Today's dominant chains were designed before quantum attacks were credible.
Even with upgrades, they require user action to secure wallets, leaving large amounts of inactive supply vulnerable.
Post-quantum peer to peer digital value
Crypto is vulnerable to quantum theft, but it doesn't have to be. For the first time, digital value can be secured natively with quantum-resistant signatures from block zero.
PERMISSIONLESS
Native SHA-256
AUXPOW SHA-256
QBIT CHAIN
Merge-Mined, Quantum-Secure
Qbit solves this.
QBT is quantum-secure from inception and built to be the most durable digital store of value: no premine, 100% community distribution, and Bitcoin-backed security.
Decentralized, Community-Led.
Fair Proof-of-Work
QBT has a fixed 210,000,000 supply cap, mining-only distribution, no premine, and no outside token allocation. Initial difficulty is calibrated so the implied fully diluted cost of producing QBT is $100M, minimizing instamine risk.
SUPPLY CAP
210M QBT
Initial Production Cost
$100M
Bitcoin Secured
Qbit combines permissionless SHA-256 mining with AuxPoW merge mining, allowing Bitcoin hashrate to secure the chain. The AuxPoW launch difficulty is calibrated to equal 1% of Bitcoin’s hashrate, reducing instamine risk from a single miner or pool.
Launch Hashrate
1% BTC
MERGE-MINED BLOCKS
20%
Secure Self-Custody
Qbit is secured with quantum-resistant P2MR addresses that keep public spend keys hidden until use. When funds are spent, hash-based signatures authorize the transaction through a quantum-resistant spend path.
PRE-SPEND KEY EXPOSURE
Zero
LEGACY KEY EXPOSURE
Zero
A longer horizon for digital value.
Durable value cannot rely on aging assumptions.
Retrofitting turns security into a race across wallets, exchanges, custodians, miners, and users. Some funds move late, and some may never move.Qbit treats post-quantum security as a starting condition, not a future migration plan.
01
Long-lived ownership
Digital value only works if the ownership model is built to last forever.
02
Room to evolve safely
Standard spends stay focused on the post-quantum transaction model, with reserved paths for future soft-fork upgrades as signature technology improves.
03
A post-quantum path for Bitcoin hashrate
Qbit gives SHA-256 miners, pools, and ASIC infrastructure a long-term quantum-resistant blockchain to secure using the stack they already run.
Stateless hash-based signatures.
Read the White Paper
Explore the full Qbit design, including post-quantum signatures, mining, supply, witness accounting, and long-term validation.