Hermetica USDh Review 2026: Bitcoin-Backed Synthetic Dollar

Hermetica USDh is a synthetic dollar protocol built on Bitcoin, running on the Stacks network. DefiLlama files it under basis trading, and its listing dates from February 2025. TVL is around $1.8M according to DefiLlama, so it is a small protocol.

The pitch is a dollar asset backed by Bitcoin rather than fiat, with yield generated by hedging. Hermetica's launch material, as shown in search snippets, says USDh uses Runes and offers yields of up to 25% with no exposure to traditional finance. The current homepage promotes hBTC, a Bitcoin-yield product behind a waitlist, and still points to USDh for buying, staking and use in Bitcoin DeFi.

Backing investors named on the homepage include figures from Zest, Liquidium, Maple Finance and DeSpread, and a former BlackRock angel. The company is Hermetica Labs, Inc.

USDh is a synthetic dollar backed by Bitcoin. To keep it worth about one dollar while the backing asset moves in price, the protocol opens short perpetual futures positions that offset the Bitcoin price exposure. Reserves are expected to be worth more than the USDh in circulation. A Google snippet from the Hermetica site showed a backing ratio of 105.04%, with about $2.09M in total backing against $1.99M supply.

The yield comes from that hedge. Short perpetual positions receive funding-rate payments when the market is long-heavy, and those payments are passed to people who stake USDh and hold sUSDh. When funding turns negative, yield falls and can be negative for the hedge.

Hermetica's homepage now leads with hBTC, a related product described as self-custodial Bitcoin that earns Bitcoin with daily yield. It shows three yield sources and a waitlist for access. That product is distinct from USDh.

Fees are not published in the material we reviewed. There is no stated mint, redeem or staking fee. Users should check the Hermetica docs and the app for any costs before depositing.

The main economic cost is indirect: yield depends on perpetual futures funding rates, and there are the usual Stacks network transaction fees when moving assets. Exchange spreads apply if you buy USDh on a market.

Hermetica lists audits of the hBTC contracts by Clarity Alliance and Greybeard Security, both dated November 2025, and says the protocol is open source. DefiLlama shows two audits. Audits reduce but do not remove smart-contract risk, and coverage of USDh specifically is not detailed in our material.

There are several other risks. The model relies on short perpetual futures positions, which brings funding-rate risk, exchange or counterparty risk where those positions are held, and the possibility of depegging. The USDh price in a snippet was $0.9996, and a third-party price listing implies a small deviation from $1. The backing ratio was about 105%, a modest buffer. Neither the custody setup for hedge positions nor any regulatory status is described publicly we have. Only deposit what you can afford to lose.

This is for crypto-experienced users in the Bitcoin and Stacks ecosystem who want a Bitcoin-backed dollar and are willing to accept funding-rate and smart-contract risk in exchange for variable yield. It is not suited to anyone who needs a guaranteed, fully liquid dollar equivalent.