Q-Day / Cryptographically-Relevant Quantum Computing — Cryptographic Substrate-Tier Threat to the Settlement Layer + Gated-Capability Bifurcation

HIGHBlind spots: Q-Day is the cryptographic substrate-tier constraint on the 2032 Settlement-Layer collapse (not a falsification — convergence with crypto_coordination substrate-handoff); CRQC arrives state-gated (9-firm $2B equity + IBM $1B foundry) mirroring AI Capability Bifurcation, not as a public event; Gidney 2025 collapsed RSA-2048 to <1M qubits (deletes NISQ buffer); ECC/secp256k1 falls before RSA (<=1,450 logical qubits) so digital assets break first in waves; HNDL already compromises pre-2030 data; CNSA 2.0 forces 2030 migration into the strain window; freeze-vs-crash 2032 failure-mode parked at the adversarial-test gate.

In plain terms

R-QDay integrates the Quantum-Impact Deep Research report (30 primary-sourced findings; 4 ACCELERATE / 1-as-divergence / 3 NEWLY-GATE / 6 UNCHANGED across 2026-2040).

Analysis

R-QDay integrates the Quantum-Impact Deep Research report (30 primary-sourced findings; 4 ACCELERATE / 1-as-divergence / 3 NEWLY-GATE / 6 UNCHANGED across 2026-2040). The engine's 2032 collapse is EXPLICITLY a Layer-2 Settlement-Layer event (Report #72: BlackRock's Aladdin algorithm rho->1.0 triggers correlated liquidation transmitted through DTCC's $2.2-3.7Q/yr netting + Euroclear + cross-margining), with crypto_coordination_substrate_candidate as the pre-committed substrate-handoff. Q-Day is therefore the CRYPTOGRAPHIC substrate-tier constraint on that window, added as a 2032 sub-section matching the R93-R98 'Inside 2032 Window' pattern. CAPABILITY: Gidney 2025 (arXiv 2505.15917) factors RSA-2048 in <1 week with <1M noisy qubits (~20x collapse from 2019) via Regev-style reversible Fibonacci uncomputation + yoked surface codes; Willow demonstrates below-threshold dynamic surface codes (exponential error suppression); Google estimates secp256k1 at <=1,450 logical qubits — ECC falls before RSA, so Layer-1 crypto assets break first. Vendor convergence 2028-2030 (IBM Starling 200 logical 2029; Quantinuum 2030; PsiQuantum ~1M photonic 2027; neutral-atoms ~26k physical for P-256). GATING: the $2 billion 9-firm equity (IBM $1 billion 'Anderon' foundry) pre-captures CRQC as a classified state asset — the quantum instantiation of the AI Capability Bifurcation / Compute-Trust Layer. DEFENSE: NIST FIPS 203/204/205, CNSA 2.0 (exclusive PQC by 2030), the Securities and Exchange Commission (SEC) PQFIF, BIS (the Bank for International Settlements) Project Leap (sovereign rails survive; retail/DeFi isolated). HNDL retroactively compromises the 2028 Davidson-window data. The 2032 freeze-vs-crash failure-mode question is parked as a SYNTHESIS-CANDIDATE divergence at the adversarial-test gate — NOT a prediction rewrite. Bound-LLM mediation explicitly held high (Google owns Gemini + Willow + employs Gidney): Google-origin timeline claims weighted at a higher evidence bar. Engine canon preserved: no Layer-1 promotion; Phoenix recursion untouched; Apex (a)/(b)/(c)/(d) held per finding. [Live pass Jun 22 2026] FEDERAL PQC DEADLINE ACCELERATED: Jun 22 Trump's 2nd quantum EO moves the US post-quantum-cryptography adoption deadline 2035 -> Dec 2031 (a 4-yr acceleration), reigniting the Bitcoin/ECDSA quantum-risk debate (Shor / harvest-now-decrypt-later) — though NO cryptographically-relevant quantum computer exists yet (RSA/ECC unbroken; Shor-capable machines still projected ~2030-2035). The cryptographic-substrate-threat clock this row tracks, now with a faster federal migration mandate.

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