Text of Google AdWords that appear at top of search results for certain keywords

Headline 1	Headline 2	Headline 3	Description Line 1
Blockstack - STX Token Sale	Pre-Register Now	Invest	Invest - Blockchain & App Platform that Puts Users in Control of Their Identity & Data
Blockstack - STX Token Sale	Pre-Register Now	Invest	Invest Knowing that Blockstack is Real. 100+ Apps Already Built!
Blockstack - STX Token Sale	Pre-Register Now	Invest	Join the Blockchain Computing Revolution & Invest in the Next Era of Cloud Computing.
Blockstack - STX Token Sale	Pre-Register Now	Invest	Blockstack - The Easiest Way to Start Building Decentralized Blockchain Apps
Invest in the STX Token Sale	Pre-Register Now	Don’t Miss Out	Blockstack - Invest in the Top Platform for Decentralized Apps. 100+ Apps Already Built!
Invest in the STX Token Sale	Pre-Register Now	Don’t Miss Out	The Stacks Blockchain Will Provide a Fast, Scalable Distributed Ledger for Identity.
Invest in the STX Token Sale	Pre-Register Now	Don’t Miss Out	By Utilizing Stacks, Developers Let Users Maintain Ownership of Their Data.

Rule 255 legend on homepage of stackstoken.com, the website to which each of the ads above are linked:

This communication may be deemed “testing the waters” material under Regulation A under the Securities Act of 1933. This process allows companies to determine whether there may be interest in an eventual offering of its securities. We are not under any obligation to make an offering under Regulation A. We may choose to make an offering to some, but not all, of the people who indicate an interest in investing, and that offering might not be made under Regulation A. If we go ahead with an offering, we will only be able to make sales after we have filed an offering statement with the Securities and Exchange Commission (SEC) and the SEC has “qualified” the offering statement. The information in that offering statement will be more complete than the information we are providing now, and could differ in important ways. You must read the documents filed with the SEC before investing.

No money or other consideration is being solicited, and if sent in response, will not be accepted. No offer to buy the securities can be accepted and no part of the purchase price can be received until the offering statement filed by the company with the SEC has been qualified by the SEC. Any such offer may be withdrawn or revoked, without obligation or commitment of any kind, at any time before notice of acceptance given after the date of qualification.

An indication of interest involves no obligation or commitment of any kind.

Any person interested in investing in any offering of Stacks Tokens should review our disclosures and the publicly filed offering statement relating to that offering, a copy of which is available on this website.

You may obtain a copy of the preliminary offering circular that is part of that offering statement at stackstoken.com.

Blockstack is not registered, licensed or supervised as a broker dealer or investment adviser by the Securities and Exchange Commission (SEC), the Financial Industry Regulatory Authority (FINRA) or any other financial regulatory authority or licensed to provide any financial advice or services.