What is cBTC?
A quantum-safe 1:1 copy of your Bitcoin. You have 2 BTC — you get 2 cBTC. The same coins, but on a blockchain immune to quantum attacks.
01 cBTC · Quantum-safe Bitcoin
cBTC — Quantum-Safe Bitcoin
cBTC is a post-quantum 1:1 copy of your BTC on the Cellframe blockchain. Bridge in one click — and your coins are protected by the next generation. No waiting for Bitcoin Core.
02 Threat
The quantum threat is no longer theoretical
Quantum computers will break Bitcoin's cryptography within 2–9 years. This isn't a forecast — it's a reality the market is already pricing in:
20% Bitcoin quantum discount today
58% projected by 2028 (Capriole)
$470B+ capital in exposed UTXOs (est.)
2–9 yrs threat horizon for ECDSA
«"We will walk away from Bitcoin if the thesis is fundamentally broken"»
— Van Eck (Nov 2025)
«added quantum risk to BTC ETF risk disclosures»
— BlackRock (May 2025)
«cut BTC allocation by 10% and shifted to gold»
— Jefferies (Jan 2026)
«Bitcoin's Quantum Discount is already 20% and projected to reach 58% by 2028»
— Capriole Research
References to organizations cite public statements and market context — not partnership or endorsement.
4.5–6.8 million BTC (over $470B) are already vulnerable — their public keys are exposed. Bitcoin Core has not prioritized a fix: BIP-360 remains a draft, with no code and no timeline. Key champions of post-quantum work (Peter Wuille) have left Bitcoin Core, and progress has stalled.
03 Solution
cBTC in four simple answers
No magic. No risk. Full control over your assets.
Why do I need it?
Quantum computers will be able to break ECDSA and steal BTC from any address with an exposed public key. cBTC uses next-generation cryptography (NIST-standard) — quantum computers can't crack it.
How do I get it?
Bridge your BTC to your cBTC address. Your BTC enters a shared quantum-resistant pool on the Bitcoin protocol, and you receive cBTC 1:1 on Cellframe. Done in minutes.
What happens to my BTC?
They enter a shared quantum-resistant pool on the Bitcoin protocol that backs your cBTC 1:1. The pool is controlled not by a single custodian, but by a distributed set of Cellframe validators — the same ones that secure cBTC itself. Bridge either way, anytime.
04 Advantages
Why cBTC, not wBTC, and not waiting for Bitcoin Core
Not a fork. No single custodian. Not a Bitcoin replacement — protection you need right now.
01 · PRIMARY cBTC
- Quantum protection
- NIST-standard (Dilithium, FALCON, SPHINCS+)
- Time to protection
- 6–8 months to mainnet
- Custodial risk
- Distributed bridge run by Cellframe validators — no single custodian
- Algorithm agility
- Hot-swappable, no hard fork
- PQC performance impact
- 0% — native PQ architecture
- Native use
- Wallet, DEX, vaults, smart contracts
02 · ALT wBTC
- Quantum protection
- None — same vulnerable keys
- Time to protection
- Never
- Custodial risk
- Single custodian, single point of failure
- Algorithm agility
- None
- PQC performance impact
- N/A
- Native use
- DeFi on EVM chains
03 · CANONICAL Bitcoin Core
- Quantum protection
- BIP-360 — draft with no code
- Time to protection
- 2–3 years (optimistic)
- Custodial risk
- N/A
- Algorithm agility
- Hard fork for every change
- PQC performance impact
- 60–70% throughput loss (estimated)
- Native use
- Minimal
05 No lock-in
Every cBTC is backed by real BTC
Transparent 1:1 backing and full reversibility through the bridge.
- Full 1:1 backing. Every cBTC issued is backed by real BTC in the shared quantum-resistant pool — verifiable on-chain at any time.
- No single custodian. The pool is partitioned across many independent vaults and secured by Cellframe PoS validators — the same ones that secure cBTC itself.
- Full reversibility. A two-way cBTC → BTC bridge is the next phase after mainnet — so you can always return to classic BTC.
You are not locked into a new asset: cBTC is a safe haven with transparent backing and a reversible exit.
06 Technology
Cellframe — a blockchain born post-quantum
Not a concept, not "we'll add PQC later." Production infrastructure since 2021:
Quantum-safe from the ground up — built specifically for post-quantum cryptography, not retrofitted from legacy code
Certified algorithms — NIST-approved standards (U.S. National Institute of Standards and Technology)
Hot-swap algorithms — if one becomes vulnerable, the network switches to another with no downtime and no user-side updates
Scalable — the architecture grows without losing speed even with quantum-resistant signatures
Full performance — other blockchains lose 60–90% of speed when moving to post-quantum cryptography (Solana lost 90% in tests, April 2026). Cellframe runs at full speed because it was built for this from day one
07 Either way
cBTC wins in either scenario
SCENARIO A
If Bitcoin doesn't upgrade in time
cBTC is the only actionable quantum hedge for BTC holders. A ready candidate to become the canonical PQ-Bitcoin.
SCENARIO B
If Bitcoin upgrades to PQC
Post-quantum integration will cut Bitcoin's throughput by 60–70% (JBBA, 2026) and push fees higher. Cellframe keeps full speed and low fees — and becomes the natural venue for DEXs, trading and apps around Bitcoin liquidity.
Either way, Cellframe's structural advantage is yours.
08 Audience
Who cBTC is for
If you hold BTC, this is for you
[01] BTC holders Bridge in one click. Quantum protection in minutes, without selling your BTC.
[02] Funds and large holders Quantum risk is already a due diligence item for institutions. cBTC is a ready answer.
[03] Treasuries and custodians Institutional vaults, reporting, and an auditable bridge-and-backing model.
[04] Exchanges A hedge product for clients who want to keep BTC exposure without quantum risk.
09 Roadmap
A clear path to protecting your BTC
Specific milestones. Verifiable results. No "someday."
01
Month 3–4 Testnet + BTC → cBTC bridge Test the bridge flow on synthetic data
02
Month 4–5 Independent security audit Open report on cryptography, bridge and backing logic
03
Month 6–8 Mainnet: inbound BTC → cBTC bridge Bridge BTC and receive cBTC 1:1
04
Month 6–12 Native utility: DEX and vaults cBTC becomes a fully usable working asset
05
next phase Two-way cBTC → BTC bridge Direct redemption of cBTC back into BTC
10 Now
Why act now
The window is open — and it will close
- **Bitcoin's quantum discount is already real** and growing
- **Institutions are already moving** — this is no longer theory, it is capital flow
- **Bitcoin Core is standing still** — BIP-360 remains a draft, key PQ champions have left Core
- **The "quantum-safe Bitcoin" category is still open** — and not for long
- **The NSM-10 federal deadline (April 2026)** creates systemic urgency for migration
- **Every month of Bitcoin Core inaction** widens our advantage
11 FAQ
Frequently Asked Questions
Is this a Bitcoin fork?
No. cBTC is a separate product on the post-quantum Cellframe blockchain. No competing chain, no miners. You bridge BTC and receive a parallel quantum-safe asset 1:1.
Why do I need this if Bitcoin can upgrade?
Even the optimistic scenario is 2–3 years of waiting. And PQC integration will cut Bitcoin throughput by 60–70%. cBTC protects you now and stays useful later.
Do I have to trust anyone with my BTC?
Not a single person, not a single company. The bridge runs on a distributed set of Cellframe PoS validators — the same ones that secure cBTC itself. Funds are split across many independent vaults with velocity limits — compromise of one link does not affect the others. And every cBTC is always backed by real BTC in the pool — verifiable on-chain.
How much does it cost?
Only the Bitcoin network fee and a small bridge fee — no hidden charges. No selling, no exchange swap.
What if the quantum threat is delayed?
A delayed Q-Day doesn't remove the risk — it only increases awareness and extends the migration window. Cellframe's speed and low fees are an advantage in any scenario.
12 Document
Whitepaper
Architecture, the bridge-and-backing model, post-quantum cryptography — no fluff, no marketing. Request the full paper and press materials at the address below.