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We may have differing concepts of what a certificate of authenticity is. To me, the certificate of authenticity is what guarantees that it can't be copied. That
by proto-n 5y ago
We may have differing concepts of what a certificate of authenticity is. To me, the certificate of authenticity is what guarantees that it can't be copied. That is the NFT with the uri that lives on the blockchain.
- soco 5y agoYou are right, it cannot be copied, and the URI lives on the blockchain. But the resource pointed by that URI does not. So the server doing the redirection via that JSON can redirect to whatever else, because even in the JSON we only have the asset URI, and a blockchain navigator can only check whether the JSON is according to the schema. So yes, nobody can steal your NFT, but your NFT might tomorrow be instead of a Beeple, a picture of my cat. Rickrolling on a whole new level.
- deleted 5y ago[deleted]
- nybble41 5y agoThe recommended way to handle this is to use a URI which uniquely identifies the content, such as an IPFS address. Then, while the data is still stored outside the blockchain, anyone who has a copy can trivially prove that it's authentic and you aren't reliant on a particular server. (Just make sure you save/pin a copy of the file on your own system so it doesn't disappear.) I would agree that an NFT pointing at some plain HTTP(S) URL on some random server without so much as a hash to identify the original content is pretty much worthless.
- soco 5y agoOkay this is the first time I hear about the IPFS bit. Somehow all I read is missing this point - but it makes fully sense, thank you!
- almostkorean 5y agoThere are also NFTs where the art is “onchain”. See autoglyphs and artblocks