Back to the coin circle, the most talked about recently is of course anonymous mining coins. Whether it is to return to the essence or to pay tribute to BTC, the essential core is that anonymous coins have undoubtedly become a complete industrial chain in the current blockchain project, from B-end technology development and community development to C-end users.

Recently, the serious metadata leakage of ZCASH large coins was exposed, which allowed the sender to obtain the IP address of the receiver, and almost all zcash forked coins were affected. As we all know, zk-SNARKs, after the zero-knowledge proof was first realized, was called anonymous three musketeers with Monroe and Dash. With a market value of 300 million dollars, it plays an extremely important role in the development of anonymous technology. However, Zcash seems to have been living under the aura of Dash and Monero, and the number of active addresses in the chain, transaction volume and other indicators are behind people. With grin & The rising star MW technology represented by Beam has also launched an impact; Ethereum, the second largest public chain, has repeatedly demonstrated its ambition to adopt zk-SNARKs technology.

Of course, what worries us most about Zcash is the issue of 20% capital withdrawal. Embarrassed, the development company has been unable to make ends meet, and it is foreseeable that there will be a survival crisis after the mining tax is halved next year. There are talented people in Jiangshan, each leading the way for hundreds of years, and the stage of technical competition never stops. Maybe Zcash did not act and lost the mining tax in all directions, but its main similar function is to take advantage of the fork coin!

First of all, Ernst & Young, on behalf of David Byrd, exposed the shortcomings of Zcash, bluntly saying that it has the problem of low utilization rate of privacy transactions, and the cost of privacy transactions with Zcash is quite expensive, which also makes most transactions on Zcash not use zk-SNARKs technology.

Then Tim Davis, the head of Deloitte's "chain reform" business, directly called "Zcash is a failed project" and "it will only stop here".

The development company of ZCash project, Dianbi Company, disclosed its transparency report for the second half of 20 18, in which the financial deficit of $3 million benefited from the positive progress brought by unfair pumping as high as 20%. Can it last? We are not optimistic.

Zk-SNARKs zero-knowledge proof originated from 1990, and related concepts were put forward by cryptographer Jean-Jacques Quisquater (and other collaborators) in the paper How to Explain Zero-knowledge Proof Protocol to Children. ?

? The full name is the non-interactive knowledge demonstration of zero knowledge success.

Amber (simple):? Compared with the actual calculated length, the generated zero-knowledge evidence message is very small. ?

Non-interactive: There is almost no interaction, which means that anyone can verify zero-knowledge evidence without any interaction.

Argument (controversial): Verifiers can only resist the attacks of provers with limited computing power. Provers with sufficient computing power can create forged zero-knowledge evidence to deceive the verifier (note that the computing power just mentioned is enough to crack public key encryption, so don't worry at this stage). ?

Knowledge:? It is impossible for the prover to construct effective zero-knowledge evidence without knowing the specific witness. ?

Zero is a branch of ZEC coin, and has adopted its own independent algorithm since it was launched in February 2065438+2007. It combines the hybrid proof mechanism of pow and pos, and the anonymous core uses zk-SNARKs zero-knowledge proof technology.

The total Zer is 6.5438+0.7 million, with a circulation of 7 million and a market value of 800,000 US dollars. There is no love for western Europe, no pre-excavation, pure community drive, and the unfair problem of using large change ZEC to draw 20% is completely abandoned. Using equihash 192/7 algorithm, compared with zec's equihash algorithm, zer's algorithm has more complicated parameter time, higher memory requirements, and is more energy-saving and environmentally friendly. The blockade time is 2 minutes. This block rewards 20% service nodes, 72.5% excavation and 7.5% governance.

At present, mining can be done anonymously, and exchanges can connect with unique audit systems anonymously. It is worth noting that anonymous mobile phone sending has been basically developed successfully and will be launched soon. Committed to creating an anonymous coin that is completely anonymous from beginning to end, cross-platform, instant arrival and zero transfer fee.

At present, the four major community developers are not well-known gods, but in cooperation with zel, the founders of zel team, Miles Manley and Daniel Keller, are also buying zer and operating node. Being able to buy from the same dev peers is the biggest recognition. At the same time, the zer team has also overcome the problem that the zero-coin system has been unable to achieve anonymous sending of mobile phones, and will release a brand-new mobile wallet in the near future.

The early main battlefield was cryptopia in New Zealand. With the collapse of cryptopia, most active people, including many coins pushing super V, are on it, which leads to those big V's rarely mentioning Zers, which is the biggest constraint on Zers, and correspondingly reduces the circulation of Zeros, releasing 7,776 Zeros every day (currently about 3,800 RMB).

At present, disharmony 1500 people, telegram 1200 people, Turkish community telegram 500 people and Twitter nearly 2700 people. Community activities are now low because of the ownership of activists' money. But among the 2,700 people on Twitter, there are many big V's, which can be said to be undercurrents.

Zec's development fund expires next year, and Zec is facing great changes. Is zec motivated to continue the project? Or let it go and give it back to the community? This is the biggest giant thunder, and it still provides a chance for zer.