To provide transparency into the USDh protocol’s backing assets, we are sharing our May 2026 attestation report from all integrated custodians. The report verifies that the assets backing USDh reside off-exchange within institutional custodial solutions. 

Attestation reports are released monthly to provide regular updates on the amount and location of the assets backing the protocol. 

As of 15:00 UTC May 20, 2026, USDh supply was $9,458,346.15 per the sources below.

9,458,346.15 USDh on Stacks per the Stacks explorer link: https://explorer.hiro.so/token/SPN5AKG35QZSK2M8GAMR4AFX45659RJHDW353HSG.usdh-token-v1?chain=mainnet

USDh on Runes was sunset on May 15, 2026. As a result, USDh on Runes deployment is no longer active and has been excluded from this attestation report. The USDh supply, backing assets, custodian balances, and reserve figures presented below reflect only the active USDh deployment on Stacks as of the snapshot time. 

$3,156,602.70 has been verified to be held within solutions offered by Copper as of 15:00 UTC May 20, 2026, including unrealized P&L.

At 15:00 UTC May 20, 2026, there was $122,699.40 in the Redeeming Reserve on Stacks, $6,194,934.68 in the Ethereum Settlement Wallet, $0.00 in the Mint Wallet, and $103,846.18 in the Reserve Fund.

The 5,625,013.47 sUSDat in the Ethereum Settlement Wallet was worth $5,640,600.38. sUSDat total supply was 104,036,544.13 backed by 888,220.58 STRC (84.7%) worth $88,129,245.74 and 16,978,875.80 USDat (16.3%) worth $16,978,875.80, per the Ethereum explorer link: https://etherscan.io/address/0xD166337499E176bbC38a1FBd113Ab144e5bd2Df7#readProxyContract

STRC was worth 99.22 for $4,764,942.92 of STRC exposure, per the Chainlink oracle verified via the Ethereum explorer link: https://etherscan.io/address/0x5f7eCD0D045c393da6cb6c933c671AC305A871BF#readContract

In summary, as of the snapshot time: