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How Banksy Authenticates His Work

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Re: How Banksy Authenticates His Work

#4
There’s nothing cryptographic about this. It’s a central authority that either says “yes it’s real” or not. The system revolves around trust in that central authority. Everyone can easily fake a certificate which cannot be independently falsified without asking that central authority, who will be more likely to check their books than to do anything related to the actual certificate.

Re: How Banksy Authenticates His Work

#9
post #4

There’s nothing cryptographic about this. It’s a central authority that either says “yes it’s real” or not. The system revolves around trust in that central authority. Everyone can easily fake a certificate which cannot be independently falsified without asking that central authority, who will be more likely to check their books than to do anything related to the actual certificate.

Does cryptographic imply decentralized?

Re: How Banksy Authenticates His Work

#10
post #4

There’s nothing cryptographic about this. It’s a central authority that either says “yes it’s real” or not. The system revolves around trust in that central authority. Everyone can easily fake a certificate which cannot be independently falsified without asking that central authority, who will be more likely to check their books than to do anything related to the actual certificate.

Does cryptographic imply decentralized?

No, but I think you'll agree that saying tears in a piece of paper "cryptography" is a stretch. It's not cryptography in the same way that a stamp or wax seal isn't cryptography, unless your definition of cryptography is "any method to protect the confidentiality and integrity of a document".
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