Private financial transactions,
enabled by the Sigma Protocol


Why does BLOCKCHAIN have a privacy problem?


In order to solve the “double spending problem”, all transactions must be stored on a public ledger called the blockchain.


Notable studies have shown that the same techniques used to analyze social network topology can be used to analyze blockchains.

Privacy broken

Anyone can use the public ledger to break privacy, including powerful corporations and institutions such as the NSA.



With Zcoin’s Sigma Technology, you can “mint” a coin found on the public ledger into a private coin, breaking any transactional links and ensuring complete privacy


Zcoin has integrated Tor to hide your IP address. Dandelion++ further conceals the IP address when broadcasting a transaction on the network


MTP stands for Merkle Tree Proof. It is Zcoin’s unique Proof-of-Work algorithm with a focus on ASIC-resistance and egalitarian mining for all participants



Did you know?

Zcoin is the first full implementation of the Sigma Protocol, which allows users to have complete privacy via zero-knowledge cryptographic proofs. It is worth noting that Zcoin is unrelated to other cryptocurrencies utilizing the Zerocash Protocol. Although Zerocash is a development from Zcoin’s old protocol Zerocoin, their respective implementations are not simple forks of each other, but rely on different cryptographic assumptions with various tradeoffs. Both approaches supplement each other quite nicely, and a good way to describe them would be sibling projects.

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October 3, 2019 in Development, Zcoin Blog

Enabling Direct Untraceable Anonymous Payments in Lelantus

Zcoin’s privacy comes from its unique mechanism of allowing people to destroy coins and then allow them to redeem them for brand new coins with no previous transaction history which…

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October 3, 2019 in Development

Zcoin Development Update 2 October 2019

Lelantus ‘Self spend’ challenge mentioned in previous update has been solved allowing full direct anonymous transactions which means the protocol now can hide sender, receiver and values. Work done by…

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September 30, 2019 in Announcements

Buy gift cards from 100 over top brands with Zcoin on Bidali

Hot on the heels from our partnership with Travala allowing you to book hotels worldwide with Zcoin, starting from today, those in the US can now use Zcoin to buy…

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September 26, 2019 in Zcoin Blog

Zcoin Partners with Travel Booking Platform Travala.Com

Today are launching their Zcoin integration! is a one-stop travel booking platform which lets you book 1.7 million accommodations in 90,000 destinations worldwide. offer hotel and accommodation…

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