StarkWare Validates Quantum-Safe Method With Bitcoin Mainnet Transaction

Bitcoin sat at $78,714 with a 1.4 percent gain while ETH held $2,466.39 after a 1.3 percent move. The modest advance in majors came as operators reviewed a new way to protect ownership without altering consensus.

Transaction on the chart

StarkWare announced on August 26 that a quantum-safe Bitcoin transaction had been mined in block 964199. The move spent a 10,000-satoshi output and paid a 5,179-satoshi fee. At prevailing prices the output equaled roughly eight dollars. The transaction used hash-based locks and off-chain signature grinding, methods drawn from Avihu Levy research completed in April 2026. Engineer Tomer Giladi turned the research into the working mainnet example.

Ownership focus

The approach lets holders move coins into storage that a quantum computer cannot open. It applies only to addresses whose public keys remain unpublished. Coins already exposed through reused addresses stay outside its reach. No consensus change occurred, so the network rules stayed the same. MARA Slipstream carried the nonstandard transaction past the ordinary mempool.

Utility and cost

The method replaces elliptic-curve assumptions with hash-based protections. Off-chain work added several hundred dollars in expense for this first run. CEO Eli Ben-Sasson described the effort as a passion project that shows holdings can be shielded ahead of any future soft fork. The test demonstrates an opt-in path rather than a network-wide upgrade.

Market reading

Spot prices reflected steady interest in majors. SOL posted a 2.5 percent advance to $106.34 while XRP added 0.9 percent at $1.40. DOGE rose 0.6 percent to $0.085385. Traders watched the quantum news for signs that long-term ownership tools could support further participation without immediate protocol shifts.

Limits in view

The transaction does not render Bitcoin quantum-safe as a whole. It cannot assist addresses that already published public keys. Direct miner submission remains necessary because the format sits outside standard relay rules. A soft fork stays the preferred long-term route for broader coverage.

Next steps for operators

Holders now have a documented route to move value into quantum-resistant storage before wider upgrades arrive. The mainnet confirmation supplies a concrete reference point for anyone evaluating storage options. Market participants can track follow-on tests through the same sources that published the initial result.