WITNESS-3 — Cosmic Beacon: CHSH Bell + NIST + LIGO/GWOSC Fused Authorization Nonce

WITNESS-3 "Cosmic Beacon" — Remnant Fieldworks Inc. ExecutionProof research program. Fuses three independent, publicly re-verifiable physical witnesses into a single ExecutionProof authorization nonce: CHSH Bell-inequality violation measured on a real IBM QPU (certifies quantum non-classicality AND seeds the nonce) NIST public Randomness Beacon pulse (timestamped, signed random value) LIGO/GWOSC gravitational-wave data (GW150914, byte-exact open astrophysical data) Execution: Job d9dvul2neu4c739nrdl0, backend ibm_fez, 8000 shots (4 CHSH settings × 2000) CHSH Bell Test: S = 2.545 ± 0.0345 → 15.8 σ above classical bound → Bell-certified = TRUE External Witnesses: NIST Beacon pulse #1865471 (2026-07-18T22:31:00Z) LIGO/GWOSC GW150914 H1 strain, 4096 samples @ offset 65536, file SHA-256 66c4b196... Cosmic Nonce: 6876050a7f8ebadf79b1bd702346ae42563019725c03d29bd8d26dadc8c7f686 Record Hash: 858ffd49fd7517fd58ef242226bd7c680bb5db5850a34256fedffd76df0f1caf Verdicts (all PASS): CaseDescriptionVerdict W3-C4CHSH Bell certification✅ PASS (S=2.545, 15.8σ, bell_certified=true) W3-C2Tamper detection (6 sub-trials)✅ PASS (all forgeries detected) W3-C3Replay prevention (2 sub-cases)✅ PASS (both denied) W3-C1Honest verify (13 checks)✅ PASS (provider job found, counts match) Honesty Bounds: NOT loophole-free (neighboring transmons, no spacelike separation). NOT device-independent (fair-sampling, no-signalling assumed). Astro witness is provenance only (NOT a detection claim). Findings bound to tested backend/qubits/calibration/shots. Harness Fix (post-lock, disclosed): FIX-W3-1 (submit_job.py line 63): channel="ibm_quantum_platform" → "ibm_cloud" to match working IBM endpoint for open-instance. Covenant: outcomes preserved as measured; claims bounded to the tested conditions. Research experiment demonstrating verifiable-provenance quantum-sourced nonces — NOT legal, patent, security, or production certification. Soli Deo Gloria.