1. The genuine signature database is constituted totally by genuine signatures.

2. The top row shows how a person's genuine signature produces the same "lily" every time.

3. With your genuine signature and these two keys, you can open your box.

4. C2:Yes, you will. Any check we cash must have a genuine signature. But we keep a file of them that you can refer to.

5. A second detector in a different location would help distinguish background noise from a genuine signature.