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Zerocoin is a privacy protocol proposed in 2013 by Johns Hopkins University professor Matthew D. Green and his graduate students, Ian Miers and Christina Garman. It was designed as an extension to the Bitcoin protocol that would improve Bitcoin transactions' anonymity by having coin-mixing capabilities natively built into the protocol.
On 30 July 2019, Zcoin formally departed from the zerocoin protocol by adopting a new protocol called "Sigma" that prevents counterfeit privacy coins from inflating coin supply. This is achieved by removing a feature called "trusted setup" from the zerocoin protocol. [31]
In 2019, Firo implemented the Sigma protocol, which is an improvement on the Zerocoin protocol without trusted setup. [26] [14] In the same year, Firo introduced the Lelantus protocol, an improvement on the Sigma protocol, where the former hides the origin and amount of a transaction. [27]
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In the empirical sciences, the so-called three-sigma rule of thumb (or 3 σ rule) expresses a conventional heuristic that nearly all values are taken to lie within three standard deviations of the mean, and thus it is empirically useful to treat 99.7% probability as near certainty.
The Electric Coin Company (formerly ZCash Company or Zerocoin Electric Coin Company) is facing a breach of contract suit from one of its employees to the tune of $2 million dollars.The post Zooko ...
[10] [11] [12] More concretely, to mint (create) a Zerocoin, one publishes a coin and a cryptographic commitment to a serial number with a secret random value (which all users will accept as long as it is correctly formatted); to spend (reclaim) a Zerocoin, one publishes the Zerocoin's serial number along with a non-interactive zero-knowledge ...