The youngest and most talented Geekhub: I saw the future of the blockchain here.

"Where the heart is, you can go." This is the famous saying of Mr. Mu Xin. Coincidentally, in his hometown of Wuzhen, I realized this feeling.

On the afternoon of November 8, the Babbitt accelerator technology community GeekHub and the university blockchain technology community BTCU held the "New Industry Power, Blockchain Voice from Colleges and Universities" activities. I have met students from more than 20 colleges and universities around the world. They are from well-known universities such as Tsinghua University, Peking University, Zhejiang University, Stanford, Cornell and University College London. Their destinations are the same – the world of blockchain .

This is already the third event of the Babit Accelerator GeekHub. GeekHub has always insisted on cutting-edge technologies such as cryptography and underlying system expansion that are closely related to the blockchain.

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(From left to right, Dr. Wang Wei, Ben Fisch, host Audrey Tang)

In this event, Ben Fisch, the child next door, made his debut at the domestic blockchain event. He is a Ph.D. student in Applied Cryptography at Stanford University. His teacher is Dan Boneh, a cryptographer. He has made breakthroughs in areas such as Zero Knowledge Proof (ZKP), Verifiable Delay Function (VDF), and RSA Accumulator.

Dr. Wang Wei, a computer scientist, also participated in the event. Dr. Wang Wei is a financial technology consultant in a number of financial institutions in Switzerland (including UBS UBS, Credit Suisse, SIX Swiss Stock Exchange, etc.), and is engaged in the research and development of blockchain in the financial sector.

In addition, the representatives of the various university blockchain associations and the chief marketing officer and founding partner of QuarkChain told Aachen that we have some new thoughts on the blockchain.

BTCU founder Lu said:

“Collaborative autonomy, I think it is a very important thing to be able to decide what kind of crops will eventually grow in this soil. But this thing is the hardest, this can determine whether a community is just a WeChat group, or a real distributed Community, this is what we have been working hard."

This may also be the value that the blockchain brings to us, a decentralized, distributed community.

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(popular GeekHub live)

Ben hardcore speech: Zero knowledge proves those things

“Zero knowledge proves that a statement is correct and does not require evidence.”

Ben pointed out that Zcash and Monero and other currencies have achieved confidential transactions through zero-knowledge proof technology: first ensure that the transactions on the chain are encrypted, and then prove that the transaction is valid through zero-knowledge proof, while still No need to disclose trading information.

Zero-knowledge proof technology has great significance in blockchain expansion and privacy. Monroe has reduced its transaction capacity by 80% after deploying the zero-knowledge proof technology Bulletproofs – because this technology allows for smaller transaction volumes and faster verification. In terms of privacy, zero-knowledge proofs not only enable privacy transactions, but also conduct compliance audits while ensuring privacy, such as proving that an encrypted transaction meets policy requirements.

Ben said that zero-knowledge proofs fall into two categories: special purpose (general purpose) and general purpose (general purpose). Dedicated zero-knowledge proof applications can be very efficient, such as signature mechanisms such as ECDSA and Schnorr. Bulletproofs are zero-knowledge proofs for solving moderately complex problems. The currently popular generic zero-knowledge proof requires a trust setup. Starks and Supersonic do not require trusted settings. The former is still large and temporarily not practical. In contrast, Supersonic has no anti-quantum features, but has proven to be usable in multiple scenarios.

The news that "Google won the quantum hegemony" was screened before, so is there zero knowledge to prove that there is no anti-quantum version? The anti-quantum zero-knowledge proof exists (the Starks described above), but it is not practical, and relevant research is currently being carried out to advance its application.

Wang Wei: Social Choice and Blockchain

Ben's speech is full of dry goods, and Dr. Wang Wei uses simpler examples to explain his research.

Dr. Wang Wei used online matching, taxi, organ transplant, voting and other examples to illustrate that the blockchain was applied to specific scenarios. There are still many problems, and many things can't be solved simply by decentralization.

He believes that the (activity) in the blockchain is dynamic, it is a dynamic problem, you don't know what the future is, so we can't blindly build a blockchain, if those two people don't want you to match It won't work.

In his speech, he said that the blockchain has caused a lot of interdisciplinary research in the academic world. This is the Social Choice from political science and economics.

Blockchain Frontier Technology in the Eyes of Zhejiang University

The students from Zhejiang University shared their cutting-edge technology in the event. In the research of blockchain technology, students from Zhejiang University can be said to have been at the forefront.

Huang Jiejie, chairman of the Zhejiang University Blockchain Club, summed up four points, first with zero-knowledge proof and MimbleWimble-led privacy; secondly, it can improve the consensus of the blockchain; and layer1+layer2 expansion; and IPFS-led Distributed storage.

Lin Zepei, also from the Zhejiang University Blockchain Club, focuses on blockchain + privacy. He mentioned in the speech the application of cryptography in the blockchain source language, which is mainly divided into several modules. The first one is the hash function. The two are digital signatures, as well as threshold signatures, followed by addition and subtraction algorithms, and finally secure multiparty calculations and zero-knowledge proofs.

How does the public chain break?

The final speaker was QuarkChain's chief marketing officer and founding partner to Aachen. She believes that the current challenges facing the blockchain include the four major problems of community division, difficulty in upgrading, decentralization and single function. The reason for these four problems is that the existing blockchain is fixed on the underlying architecture. In this regard, QuarkChain has come up with an open and flexible solution, that is, a two-layer structure, the root chain is fixed, the fragmentation is flexible and adjustable, in terms of transaction mode, consensus mechanism, token economy and account mode. Optional.

Written at the end

No matter how the market cycle changes, students from all colleges and universities will always be the most loyal supporters of the blockchain. Ma Yun said that young people like the future. From the eyes of more than 100 young people present, I saw the future, a decentralized world driven by blockchain.

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