This document records the author's priority in proposing the concept of superluminal communication based on the Infinite-Dimensional Multiverse Model (IDMM). The idea was first formulated on May 20, 2026, in a dialogue with the AI assistant DeepSeek, in response to a question about practical applications of IDMM for interstellar travel. The concept proposes using the neighbouring brane A1 (galactic coordinates l=120°, b=–30°) as a relay reflector. A signal transmitted from Earth toward A1 leaves our brane, enters the surrounding 5‑dimensional bulk, reaches brane A1, is reflected, and returns to another point on our brane (e.g., Jupiter). Due to a geodesically shorter path in curved bulk, possibly higher propagation speed in the bulk, or quantum tunnelling, the theoretical delay could be reduced from 33–53 minutes to microseconds or milliseconds. This document is not a full scientific article, contains no engineering details, and is deposited solely to establish temporal priority (May 20, 2026). A more detailed exposition, including a literature review and comparison with the work of Benakli (2026) and others, is presented in a separate article deposited on June 14, 2026. The author states that the principal possibility of inter‑brane superluminal communication was first formulated by him on May 20, 2026, and invites physicists and engineers to collaborate on further development of the concept.
Alexander Yourievitch Kotelnikov (Sun,) studied this question.