Zcash is a decentralized, open source cryptocurrency developed based on the Paper Zerocash Protocol released at IEEE Conference 2014. It adopts zero-knowledge proof and multiple account mechanism to guarantee the anonymity of transactions. Like Bitcoin, there are 21 million Zcash tokens (ZEC), but they are more focused on privacy and transparency. Specifically, the public blockchain encrypts the sender, receiver and trading volume in the transaction record; Users can choose whether to provide the viewing key to others at their discretion, and only those who have this key can see the content of the transaction.

The validity of transactions can be verified without exposing sensitive information, relying on zK-SNARK zero-knowledge verification. Solve the problem of pseudo anonymity on bitcoin. On the COINS network, although both parties are not revealed his true identity, but all the transactions are can query on block chain, then it is let back to from a deal on a deal, if the sender send deal repeatedly use the same address, will be block chain back to prove to certain transactions made by the same person.

As the originator of the true anonymous coin, zcash is bound to have a certain proportion of demand. But its influence in the coin community is actually declining, and it is facing a lot of competition from new anonymous coins

Zero-knowledge proof mechanism, ZEC can prove knowledge of the secret without disclosing the content of the information itself.

One of the biggest applications of ZEC is anonymous transactions, where it can hide the addresses of both parties and the amount of the transaction

Consensus algorithm: PoW, SHA256 proof of workload

MTP core algorithm, anti-asIC, biased CPU mining, to prevent power monopoly. MTP also makes it possible for lightweight hardware devices such as smartphones to perform mining authentication, which is impossible with other algorithms. The consensus mechanism is better than XMR, and the system security is still not as perfect as DASH.

Zk-snark zero-knowledge proof technology: Even if the source and flow of money is completely secret, zero-knowledge proof technology can still verify that users who spend money actually have money. Public Blockchain: Zcash uses a public blockchain to display transactions, but it automatically hides the amount of the transaction. ZEC holders can view the key to see the associated information.

The token mechanism of ZEC: 1. The total amount is 21 million. 2. Distribution mechanism. Miners 90%, teams, investors, consultants 10%. 3. No additional issues or repurchases. 4. Halve output every four years.

Zcash has an all-star team of engineers, mathematicians and cryptographers, including Architect Eli Ben-Sasson, founder and CEO of Zooko Wilcox; Advisers include Ethereum founder V God and Gavin Andresen, one of the early bitcoin developers.

Over the next 4 years, 80% of what Zcash digs will be distributed to miners, 5% to the Zcash Foundation, 7% to ECC and 8% to independent third parties to improve Zcash.

The three major anonymous coins are: Monrocoin, Dachecoin, and Zcash. ZEC's main competitors are Monrocoin and Dachecoin.

Zcash is another implementation of the Zcash protocol, but the implementation has been a mess, not to mention the early bugs, but more recently. And Zcash pain points that is unable to effectively audit, when a project is more and more complex, the problem of risk will be on the rise, even COINS this upgrade so careful project at the end of 2018 also reported bugs affecting fixed circulation, unlimited COINS ZEC, do the project of the existence and the possibility of unknown, Is it blind confidence or is it insane to dare to do this? What's more, the new ZK-Snarks makes the underlying principles of ZEC's cryptography almost impossible to peer review, and is itself called company coin by the market, a coin that can't be trusted can't go very far

Zcash is one of the three anonymous coins along with Darth and Monroe, but Zcash is the first blockchain system to use zero-knowledge proof, providing complete payment confidentiality while still maintaining a decentralized network using a public blockchain. Like Bitcoin, the total number of Zcash tokens (ZEC) is 21 million, but Zcash transactions automatically hide the sender, receiver and amount of all transactions on the blockchain. Only those with a viewing key can see the contents of the transaction. The user has complete control and can choose to provide the viewing key to others. Once crazy big zcash, big zcash is the only digital currency in history that has ever surpassed bitcoin in price. Because in the genesis block is not yet born, already people attention, starlight is bright. It is said to be so hot that Zcash's futures on Bitmex are trading as high as about $1,400, even before mining has begun. At that time, there were many people who were scared to lose their chin and slap their thighs. Big zero currency to a tender model of a currency, a villa reflected incisively and vividly.

Problems existing in Zcash 1. Firstly, due to the huge amount of proof information, a large amount of CPU is needed to sign transactions, resulting in low efficiency in the expansion of the project. 2. The strong anonymity of anonymous currency will bring regulatory problems. In order to meet the requirements of compliance, some exchanges have started to remove anonymous digital currency. 3. At present, the demand for anonymity in the coin circle is not very large, and it is uncertain whether it can drive up the price of currency in the future. 4. The problem of centralization is serious. Although Zcash uses the POW model, its project team is corporatized and 20 percent of the profits for the first four years go to the six founders. This has led many miners to complain that it is far less decentralized than Monroe and DACHecoin.

Zcash is the first blockchain system that uses zero-knowledge proof mechanism. It can provide complete payment confidentiality, while still maintaining a decentralized network using public blockchain. It is a branch of Bitcoin. Retain the original bitcoin mode, based on bitcoin 0.11.2 version of the code modified.