No, you can’t. You can pretend to, but I can pretend to trade things with anyone without paying any money. The only thing stored on the Blockchain is a URL to an image which everyone just agrees to pretend that you own; if that server goes down, you have nothing.
You can definitely swipe up on a notification to make it go away without dismissing it.
Honestly, just make this habit: whenever you see a non-actionable notification, before you swipe it away, long press it and hit “turn off notifications.” Then you can go through that app’s list and choose the ones you need—or turn the app’s notification off completely!
For ones you want to show up, but don’t want interrupting you, switch their delivery to Silent and Minimized.
Be ruthless with your notifications. You’ll feel a lot better.