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fedorovn19

3 karma · joined February 27, 2024

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fedorovn19··on [dead]
Ethereum faces challenges in efficiency, scalability, and usability as it matures. A debate within the community is whether to focus on Layer 1 (L1) enhancements or embrace Layer 2 (L2) solutions. At Devconflict, leaders discussed this issue, with a strong argument made for L2. The recent development of PeerDAS, introduced through EIP-4844 in the March 2024 Deneb-Cancun upgrade, is pivotal for L2 scalability.

L1 improvements involve core protocol upgrades but risk increased centralization and require slow consensus among participants. In contrast, L2 solutions, like Rollups, significantly enhance transaction speeds and reduce costs without altering the L1 protocol. Currently, Ethereum processes about 13-24 transactions per second, while L2 solutions are scaling to around 337 TPS.

PeerDAS enhances L2 scalability by allowing nodes to perform partial data availability checks, easing bandwidth requirements and improving scalability and cost efficiency. This development makes Ethereum more accessible, particularly for smaller users. While concerns about security and decentralization persist, innovations like PeerDAS aim to uphold strong security guarantees and stimulate further decentralization by reducing barriers to entry for new participants.

In conclusion, while L1 enhancements are necessary, focusing on L2 solutions like PeerDAS may provide the scalability and efficiency Ethereum needs while maintaining its core principles of decentralization.

fedorovn19··on [dead]
We are excited to announce the release of EVM Explorer, a powerful, open-source web interface designed to streamline the exploration and analysis of blockchain data. Utilizing the BlockScout API and viem library, EVM Explorer enables users to delve into transaction patterns and user behaviors across multiple EVM chains.
fedorovn19··on [dead]
The Mina Protocol incorporates innovative features such as non-transferable soulbound tokens, zero-knowledge proofs, zkOracles, VRFs, and off-chain data handling to address key challenges in Web3, enhance scalability, bolster identity systems, and enable more powerful and private zkApps.
fedorovn19··on [dead]
The Ethereum blockchain is a powerful tool for developers, providing a platform for the creation and deployment of smart contracts. With the increasing popularity of decentralized applications, there is a need for an efficient way to explore and analyze the Ethereum network and its associated contracts.

Fortunately, there are some great tools available to help with this task. Etherscan, Ethplorer and BlockScout are three of the most popular Ethereum contract explorers. They provide users with an easy-to-use interface for exploring Ethereum contracts, and offer a variety of features to help users understand the blockchain.

fedorovn19··on [dead]
Gitcoin, a platform at the forefront of empowering open-source development and community-driven initiatives, is embarking on a pioneering journey with its Quadratic Funding (QF) Pilot Initiative. This initiative, in collaboration with Allo Protocol and driven by a commitment to community engagement and experimentation, seeks to revolutionize the way funding is distributed within its ecosystem. Let's delve into the intricacies of this proposal, its motivations, expected outcomes, and potential challenges.
fedorovn19··on [dead]
Get started with Mantine + RainbowKit + Next with just a few button clicks. Click Use this template button at the header of repository and create new repository with @mantine packages. Note that you have to be logged in to GitHub to generate template.
fedorovn19··on [dead]
Pin Save is a platform for decentralized content aggregation and image sharing where users have content ownership.

Pin Save provides users with the ultimate control over their content. The platform's decentralized architecture enables users to store and manage their content securely, while also providing them with options to monetize their content.

Upload your meme at https://evm.pinsave.app/upload

fedorovn19··on Simple and easy Heroku telegram bot in Python
A Python Telegram Bot is a simple, easy-to-use tool that allows you to send and receive messages through the Telegram app. In this article we create telegram bot which is a chatbot that uses the Telegram protocol to communicate with users. It can be used to send and receive messages, as well as to manage channels and users. Further we host python telegram on Heroku.
fedorovn19··on How to Python check proxy with aiohttp
Data analysis often requires collecting a large amount of data from various sources. However, to prevent getting blocked by web servers due to IP restrictions, it is recommended to use a python proxy scraper to access data anonymously. A proxy server acts as an intermediary between your device and the web server, allowing you to hide your IP and access websites that may be blocked or restricted. In this article, we provide a step-by-step guide on how to implement a python proxy scraper using various libraries such as requests, Selenium, BeautifulSoup, and NumPy. Additionally, we also demonstrate how to utilize proxies with AIOHTTP, an asynchronous HTTP client/server library for Python.
fedorovn19··on Updated PinSave Orbis Provider
Latest Updates Removed faulty Lit Orbis encryption. Improved API for Orbis Posts. Added Context for Orbis Client.
fedorovn19··on [dead]
We are excited to announce the release of ZkBlind NextJs, a cutting-edge project that leverages the power of zero-knowledge tools and protocols to provide unparalleled anonymity security. ZkBlind NextJs is a solution that allows individuals to authenticate their employment with a specific company without revealing their actual identity.

How ZkBlind NextJs Works ZkBlind NextJs provides a seamless process for individuals to authenticate their employment using Zero-Knowledge Proofs (ZKP). Here's a step-by-step guide on how to use ZkBlindNextJs:

Send Email: Users can send an email from their corporate account to their personal account, including their Ethereum (ETH) address and its corresponding signature in the email body.

Generate ZKP: After downloading the email from the personal account, users can use the provided script to generate the Zero-Knowledge Proof.

Registration & Validation: Users can fill out a form on zkBlind with their ZKP, email suffix (indicating their company), ETH address, and user ID. ZkBlind NextJs will validate the submitted information and register user details in a smart contract upon successful validation.

Usage: Once registered, users can log in to ZkBlind NextJs with their ETH wallet and post messages. Despite being verified as an employee of a specific company (via their email suffix), their individual identity remains anonymous.

fedorovn19··on [dead]
Blockchain technology has transformed the way we store data, bringing about new opportunities for decentralized systems. Mina Protocol, a groundbreaking platform, offers a lightweight, scalable, and privacy-friendly infrastructure. In this blog post, we will explore the world of Mina Protocol, understand its features, benefits, and provide a comprehensive guide on getting started in this innovative ecosystem.

Understanding Mina Protocol Mina Protocol is a next-generation blockchain powered by Zero Knowledge Proofs (ZKPs). ZKPs allow users to prove the validity of information without revealing the actual data itself. This approach ensures that the entire Mina blockchain remains incredibly lightweight and easily verifiable. Unlike traditional blockchains, Mina Protocol's blockchain is designed to be roughly the size of a few tweets, making it accessible to anyone with limited resource.

fedorovn19··on [dead]
Full Stack Blockchain Developer with over 3 years of experience in engineering decentralized applications with Rust, Solidity, Python, JavaScript, React and NextJs. I have achieved multiple awards from Filecoin, Uniswap, Algorand, Near, Fuel Blockchain, Ceramic and PARSIQ. With Pin Save decentralized Pinterest completed Filecoin grant to advance decentralized Identity (ERC-725) in combination with NFT standards.

I have also excelled in Python programming and worked with teams of developers to improve the data analysis pipeline. I am a native English and Russian speaker with working knowledge of Spanish. I also have a BA in Business Studies and Economics from the University of Manchester, graduating with Honors and publishing a popular academic article titled: "Critical analysis of the electric vehicle industry: Five forces and strategic action fields".

fedorovn19··on [dead]
In this article we are going to discuss Blockchain data indexing. Blockchain is a type of a shared database that differs from a typical database in the way it stores information. A blockchain is a growing list of records, also called blocks, that are linked together using the latest cryptography technology. In general, each block contains a cryptographic hash of the previous block, a timestamp, and transaction data. For example, the transaction data in a Bitcoin Block contains information about the Sender, Receiver and the number of bitcoins to be transferred.
fedorovn19··on What is a reorg? Implications and Future Directions
In blockchain technology, chain reorganizations, or "reorgs," are a significant challenge for decentralized networks. Stemming from simultaneous block production and network latency, reorgs disrupt ecosystems and introduce uncertainty into transaction confirmations. This article explores the complexities of blockchain reorgs, addressing their implications and potential solutions.

Reorg - Causes and Consequences Blockchain reorganizations, often referred to as "reorgs," represent a critical phenomenon within decentralized networks. These reorgs happen when validators within the blockchain ecosystem disagree on the most accurate version of the chain, typically due to factors such as simultaneous block production, network latency, bugs, or malicious attacks. The consequences of reorgs extend beyond technicalities, impacting user experience, network costs, and security vulnerabilities.

fedorovn19··on [dead]
Twitter @dspytdao Python jail escape: a challenge with one of the lowest points in the Newbie CTF 2019 which we solve in this article. It is generally a bad idea to allow users to input commands that will be executed since there is a high chance that they could input something that would allow them to gain elevated permissions or access sensitive data. However, people often add condition checks in an attempt to prevent this from happening, even though it is rarely effective.

The jail is basically a set of python code that is executed on the python process when the user executes certain commands, in this case entering specific lines of text. This is possible since Python allows passing parameters to the application. In this particular case, the script only checks if the command passed is not banned.

fedorovn19··on [dead]
Analysis and Implementation of Advanced Volatility Metrics in Financial Returns Modeling Using Python and Quantitative Methods 1. Metrics of Volatility and Integrated Quarticity: - Discussed advanced metrics of volatility and measures of integrated quarticity in the context of financial returns modeling. - Implemented the volatility estimators using Pandas, NumPy, and SciPy libraries.

2. Realized Quarticity Estimators: - Realized quarticity is a consistent estimator of integrated quarticity. - Implemented additional estimators like realized quad-power quarticity and realized tri-power quarticity.

3. Implementation of Volatility Functions: - Implemented functions like realized_quarticity, realized_quadpower_quarticity, realized_tripower_quarticity to calculate quarticity indices. - Explained the mathematical operations involved in the calculation process.

4. Additional Volatility Estimators: - Discussed realized volatility estimator 1 and how it is calculated. - Explained realized volatility estimator 2 and 3 along with their mathematical formulations.

5. Future Ideas for Exploration: - Suggested exploring optimization strategies based on residuals from GARCH models. - Referenced the potential of ARFIMA models in volatility prediction and modeling. - Highlighted the use of current and lagged variables to enhance insights on future volatility. - Proposed the separation of quadratic variation into continuous and jump components for increased robustness.

6. Conclusion on Realized Volatility: - Realized Volatility python is a metric essential in measuring the time-variability of financial series. - Explained the importance of capturing volatility and time-variability in financial data.

7. References and Related Posts: - Listed references for further reading on realized volatility and related topics. - Highlighted additional resources such as Kaggle notebooks and machine learning applications.

fedorovn19··on [dead]
Integrating SoulBound Tokens, Mina Protocol, and zkPassport for Decentralized Social Solutions in Web3

1. Web3 Identity and Social Experience Enhancement: - Introduction of non-transferable soulbound tokens (SBTs) to enable trust networks, community wallet recovery, and sybil-resistant governance systems in Web3. - SBTs represent commitments, credentials, and affiliations, enabling applications like undercollateralized lending and decentralized key management solutions in the Web3 landscape.

2. Mina Protocol: - Overview of the Mina Protocol White Paper, highlighting the protocol's distinct feature of being the world's lightest blockchain with a fixed size of 22 KB. - Emphasis on Zero-Knowledge Proofs to balance scalability, decentralization, and security within the Mina Protocol.

3. Mina Payment Process and Gossip Protocol: - Lifecycle of a payment in Mina, involving creating a payment, producing a block, proving a SNARK transaction, verifying the payment, and achieving a payment confidence level. - Utilization of gossip protocol for reliable transmission of messages to all members of the network in Mina.

4. SNARK Workers in the Mina Network: - Role of SNARK workers in maintaining the conciseness of the Mina blockchain through generating SNARK proofs for data compression and validation purposes. - Integration of SNARK workers and block producers to establish the snarketplace, aligning with the principles of supply and demand and fostering a balanced marketplace.

5. zkPassport for Mina and Connected Ecosystems: - Implementation of zkPassport to create a private identity solution for Mina and its connected ecosystems, leveraging Zero-Knowledge Proofs and smartphone NFC. - Objectives include providing proofs about passport information without exposing the information itself, with relevant use cases in scenarios such as proof of uniqueness and proof of nationality.

6. Decentralization and Privacy in Web3: - Mina, zkPassport, and SoulBound NFTs address centralization, scalability, and privacy challenges in Web3. - They promote innovative solutions for identity and social interaction in blockchain networks.

fedorovn19··on [dead]
Benefits and Calculations of Financial Returns using Pandas and NumPy 1. Simple Returns vs Log Returns: - The key benefit of using financial returns instead of prices is normalization, allowing measurement and comparison of all financial instruments and assets. - Pandas and NumPy are used for calculating simple returns with the pct_change function and log returns with the numpy log function.

2. Advantages of Log Returns: - Log returns can be easily aggregated across time, unlike simple returns. - Log returns are symmetric around 0 and can range from minus infinity to plus infinity, providing a wider range of possible values compared to simple returns.

3. Realized Volatility: - Realized volatility measures the magnitude of daily price movements, regardless of direction, over a specific period. - It is calculated as the daily standard deviation of log returns of an underlying asset, index, instrument, security, or ETF with an assumed mean of zero.

4. Realized Variance: - Andersen and Bollerslev introduced the concept of realized variance, an ex-post observable measure based on the sum of squared intra-day returns. - This measure provides further insights into the volatility of financial assets.

fedorovn19··on Cross-sectional data – An easy introduction
Distinguishing Cross Sectional Data Analysis: Key Features and Considerations

1. Understanding Cross Sectional Data: - Cross sectional data sets consist of a sample of units at a given point in time, comparing differences between respondents. - It is data obtained from all participants at the same time, ignoring minor timing differences.

2. Cross Sectional Data vs Time Series: - Cross sectional data is collected from a variety of different sources, while time series data is collected from a single source. - Cross sectional data and time series data have different purposes and provide different insights.

3. Analysis of Cross Sectional Data: - Cross sectional data analysis helps understand the behavior and preferences of a population of objects or people. - It can identify patterns and trends to make informed decisions especially in business or marketing settings.

4. Cross Sectional Data Example: Titanic Kaggle Dataset: - The example includes variables like PassengerID, Survived, Pclass, Name, Sex, Age, and more. - The fact that the ordering of the data does not matter for analysis is a key feature of cross sectional data examples.

5. Random Sampling in Cross Sectional Data: - Cross sectional data is often assumed to be obtained by random sampling from the underlying population. - However, there are cases where random sampling may not be appropriate, leading to violations that affect the analysis.

fedorovn19··on Critical Analysis of the Electric Vehicle Industry
Global warming and urban pollution have directed public policy towards sustainability and development of cleaner sources of energy. Electric vehicle industry provides a viable trajectory towards energy efficient transportation. From the standpoint of strategic management, we apply the five forces framework that outlines the dynamics in the electric vehicle industry and highlights the relative attractiveness of substitute products in terms of price and available infrastructure. In addition, the paper advances discussion of Porter’s widely used Five forces model in strategic management by appropriating the concept of strategic action field that allows for the inclusion of human element. Finally, the paper bridges the gap for refinement and involvement of human element through the application of strategic action fields.
fedorovn19··on Unlock the Power of Decentralization with PinSave
Benefits of Using Pin Save for Decentralized Content Storage and Monetization 1. Pin Save: Control and Monetize Content: - Pin Save offers decentralized storage and smart contracts for users to protect and monetize their content. - Users can maintain their anonymity and data protection while leveraging their content for income.

2. Decentralized Feed for Interaction: - Users can receive feedback, improve content, and engage with others in the secure Pin Save community. - The feed allows for exploring new trends and sharing content in an efficient way.

3. Experience the Benefits of Decentralization: - Pin Save provides ultimate control over content, securing it and enabling monetization opportunities. - Users can take advantage of decentralized storage and creator ownership for content protection.

fedorovn19··on [dead]
Implementing Python Proxy Scraper with Libraries for Web Scraping Data 1. Python Proxy Scraper using Various Libraries: - Data analysis often requires collecting a large amount of data from various sources. - To access data anonymously, it is recommended to use a python proxy scraper. - Proxy servers act as intermediaries between your device and web servers, hiding your IP address. - Implementing a python proxy scraper can be done using libraries such as requests, Selenium, BeautifulSoup, and NumPy. - A reliable and efficient proxy service like Bright Data's proxy network is recommended for optimizing the scraping process. - A proxy server obfuscates your IP address, allowing you to obtain data for research more effectively. - You can obtain, verify, and implement a python proxy scraper for free proxies using libraries like requests, Selenium, BeautifulSoup, and NumPy. - Concurrent testing of multiple proxies can be done using ThreadPoolExecutor and requests library.

2. Python Proxy Scraper with Requests: - To effectively implement a python proxy scraper, you can use the requests library. - Check whether proxy servers are compatible with the target website. - Collect the proxy server list from Free Proxy List website. - Save only the working proxies to a file.

3. Python Proxy Scraper with Selenium: - In addition to requests, you can also use the selenium library for python proxy scraping. - Scrape and check the proxy server list from Advanced Name website using Selenium and BeautifulSoup. - Save the working proxies to a file.

4. Proxies with AIOHTTP: - Asynchronous HTTP client/server library AIOHTTP for asyncio and Python can be used with proxies. - Aiohttp-proxy library assists with SOCKS proxy connector for AIOHTTP. - Fetch data from a URL using proxies in AIOHTTP.

5. Conclusion: - Python proxy scraping is a useful technique for accessing and extracting data from websites. - Free proxy servers may get flagged quickly, so paid residential proxy servers are recommended. - Bright Data provides a reliable paid residential proxy service. - The service formerly known as Luminaty offers a well-written API documentation for managing proxies.

fedorovn19··on [dead]
Analysis of AXS Token Performance and Staking Trends on Ethereum Network vs. Binance Exchange

1. Introduction to AXS Token and Axie Infinity: - AXS is an Ethereum token that powers Axie Infinity, a blockchain-based game allowing players to battle, collect, and build a digital kingdom for their pets. - Holders can claim rewards for staking their tokens, playing the game, and participating in governance.

2. Significant Update and Impact on AXS Token: - A significant update on April 28, 2021, introduced Ronin Bridge, which has become a crucial link in the Axie Infinity ecosystem and largely contributes to the price action of AXS. - The bridge has become the only available option for Axie marketplace, breeding, and morphing contracts.

3. AXS Token Staking and Inflows: - On the Binance Exchange, AXS has the highest earning product in Locked staking with an estimated APY of 131.25%, indicating strong inflows and minor outflows. - Monitoring the most liquid day-to-day endpoints provides an indicator of the success of the staking solution.

4. Token Transfer Triggers and Data Analysis: - Data collected from Token Transfers reveals that there are more transactions to the native staking solution rather than Binance, with the sum of outflows dominating, indicating more incoming users and significant withdrawals from Binance.

5. Comparison of AXS on Ethereum and Binance Smart Chain: - The volume of transactions on Ethereum of AXS is much greater than on Binance Smart Chain, with interesting insights from the score of the addresses in the AXS dataset on Ethereum.

fedorovn19··on [dead]
Increasing AAVE Token Holder Participation through Dspyt Initiative 1. Challenges of Low Participation Rates in DAO Governance: - Low participation rates, currently at 2.4% among AAVE token holders, pose a significant hurdle to achieving robust and representative governance. - Most DAOs struggle to attain meaningful voter engagement, with ghost delegates composing an average of 53% of all delegates.

2. Objective of the Dspyt Initiative: - Dspyt aims to increase participation rates in on-chain voting and enhance the legitimacy of AAVE's decision-making processes through targeted interventions, incentives, and proactive engagement with delegates within the AAVE community. - The initiative also focuses on creating educational content to inform and encourage token holders to actively participate in governance.

3. Comprehensive Plan of the Dspyt Project: - The project includes data collection on AAVE Protocol token holders' participation, comprehensive analytics on on-chain voting participation rates, and delegate outreach and encouragement. - It also aims to analyze participation patterns and the impact of different platforms on voting, aiming to attract more users to take part in governance.

4. Conclusion and Future Outlook: - The Dspyt initiative seeks to usher in a new era of dynamic, inclusive, and effective governance in the AAVE ecosystem through data-driven insights, proactive outreach, and educational initiatives. - Despite existing online resources, AAVE currently faces challenges in community participation, but the initiative remains hopeful in realizing a truly decentralized and powerful financial ecosystem.

fedorovn19··on Dspyt-CodeVerse – Fostering Innovation and Education in Web3 Technologies
Dspyt-CodeVerse is a forward-thinking organization committed to promoting open-source initiatives and fostering innovation in the rapidly evolving Web3 ecosystem. Our primary focus is on empowering developers and enthusiasts in the Blockchain, Python, JavaScript, and Next.js communities by providing them with resources, mentorship, and opportunities to collaborate on exciting projects. By bringing together talented individuals from diverse backgrounds, we aim to strengthen the Web3 community and create a lasting impact on decentralized technology adoption worldwide.
fedorovn19··on [dead]
Pin Save is a decentralized social media which consists of decentralized posts enabled by Mina blockchain and o1js. The speed of interacting with media and content should be greatly enhanced by storing metadata off-chain enabled by Mina merkle trees. In addition, it aims to introduce more standards into the Mina ecosystem related to non fungible tokens to improve developer experience.
fedorovn19··on Pin Save – Decentralized Pinterest
Pin Save is a decentralized image, video sharing and content aggregation platform where users can not only control the content but also the platform itself.

The decentralized feed reinforces the discovery of content and feedback. Decentralized Identity, which provides anonymity and data protection. Upgradeable, resilient, and open decentralized storage. Smart contracts to securely serve web experiences directly to users.

fedorovn19··on [dead]
Overview of Synthetix: Decentralized Protocol for Synthetic Assets on Ethereum with Governance and Scalability Solutions 1. Synthetix's Revolutionary Approach: - Synthetix is a decentralized protocol offering synthetic assets, known as "synths," representing diverse real-world assets, without the need for direct ownership. - It allows for unparalleled flexibility, enabling global market participation and 24/7 trading.

2. The Power of SNX Token: - SNX serves as collateral for synthetic asset issuance and as a governance tool, with holders contributing to the collateral pool and participating in protocol governance. - Its democratic governance model enables holders to make decisions on protocol upgrades and critical matters.

3. Building a Robust Infrastructure: - Synthetix prioritizes a secure infrastructure and explores layer 2 scaling solutions and interoperability with other blockchains to address scalability concerns. - It leverages the Ethereum blockchain for security and decentralization.

4. Challenges and Future Prospects: - Despite challenges like market volatility, regulatory uncertainties, and scalability concerns, Synthetix remains resilient and committed to innovation. - Its dedication to decentralization and infrastructure development positions it as a key player in the evolving DeFi ecosystem.

fedorovn19··on [dead]
Blockchain technology has transformed the way we store data, bringing about new opportunities for decentralized systems. Mina Protocol, a groundbreaking platform, offers a lightweight, scalable, and privacy-friendly infrastructure. In this blog post, we will explore the world of Mina Protocol, understand its features, benefits, and provide a comprehensive guide on getting started in this innovative ecosystem.

Understanding Mina Protocol Mina Protocol is a next-generation blockchain powered by Zero Knowledge Proofs (ZKPs). ZKPs allow users to prove the validity of information without revealing the actual data itself. This approach ensures that the entire Mina blockchain remains incredibly lightweight and easily verifiable. Unlike traditional blockchains, Mina Protocol's blockchain is designed to be roughly the size of a few tweets, making it accessible to anyone with limited resources - a unique characteristic that.

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