Jan 19, 2026
What BTQ’s Bitcoin quantum testnet reveals about “old BTC” risk

How BTQ’s Bitcoin-like quantum testnet highlights where post-quantum risks may emerge and why mitigation is an engineering challenge.
Bitcoin’s quantum risk centers on exposed public keys and signature security.
BTQ’s testnet explores post-quantum signatures in a Bitcoin-like environment.
Post-quantum signatures significantly increase transaction size and block space demands.
Source: Cointelegraph →Related News
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