by On Coin Center’s blog, Matthew Green and Peter van Valkenburgh write: Censorship resistance is the only way to guarantee that a digital asset truly is “bearer” and can be sent directly from one person to another without reliance on a third party. Cryptocurrencies achieve this property by making network participants (miners) compete for the power to add transactions to the ledger. Even if some miners wish to censor a transaction, we assume that others will not, particularly if it means they are forgoing fee revenue. A centralized digital dollar would not have competitive mining but if the role of the ledger-keeper was reduced to verifying zero-knowledge proofs then any refusal to perform that verification risks indiscriminately censoring users throughout the economy. If the Treasury
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Dirk Niepelt considers the following as important: Bearer security, Cash, Censorship, Central bank digital currency, Crypto currency, Notes, Privacy, Zero-knowledge proof
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On Coin Center’s blog, Matthew Green and Peter van Valkenburgh write:
Censorship resistance is the only way to guarantee that a digital asset truly is “bearer” and can be sent directly from one person to another without reliance on a third party. Cryptocurrencies achieve this property by making network participants (miners) compete for the power to add transactions to the ledger. Even if some miners wish to censor a transaction, we assume that others will not, particularly if it means they are forgoing fee revenue. A centralized digital dollar would not have competitive mining but if the role of the ledger-keeper was reduced to verifying zero-knowledge proofs then any refusal to perform that verification risks indiscriminately censoring users throughout the economy. If the Treasury became corrupt, it could degrade the performance of the network system-wide, but it would be difficult to selectively block certain individuals or surveil their activities.
None of these protections, however, are guaranteed, and new technologies always present unpredictable risks and unintended consequences. We must, therefore, preserve and defend physical cash and should never celebrate its demise. Cash, along with cryptocurrencies, is essential as a payment method of last resort that cannot be surveilled or controlled by corrupt governments or unscrupulous corporations.