• @[email protected]
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    011 days ago

    There isn’t a way to verify if there isn’t another copy of an NFT on the blockchain.

    Incorrect. An NFT is tied to a particular token number at a particular address.

    The URI the NFT points to may not be unique but NFT is unique.

    • @[email protected]
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      011 days ago

      The NFT is only unique within the contract address. The whole contract can be trivially copied to another contract address and the whole collection can be cloned. It’s why opensea has checkmarks for “verified” collections. There are a unofficial BoredApe collections which are copies of the original one.

      • @[email protected]
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        011 days ago

        Yes, the URI can point to the same monkey jpg. But a different contract address means it is a different NFT.

        • @[email protected]
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          011 days ago

          Completely agree, but the guy I responding to thinks the monkey jpeg is unique across the whole blockchain, when that isn’t true. The monkey jpeg can be copied. There’s no uniqueness enforced in a blockchain.

            • @[email protected]
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              011 days ago

              Right, it’s a link to the JPEG. Either way, the point still stands, there’s no mechanism in the blockchain to prevent duplicate content or enforce uniqueness of what the NFT points to. The NFT token is unique within its contract, sure, but that doesn’t stop someone from deploying a near-identical contract with the same media and metadata. That’s the issue, the blockchain doesn’t know or care if the same JPEG is being reused in other collections.

              • @[email protected]
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                011 days ago

                The NFT token is unique within its contract and since the contract had a unique address the NFT pointer is unique. Include chainID in the description and the NFT is globally unique.

                • @[email protected]
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                  011 days ago

                  That’s true, the (chainID, contractAddress, tokenID) can be globally unique. But that doesn’t solve the original concern, it doesn’t prevent content duplication.

                  • @[email protected]
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                    011 days ago

                    The method for unique content is to reference the chainID, Address and token number in the content itself (I.e. in a metadata field). This approach works well for legal documentation, but could equally be applied to monkey pictures (although it usually isn’t).