First, you are asking for legal advice. Stop now and walk away from the website. Talk to a lawyer. Do not listen to a storm of layman opinions, all of which are almost certainly wrong.
Second, if you're still reading this, there is no such thing as "IP" in the law. There are copyright, patents, trademarks, trade secrets, and possibly a few other things. They are not the same, and disclosure has radically different effects on them. The laws vary from country to country.
Third, it sounds like you're talking about a patent. If so, whatever you do, do not disclose any of it or show work derived from your neato idea until you have talked to a lawyer. Timestamps are the least of your worries, what you really need to care about is killing your chance at the patent before you even get out of the gate. The rules vary by country, and the standards for disclosure vary by country.