

Custody fees

None ongoing

None ongoing

The decision between these products ultimately depends on an investor's operational priorities:

  • PAXG offers a US prudential regulator, monthly attestations, and bankruptcy-remote segregation under a trust charter. 

  • XAUT offers wider chain support, a lower physical redemption threshold, and deeper integration across venues that operate outside US oversight.

Redemption minimums deserve attention because they define who the redemption right serves. A 430-token minimum runs well into seven figures at 2026 gold prices, which makes physical redemption an institutional facility rather than a retail one. Most holders in both products will exit by selling rather than by redeeming, which means secondary market depth matters more to them than the redemption terms in the documentation.

Cost structures are similar enough that they rarely decide the choice. Neither product charges an ongoing custody fee, which distinguishes both from a gold ETF carrying an annual expense ratio. Costs arise at creation and redemption, and on transfer through network fees, which makes chain support a practical consideration. Moving a position on a low-fee network costs a fraction of the same transfer on Ethereum during congestion.

Why Gold Worked When Other Commodities Did Not

Gold tokenized successfully because it arrived with properties other commodities lack, beginning with standardization. A London Good Delivery bar is a defined specification, so one ounce is interchangeable with any other. Grain, crude, and diamonds all require grading, which makes fungibility hard to establish on-chain and harder to maintain across a supply chain.

Price transparency compounds that advantage. A deep global spot market publishes a reference price any oracle can source reliably, and collateral use depends on exactly that property. A lending market needs a price it can trust before it can accept an asset at all. Storage economics help as well, since an ounce of gold is worth thousands of dollars and occupies almost no space, which keeps vault costs small against the position. Bulk commodities invert that ratio and make the custody leg expensive relative to the value represented.

Demand for the token existed independently of any of this. Holders of cryptocurrency and other digital assets wanted exposure to a safe haven without leaving the environment they already operated in. Gold also trades continuously on-chain while the bullion market observes weekends and holidays, which gives the token a functional difference from the metal. Energy and agricultural tokens fail the first two tests and have stayed early-stage as a result.

Tokenized Gold Compared With a Gold ETF

The comparison turns on custody, redemption rights, settlement, and on-chain usability.

Dimension

Physically backed gold ETF

Tokenized gold

Custody

Bullion held by the trust's custodian, with the investor holding fund shares

Bullion held by the issuer's custodian, with the holder holding a token claim

Redemption rights

Redemption in metal generally restricted to authorized participants at basket size

Redemption available to holders meeting the issuer's minimum, subject to identity checks

Settlement

Exchange hours, conventional clearing and settlement cycles

Continuous transfer on-chain, settling in minutes at any hour

On-chain usability

None

Accepted as collateral in lending markets and traded in decentralized exchange pools

The first three items favour the ETF for many institutional holders, because the fund wrapper is familiar, the market is deep, and the operational path runs through existing infrastructure. The fourth item is where tokenized gold offers something the ETF cannot.

That capability is the reason the category matters beyond its size. A holder can pledge a gold position as collateral and borrow against it without selling, which turns a non-yielding store of value into a productive asset. 

The Residual Risks

Four exposures survive the move on-chain and belong in any allocation memo:

  • Issuer concentration. Two products hold most of the category, each with one issuer, one custody arrangement, and one attestation process behind it.

  • Redemption limits. High physical minimums put redemption out of reach for most holders, so the peg depends on arbitrage by the parties who can exercise it.

  • Wallet freeze controls. Both issuers can freeze tokens to satisfy court orders, sanctions obligations, and law enforcement requests.

  • Jurisdictional variation. Availability, regulatory classification, and tax treatment differ by market, and a product accessible at one venue may be restricted at another.

The first two compound each other. Concentration means a failure at either issuer would affect a large share of the segment at once, and no third product has reached the scale required to absorb that. Redemption limits mean the mechanism that holds the peg together depends on a small set of participants remaining willing and able to act. The freeze capability is a condition of operating a regulated instrument rather than a defect, and it does mean a holder's control over the asset is conditional.

These four risks highlight a critical dependency that remains unaffected by tokenization. The intrinsic value of the token continues to rely entirely on the physical presence of gold in a vault, verified through rigorous independent audits and secured under legal frameworks that protect holders in the event of issuer insolvency. Ultimately, while tokenization modernizes the method of recording ownership, it does not eliminate the necessity for these fundamental physical and legal safeguards.

What the Category Demonstrates

Tokenized gold answers a question the wider market has been asking about every asset class. Gold generates no cash flow and trades in a mature market that needed no improvement. It grew on-chain anyway, because the token made the metal easier to hold, move, and pledge than the metal itself.

Tokenization creates value when it gives an asset a capability its conventional form lacks, rather than when it simply changes the format of the record. Gold gained divisibility, continuous settlement, and collateral utility. Treasuries gained the same set of properties and scaled faster still. Equities, credit, and commodities beyond gold face the same test.


Sentora Co-founder Jesus Rodriguez, joined by Katya Ternopolska, VP of Sales and Partnerships, and Lucas Outumuro, VP of Institutional DeFi, takes this up in Beyond the Wrapper: What Tokenized Assets Do Next. They discuss what it takes for equities to function as productive collateral for borrowing, hedging, and yield. The session also covers how liquidation, oracle, and liquidity risk are solved at scale, and where the tokenised asset market is heading across Treasuries, credit, and gold.