Collecting crypto stamps typically involves buying, trading, or receiving them as a reward or incentive from blockchain-based marketplaces or platforms. Here are some general steps to help you get started:

1. Choose a blockchain-based marketplace or platform that offers crypto stamps. Examples include OpenSea, Rarible, and SuperRare.

2. Create an account on the platform and connect a compatible cryptocurrency wallet that supports the type of crypto stamps you want to collect.

3. Browse the marketplace or platform to find crypto stamps that interest you, and make sure to read the description, ownership history, and other relevant details before making a purchase.

4. Buy or trade for the crypto stamps using cryptocurrency. The price of each stamp will depend on various factors, such as rarity, demand, and market conditions.

5. Once you own the crypto stamps, you can store them in your digital wallet or display them on the platform for others to see. Some platforms also offer features such as bidding, selling, or renting out your stamps to other users.

Keep in mind that collecting crypto stamps, like any other form of collecting, requires research, patience, and careful consideration of your goals and budget. It is important to do your own due diligence and understand the risks and benefits involved in investing in digital assets.