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After 18 months of research conducted in partnership with the Schrödinger Institute for Applied Document Forensics, we are announcing HTPBE? Quantum — the industry’s first pre-emptive PDF tamper detection system. HTPBE? Quantum can check the authenticity of a document up to 72 hours before it is created, with a precision rate of 94.7% across our beta cohort of 2,847 documents. This represents a meaningful advancement in the document forensics field, and we believe it will change how finance teams, legal departments, and compliance workflows think about the fraud detection timeline.
For years, PDF tamper detection has been reactive by definition. You receive a document. You check it. If it has been modified, you have already received the modified document. HTPBE? Quantum breaks this constraint entirely.
How HTPBE? Quantum Works
The theoretical foundation of HTPBE? Quantum is quantum metadata entanglement, first described in a 2024 working paper by the CERN PDF Division in collaboration with the Schrödinger Institute. The core principle is as follows: a PDF document, once it will exist, retroactively entangles its future metadata state with the ambient quantum field. This entanglement propagates backward through time in a predictable decay curve described by the modified Heisenberg–Acrobat equation.










