Claim Verification: "Quantum entanglement enables the transmission of usable information faster than the speed of light when the distant parties pre-agree on a measurement basis." — Disproved

Automated fact-verification of the claim: "Quantum entanglement enables the transmission of usable information faster than the speed of light when the distant parties pre-agree on a measurement basis." Verdict: DISPROVED Key Findings The no-communication theorem in quantum mechanics mathematically proves that no local measurement on one half of an entangled pair can transmit information to the other party, regardless of spatial separation (B1). Pre-agreeing on a measurement basis does not help: each party's local measurement outcomes remain statistically random (50/50); correlations only emerge when results are compared via a classical, light-speed-limited channel. 4 out of 4 independent authoritative sources confirm that entanglement cannot be used for faster-than-light information transfer (B1, B2, B3, B4). No experiment has ever demonstrated superluminal information transfer using quantum entanglement (B3). Files proof.py — Re-runnable Python verification script proof.md — Structured proof report proof_audit.md — Full verification audit trail proof_narrative.md — Plain-language summary proof.json — Machine-readable structured data Generated by Proof Engine v0.10.0.