[amackera]

What's stopping you from taking a picture of a painting and hanging the painting in your house?

There's nothing stopping you, but your print is worthless and the original is valuable.

The fact that the NFTs use the ETH blockchain makes it decentralized. A single authority issuing NFTs would be centralized.

[singold]

I understand the decentralized nature of the blockchain, but couldnt I mint the same painting on multiple blockchains?

I'm not an expert, but I can see the value on cryptocurrencies and ETH and all the smart contract tech. But I can't see the same value on NFTs, as more than speculation.