How do I get my member card and what is it for?

I signed up and see a card with my handle and a number. Where did it come from? Is it a certificate, a collectible, an ID? I do not want to misunderstand what I have.

Also, can I show it on other sites?

Short answer: it is the YU Network member card, generated for every member when you join. It is a friendly keepsake of the forum, not an ID, not a passport and not a financial instrument.

Design note from me: the number is your join order, the shine is cosmetic, and the card is rendered from your public profile only. Nothing hidden in it.

Thanks, that is exactly the clarity I needed. So no wallet attached. Good.

No wallet, no keys on the card. When portable identity arrives in YU Connect it will be a separate thing with a separate backup flow, and you will be asked clearly.

I screenshotted mine and set it as a lock screen for one day. Does that count as official use? (joke)