سلام بچه ها

من دارم دنبال یه جایگزین برای خودم تو والکس میگردم برای جایگاه

Blockchain Researcher & Blockchain Integration Engineer

اون ساید Develop اش وزن زیادی نداره و بیشتر دانش بلاکچینی مد نظر هستش به عنوان مثال

Transaction Finality
UTXO - Account Base - EUTXO
Consensus algorithms
Ecdsa Cryptography
On-chain privacy & chain analysis approachs
Enterprise wallet system
Blockchain Forks
Blockchain Reorg
Knowledge about Evm based network
Basic knowledge about smart-contract and tokens standard
Protocol level knowledge about the Blockchains
...
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Basic knowledge about software engineering
ability to code with one of following languages (typenoscript, python, go)

لطفاً اگه علاقه مند بودین رزومه اتون رو برام email کنید

hr.moradi@wallex.net

No registration is required to receive funds

in zksync

HOW?

#research


Even though time to finality is about 10 minutes, it does not affect the usability of the network. Transactions submitted to zkSync by users are instantly confirmed, instantly displayed to the receiving party in the UI and API (although they are marked as unconfirmed), and the transferred assets can immediately be used to make further transfers (which might even end up in the same zkSync block).


f a new zkSync block is produced and submitted to the mainchain, it cannot be reverted. However, if it doesn’t contain the promised transactions, the security bond of the intersection of the signers of the original receipt and the signers of the new block will be slashed. This intersection is guaranteed to have more than ⅓ of the stake. This guarantees that at least ⅓ of the security bond can be slashed and that only malicious validators will be punished.

i think this aproach can be mody a little bit and use it as censorship rasistant.


Users can withdraw their assets onto the mainnet, regardless of cooperation from zkSync validators.
HOW this can be done ?

response:
Priority queue
In the ultimate emergency case of all validators being shut down or becoming unresponsive, the emergency exit mechanism ensures that users will keep control of their assets. It works as follows.

If transactions of a user are being ignored, for any reason, by the validators, an exit request can be submitted directly on mainnet into the priority queue.
Validators are obliged to process priority queue requests within a short time window (~1 week).
In case the validators fail to process the requests, the system enters exodus mode and every user can immediately exit all of their assets by making a direct transaction on the Ethereum mainnet.


zkSync is built on some of the most cutting-edge cryptography (such as PLONK and RedShift),



Transfers in zkSync support "gasless meta-transactions": users pay transaction fees in the tokens being transferred. Thus, for example, if you want to transfer DAI stable-coin, there is no need for you to own ETH or any other tokens. Just pay your fees in a fraction of DAI.

Tokens listed on Uniswap with $500 of liquidity and a token price on CoinGecko can be used to pay for fees. For tokens without a liquid market price, fees are paid in a different token.

====================

Centralized custody (fully trusted): Coinbase
Collective custody (trust in the honest majority): sidechains
Non-custodial via fraud proofs (trust in the honest minority): optimistic rollups
Non-custodial, centrally operated (trustless): Argent
Multi-operator (trustless*, weak censorship-resistance): Cosmos
Peer-to-peer (trustless*, strong censorship-resistance): Ethereum, Bitcoin

===================

zkSync smart contracts are able to call one another just like Ethereum smart contracts can. Each call transaction tree is atomic, regardless of the number of contract instances involved.

Any DeFi project can be migrated to zkSync, since most of the existing Solidity code can be deployed without changes.

========
The machine is SNARK-friendly; that is, the execution trace can be proven in SNARKs. However, it does not require one circuit per program. A single circuit can be used instead, which needs to be audited only once.


============

zkEVM is a virtual machine that executes smart contracts in a way that is compatible with zero-knowledge-proof computation. It is the key to building an EVM-compatible ZK Rollup while preserving the battle-tested code and knowledge gained after years of working with Solidity. Our zk-EVM keeps EVM semantics, but is also ZK-friendly and takes on traditional CPU architectures.

یزره این تیکشون رو دوست نداشتم :)

time-travel-queries

https://thegraph.com/docs/en/querying/graphql-api/#time-travel-queries

خود زنی که میگن اینه 😂😂

Dear DeFi MOOC students and participants,

Thanks for joining the DeFi MOOC 2022!

The first AMA session begins at 10:00 a.m. PT on September 6nd (Tuesday) on "Introduction and Overview of DeFi" by Professor Dawn Song from UC Berkeley. Please join zoom: [https://berkeley.zoom.us/j/94128056796?pwd=RWs3bGJkaW1qdGtLd0xBUWN6WjlQUT09]. Please keep in mind that watching the lecture recording prior to the AMA session will help you learn more effectively. The first lecture is available on Youtube [https://www.youtube.com/playlist?list=PLS01nW3RtgorojSlcoLBPRfoNGzQFywaL], which provides an overview of DeFi services and innovations, as well as risks and open research challenges.

For more discussions and meeting fellow students, please join on Discord [https://discord.gg/3yFqmRjZDA]!

We hope everyone is enjoying the class and learning about DeFi!

Regards,

DeFi MOOC staff

اگه مثل من دوست دارید مغزتون درد بگیره از تلاش به فهمیدن تک تک جملاتی که توی این پنل گفته میشه، حتما نگاه کنید (پنل خیلی فنی هست و پیش زمینه‌های عمیقی برای درک مباحث نیاز داره اما همزمان به نظرم به شدت مهمه چون به شکل فشرده خیلی از مباحث طولانی ماه ها و حتی سالهای اخیر مطرح میشن)

از دقیقه ۲۰ این ویدیو پنل شروع میشه

با حضور اریک واسکویل، پیتر تاد، زاکو، پاول زورک، مارتی بنت

عنوان پنل: نظرات غیر محبوب/نامحبوب/کم طرفدار

پنل با یه گپ فان اولیه شروع میشه که از همون اولش مشخصه پر از تنش و طعنه هست (ایده‌ی نه چندان جالب تاد، طرح قدیمی و نه چندان جالب پاول و تلاش اریک به شکستن نظرات بحث و مواجه کردنشون با فکت‌ها)

موضوعاتی از این قبیل بحث میشن:

- Tail emission (basically a Pandora's box)
- security budget
- mining, supply and demand (the idea of the two demanders)
- The necessary evil of multiple clients
- mining incentives
- the inevitable hardfork
- censorship

@ziya_sadr_shares

https://youtu.be/Hdx5qUvYcgA?t=1204