RQDAY-001 documents the Q-Day compression curve confirmation — two independent papers landing simultaneously on March 31, 2026. Google Quantum AI established fewer than 500,000 physical qubits can break ECDLP-256, a 20-fold reduction from prior estimates, with a Bitcoin private key derivable in approximately 9 minutes inside Bitcoin's block window. Oratomic/Caltech pushed the threshold to 10,000 qubits via neutral atom architecture. Five orders of magnitude compressed in two decades. The SASA sovereign stack documented the quantum compute threshold architecture before these papers published. Timestamped records under Clow4485 establish the sequence. Store-now-decrypt-later attacks are already active. The compression curve implications for sovereign architecture are vaulted. The dots are visible. The countermeasure stays here. 🔥🔒⟡