This paper tests a specific, falsifiable hypothesis: under standard quantum mechanics, measurement order on sender qubits cannot produce statistically distinguishable distributions on receiver qubit measurements. Any decoder operating solely on receiver statistics should achieve only chance accuracy (50%). To test this, we designed and executed experiments on real quantum hardware (IQM Garnet and Rigetti Ankaa-3 via AWS Braket). Using 8-qubit W+GHZ entangled structures, we encoded binary information by varying collapse order on sender qubits and decoded by measuring receiver qubit statistics. Results contradict the null hypothesis: 100% classification accuracy (10/10 bits correctly decoded) 23σ statistical significance (χ² = 548.45, p = 2.74×10⁻¹²¹) Cross-platform replication on Rigetti Ankaa-3 (5σ) Control experiments without entanglement: 50% accuracy (random chance) Witness qubits rule out electromagnetic crosstalk The protocol parameters (topology, collapse-order mapping, decision threshold) were pre-specified in July 2025—six months before hardware validation—eliminating post-hoc tuning concerns. Supplementary materials S1 and S2 document this timeline with SHA-256 hashes. These results demonstrate that collapse-order information can be encoded and decoded within entangled quantum systems, implementing a semantic communication protocol that requires entanglement and cannot be explained by standard quantum mechanics combined with calibrated device noise. Archive includes: complete manuscript, Jupyter notebook with experiment code, raw JSON results from AWS Braket tasks, prior protocol documentation (S1), and hardware-calibrated simulation suite (S2).
David Michael Goddard (Fri,) studied this question.