Holographic Invariant Storage: Design-Time Safety Contracts via Vector Symbolic Architectures

arXiv:2603.13558v1 Announce Type: new
Abstract: We introduce Holographic Invariant Storage (HIS), a protocol that assembles known properties of bipolar Vector Symbolic Architectures into a design-time safety contract for LLM context-drift mitigation. The contract provides three closed-form guarantees evaluable before deployment: single-signal recovery fidelity converging to $1/sqrt{2} approx 0.707$ (regardless of noise depth or content), continuous-noise robustness $2Phi(1/sigma) – 1$, and multi-signal capacity degradation $approxsqrt{1/(K+1)}$. These bounds, validated by Monte Carlo simulation ($n = 1{,}000$), enable a systems engineer to budget recovery fidelity and codebook capacity at design time — a property no timer or embedding-distance metric provides. A pilot behavioral experiment (four LLMs, 2B–7B, 720 trials) confirms that safety re-injection improves adherence at the 2B scale; full results are in an appendix.