Hold Dollars.
Earn Bitcoin.
Earn up to 6% annually in Bitcoin with USDB, a dollar-backed stablecoin that pays Bitcoin daily with zero staking.
A dollar 
on Bitcoin
USDB is the best way to earn Bitcoin, the asset no one can print more of.
No staking, no lockups, no bullsh
t. Simply hold USDB and earn Bitcoin every single day.
Bridge USDC from anywhere
USDB is fully backed by U.S. Treasuries and designed to be the best way to earn bitcoin.
United States
Regulated
Issued by Brale, a licensed financial entity. Compliant from day one.
Native
to Bitcoin
Built on Spark. No bridges. No wrapping. No counterparty chains.
Treasury
Backed
Every USDB is backed 1:1 by U.S. Treasury bills. Real reserves, not algorithms.
Frequently
Asked Questions
USDB is the first stablecoin native to Bitcoin. It's a dollar-pegged digital currency built on Spark that earns you rewards in Bitcoin — not dollars. Every USDB is backed 1:1 by U.S. Treasury bills, combining the stability of the dollar with the upside of Bitcoin.
Flashnet pays BTC rewards from its own revenue. No rehypothecation, no lending, no fractional reserves. Flashnet doesn't even issue USDB — Brale does.
Simply hold USDB. That's it. The revenue Flashnet makes from trading and other revenue is automatically converted to Bitcoin and distributed as rewards to holders. No staking, no lockups, no complex DeFi strategies required. Your Bitcoin rewards accrue continuously.
USDB is backed 1:1 by U.S. Treasury bills — the safest assets in traditional finance. It's issued by Brale, a U.S.-regulated financial entity, ensuring full compliance. There are no algorithmic mechanisms or fractional reserves.
Unlike USDT or USDC, USDB is native to Bitcoin via Spark; no bridges, no wrapping, no counterparty chain risk. And unlike traditional stablecoins where issuers don't reward holders, USDB rewards you with Bitcoin.
Spark is a Bitcoin-native layer that enables fast, low-cost transactions while maintaining Bitcoin's security guarantees. USDB is built directly on Spark, meaning your stablecoins live on Bitcoin infrastructure — not a separate blockchain.