Implants of titanium micro SD to take to the grave and sharing for thousands of years information with whoever finds the body

 The idea is to create a company dedicated to making implants in bodies in the subcutaneous area of micro SD memory cards with information about their life or whatever the client desires so that once after death and after hundreds or thousands of years whoever discovers the body can access that information that the client wanted to leave in life. 

Just as people tattoo things that have a meaning for them and the tattoo disappears once after death, a titanium micro SD or an ultra-durable material can be implanted so that the client shares the information they want with the possible discoverers of their body thousands of years later. 

It can also be a way to keep information hidden and secure such as a high-value Bitcoin wallet or any document that is of vital importance to keep safe.