Common Knowledge Base Association (CKBA) (@ckba_build): A quick read on where the quantum migration conversation sits right now

A quick read on where the quantum migration conversation sits right now What changed A Google Quantum AI paper published on March 31, 2026 significantly lowered the estimated resources needed to break secp256k1, the elliptic curve behind Bitcoin and Ethereum signatures. The estimate dropped to roughly 1,200 logical qubits, or under 500,000 physical qubits on a superconducting machine, which is about 20x lower than previous estimates. Where the timeline sits Justin Drake, Ethereum Foundation researcher and co-author of the paper, puts the odds at at least 10% that a quantum computer can recover an ECC-based private key from an exposed public key by 2030. 50% that Q-Day arrives by 2032. That makes the early 2030s the honest reference point, albeit with wide margins. Why this matters today “Harvest now, decrypt later” is the nearer concern. Adversaries do not need to wait for the hardware to exist. They can collect exposed public keys and encrypted data today, then attack them once quantum hardware catches up. Any public key already exposed onchain, i.e., reused addresses, P2PK and other legacy outputs, etc., becomes part of that calculation. Where CKB sits CKB is one of the few, if not the only genuinely “quantum ready” blockchains. Its flexible and cryptographically agnostic and agile architecture allows developers to permissionlessly deploy any post quantum signature scheme. A SPHINCS+ scheme is already deployed, meaning users can already migrate their assets to quantum resistant addresses using the Quantum Purse wallet.