Here we collect and discuss the best DeFi & Blockchain researches and tools - contributions are welcome.
Feel free to submit a pull request, with anything from small fixes to translations, docs or tools you'd like to add.
Topic | Instant Link |
---|---|
Basics | Explore |
dApps | Explore |
Frameworks | Explore |
zk-snarks | Explore |
Further Readings | Explore |
Security | Explore |
DeFi | Explore |
ENS | Explore |
NFT | Explore |
Stable Coins | Explore |
General Info | Explore |
Side Chains | Explore |
MEV | Explore |
Tools Collection | Explore |
ETH 2.0 | Explore |
Front End | Explore |
Note: Superblocks is depreciated
npm i -g ethnode && ethnode
.Blockchain Security Roadmap - This article will be laying down a path/roadmap, following which users will easily enter into the field of Blockchain Security together.
The Eye of Horus: Spotting and Analyzing Attacks on Ethereum Smart Contracts -Investigation shows that the number of attacks did not necessarily decrease over the past few years, but for some vulnerabilities remained constant.
Analysis of Bitcoin Vulnerability to Bribery Attacks Launched Through Large Transactions - In this paper, authors design a novel bribery attack and show that this guarantee can be hugely undermined.
Vulnerability of Blockchain Technologies to Quantum Attacks - Here authors analyze the major blockchain-based cryptocurrencies deployed today -- including Bitcoin, Ethereum, Litecoin and ZCash, and determine risk exposure to quantum attacks.
BLOCKEYE - Hunting For DeFi Attacks on Blockchain. In this paper, authors proposed BLOCKEYE, a real-time attack detection system for DeFi projects on the Ethereum blockchain.
Topological Anomaly Detection in Dynamic Multilayer Blockchain Networks - Authors introduce a new topological perspective to structural anomaly detection in dynamic multilayer networks.
Verification of the Incremental Merkle Tree Algorithm with Dafny - Authors present our new and original correctness proof of the algorithm along with the Dafny machine-checkable version.
GoHammer Blockchain Performance Test Tool - This tool will help in developing more efficient decentralized systems and will affect decreasing the costs of developing decentralized application projects.
EtherClue: Digital investigation of attacks on Ethereum smart contracts - In this work, authors study the problem of post-factum investigation of Ethereum attacks using Indicators of Compromise specially crafted for use in the blockchain.
Requirement Analyses and Evaluations of Blockchain Platforms per Possible Use Cases - This document provides a generic model of understanding blockchain and its applications.
A Note on Privacy in Constant Function Market Makers - In this note, authors show that privacy is impossible with the usual implementations of CFMMs under most reasonable models of an adversary and provide some mitigating strategies.
A Survey of Security Vulnerabilities in Ethereum Smart Contracts - This paper explains eight vulnerabilities that are specific to the application level of BT by analyzing the exploitation case scenarios of these vulnerabilities.
An approach to detect Denial of Service Vulnerability in Ethereum Smart Contracts - In this paper, authors propose a framework that combines static and dynamic analysis to detect DoS due to an unexpected revert in ETH Smart Contracts.
AGSolT: a Tool for Automated Test-Case Generation for Solidity Smart Contracts - Authors found that AGSolT is capable of achieving high branch overage with both approaches and even discovered some errors in some of the most popular Solidity smart contracts on Github.
Temporal-Amount Snapshot MultiGraph for Ethereum Transaction Tracking - Authors propose TASMG to model Ethereum transaction records as a temporal-amount network and then present TAW to effectively embed accounts via their transaction records, which integrates temporal and amount information of the proposed network.
Demystifying Cryptocurrency Mining Attacks: A Semi-supervised Learning Approach Based on Digital Forensics and Dynamic Network Characteristics - This paper addresses the detection of crypto mining attacks in a generic network environment using dynamic network characteristics.
FASTEN: Fair and Secure Distributed Voting Using Smart Contracts - Authors prove that the probability of privacy breaches is negligibly small. Further, cost analysis of executing FASTEN over Ethereum is comparable to most of the existing cost of elections.
Interdependencies between Mining Costs, Mining Rewards and Blockchain Security - This paper studies to what extent the cost of operating a proof-of-work blockchain is intrinsically linked to the cost of preventing attacks, and to what extent the underlying digital ledger security budgets are correlated with the cryptocurrency market outcomes
HyperSec: Visual Analytics for blockchain security monitoring - HyperSec, a visual analytics monitoring tool that provides relevant information at a glance to detect ongoing attacks on Hyperledger Fabric.
Reentrancy Vulnerability Identification in Ethereum Smart Contracts - In this paper, authors present a framework that combines static and dynamic analysis to detect Reentrancy vulnerabilities in Ethereum smart contracts.
A General Framework for the Security Analysis of Blockchain Protocols - This paper presents a parsimonious abstraction sufficient for capturing and comparing properties of many well-known permissionless blockchain protocols.
Coinbugs: Enumerating Common Blockchain Implementation-Level Vulnerabilities - The paper is aimed at security testers aiming to start out in blockchain security reviews and blockchain developers as a reference on common pitfalls.
Vulnerabilities and Open Issues of Smart Contracts: A Systematic Mapping - This paper conducted a systematic literature mapping identifying initiatives and tools to analyze SCs and how to deal with the identified vulnerabilities.
SuMo: A Mutation Testing Strategy for Solidity Smart Contracts - Authors report a first evaluation of SuMo on open-source projects for which test suites were available. The results authors got are encouraging, and they suggest that SuMo can effectively help developers to deliver more reliable smart contracts.
(In)Stability for the Blockchain: Deleveraging Spirals and Stablecoin Attacks - The possibility of deleveraging spirals was first predicted in the initial release of this paper in 2019 and later observed in the Black Thursday crisis in Dai in 2020.
An Anonymous Trust-Marking Scheme on Blockchain Systems - In this paper, authors propose an anonymous trust-marking scheme on blockchain systems that is universally applicable to any cryptocurrency.
A Framework and DataSet for Bugs in Ethereum Smart Contracts - In this paper, to fill the gap, authors first collect as many smart contract bugs as possible from multiple sources and divide these bugs into 9 categories by extending the IEEE Standard Classification for Software Anomalies.
A Secure Multi-chains Consensus Scheme Against Diverse Miners Behaviors Attacks in Blockchain Networks. - Experimental results show that PoDT is secure against DMB attacks and more effective than traditional consensus schemes in multi-chains environments.
A Survey on Consortium Blockchain Consensus Mechanisms - This paper highilights several state-of-the art solutions in consensus algorithms for enterprise blockchain.
Extracting Smart Contracts Tested and Verified in Coq - Authors implement extraction of Coq programs to functional languages based on MetaCoq's certified erasure.
Trustless, privacy-preserving blockchain bridges - In this paper, authors present a protocol for facilitating trust-less cross-chain cryptocurrency transfers that preserve privacy of bridge withdrawals.
Security checklists for Ethereum smart contract development: patterns and best practices - Authors cover the phases of design, coding, and testing and deployment of the software lifecycle.
Dynamic Vulnerability Detection on Smart Contracts Using Machine Learning - In this work authors propose Dynamit, a monitoring framework to detect reentrancy vulnerabilities in Ethereum smart contracts.
Targeting the Weakest Link: Social Engineering Attacks in Ethereum Smart Contracts - In this work, authors explore the possibility and existence of new social engineering attacks beyond smart contract honeypots.
OptSmart: A Space Efficient Optimistic Concurrent Execution of Smart Contracts - In this paper, authors develop a concurrent miner that proposes a block by executing the AUs concurrently using optimistic Software Transactional Memory systems (STMs).
DEFECTCHECKER: Automated Smart Contract Defect Detection by Analyzing EVM Bytecode - Experimental results show that DefectChecker performs much better than these tools in terms of both speed and accuracy.
SmartBugs: A Framework to Analyze Solidity Smart Contracts - Authors show how it enables easy integration and comparison of analysis tools by presenting a new extension to the tool SmartCheck that improves substantially the detection of vulnerabilities related to the DASP10 categories Bad Randomness, Time Manipulation, and Access Control (identified vulnerabilities increased from 11% to 24%).
Profiling Gas Leaks in Solidity Smart Contracts - In this paper, authors identify a set of 19 Solidity code smells affecting the deployment and transaction costs of a smart contract, and assess the relevance of such smells through a survey involving 34 participants.
Securing Parallel-chain Protocols under Variable Mining Power - In this paper, authors consider the design of provably secure parallel-chain protocols which can adapt to such mining power variations.
Ethereum SmartContract Vulnerability Detection using Deep Neural Network and Transfer Learning - ESCORT framework enables transfer learning on new vulnerability types with minimal modification of the DNN model architecture and re-training overhead.
SCSGuard: Deep Scam Detection for Ethereum Smart Contracts - Experimental results manifest that SCSGuard achieves high accuracy (0.94), precision (0.96%) and recall (0.98) for both Ponzi and Honeypot scams, and new Phishing smart contracts.
Securing Cyber-Physical Systems Through Blockchain-Based Digital Twins and Threat Intelligence - This article focuses on securing CPSs by integrating Artificial Intelligence (AI) and blockchain for intelligent and trusted DTs.
A Survey on Blockchain Interoperability: Past, Present, and Future Trends - In this post, authors study blockchain interoperability techniques and solutions, providing a holistic overview of blockchain interoperability, paving the way for systematic research in this domain.
SoK: Transparent Dishonesty: front-running attacks on Blockchain - A paper on secure smart contract designs decisions and front-running possibilities on DApps.
SoK: Oracles from the Ground Truth to Market Manipulation - A paper that systemizes the design alternatives for oracles, showcases attacks, and discusses attack mitigation strategies.
Finematics - Educational videos on DeFi
Formal Analysis of Composable DeFi Protocols - In this paper, authors propose a formal process-algebraic technique that models DeFi protocols in a compositional manner to allow for efficient property verification.
Transaction Fee Mechanism Design - Authors explain the behavior of fees in blockchains.
DeFi-ning DeFi: Challenges & Pathway - Good Retrospective into the beginning of decentralized finance.
A theory of Automated Market Makers in DeFi - Authors exploit our theory to formally prove a set of fundamental properties of AMMs, characterizing both structural and economic aspects.
From banks to DeFi: the evolution of the lending market - Authors discuss the persisting reliance of DeFi lending on the traditional financial system, and conclude with the outlook of the lending market in the IOV era.
On the Just-In-Time Discovery of Profit-Generating Transactions in DeFi Protocols -In this paper, authors investigate two methods that allow them to automatically create profitable DeFi trades.
Maximizing Extractable Value from Automated Market Makers - In this paper authors formally characterize rational miners as players which follow an optimal strategy in the mining game.
The Decentralized Financial Crisis - In this paper authors explore how design weaknesses and price fluctuations in DeFi protocols could lead to a DeFi crisis.
Liquidations: DeFi on a Knife-edge- In order to protect protocols from suffering losses, undercollateralized positions can be liquidated. In this paper, authors present empirical analysis of liquidations on protocols for loanable funds (PLFs).
Measuring Asset Composability as a Proxy for DeFi Integration - Authors seek to understand the degree to which this practice may contribute to financial integration on Ethereum by examining transactions in 'composed' derivatives for the assets DAI, USDC, USDT, ETH and tokenized BTC for the full set of 344.8 million Ethereum transactions computed in 2020.
Dynamic Curves for Decentralized Autonomous Cryptocurrency Exchanges - Authors propose in this work a new approach to constructing the AMM by proposing the idea of dynamic curves.
High-Frequency Trading on Decentralized On-Chain Exchanges - In this work authors formalize, analytically exposit and empirically evaluate an augmented variant of front-running: sandwich attacks, which involve front- and back-running victim TXs.
Flashot - A Snapshot of Flash Loan Attack on DeFi Ecosystem.
DeFiRanger - Detecting Price Manipulation Attacks on DeFi Applications.
Attacking the DeFi Ecosystem with Flash Loans for Fun and Profit - Flash Loans. DeFi. Classic.
SoK: Decentralized Finance (DeFi) - In this Systematization of Knowledge (SoK), authors delineate the DeFi ecosystem along its principal axes. SCSGuard: Deep Scam Detection for Ethereum Smart Contracts
Empirical Evidence from four Governance Token Distributions - This paper provides a framework to quantify decentralization of governance power among blockchain applications.
The Adoption of Blockchain-based Decentralized Exchanges - Authors show that liquidity providers lose token value if exchange rates are volatile due to the order execution mechanism of the blockchain-based exchange.
An analysis of Uniswap markets -One of the best studies on Uniswap DEX activity, authors started researching in 2019 and recently released fresh 2021 analysis.
Finance 4.0: Design principles for a value-sensitive cryptoecnomic system to address sustainability - Authors provide new insights on designing crypto systems.
Behavior of Liquidity Providers in Decentralized Exchanges - Authors aim to understand how liquidity providers react to market information and how they benefit from providing liquidity in DEX.
Cyclic Arbitrage in Decentralized Exchange Markets - Good Read. This paper suggests that with the smart contract technology and the replicated state machine setting of Ethereum, arbitrage strategies are easier implemented in DEXes than in CEX.
SoK: Oracles from the Ground Truth to Market Manipulation - In this SoK, authors systemize the design alternatives for oracles, showcase attacks, and discuss attack mitigation strategies.
Composing Networks of Automated Market Makers - This paper proposes a mathematical model for AMM composition.
Blockchain Oracle Design Patterns - In this paper, authors will study and analyze blockchain oracles with regard to how they provide feedback to the blockchain and smart contracts.
CeFi vs. DeFi - Comparing Centralized to Decentralized Finance - In this work, authors systematically analyze the differences between CeFi and DeFi, covering legal, economic, security, privacy and market manipulation. Authors also provide a structured methodology to differentiate between a CeFi and a DeFi service.
Mapping the NFT revolution - Market trends, trade networks and visual features.
Fairness in ERC token markets - A Case Study of CryptoKitties.
Non-Fungible Token: Overview, Evaluation, Opportunities and Challenges - In this technical report, authors explore the NFT ecosystems in several aspects.
Cryptoart - Top artists and artworks.
CryptoArtPulse - Live View.
PumpMyGas - Live estimates of gas fees on all major NFT marketplaces.
NonFungible Tracker - NFT tracker.
NFTS TOP - NFT Ranking.
Stablecoins 2.0 - Authors seek to provide a sound foundation for stablecoin theory, with a risk-based functional characterization of the economic structure of stablecoins.
Reducing the Volatility of Cryptocurrencies — A Survey of Stablecoins - Authors discuss how stablecoins help reduce the volatility of cryptocurrencies by surveying different types of stablecoins and their stability mechanisms.
Understand Volatility of Algorithmic Stablecoin: Modeling, Verification and Empirical Analysis - Authors performed a systematic empirical analysis on real transaction activities of the Basis Cash stablecoin to relate theoretical possibilities to market observations.
T-Cash: Transferable Fiat Backed Coins - In this paper authors propose a transferable electronic cash scheme using blockchain technology which allows users to continuously reuse coins within the system.
A Big Data Analysis of the Ethereum Network: from Blockchain to Google Trends - An analysis of the crypto prices and search trends suggests the existence of big players (and not the regular users), manipulating the market after a drop in prices.
A DLT-based Smart Contract Architecture for Atomic and Scalable Trading - In this paper, authors propose an atomic, scalable and privacy-preserving protocol that enables secure and dynamic updates. Then develop a smart contract-based Credit-Note System (CNS) that allows participants to lock funds before a state channel initialisation, which enhances flexibility and efficiency.
Exploring Etherum Data Stores: A Cost and Performance Comparison -In this work, authors examine a comprehensive set of data management approaches for ETH apps and assess the associated cost in gas as well as the retrieval performance.
A Systematic Literature Review on Blockchain Governance - This study comprehensively investigates blockchain governance via 5W1H questions.
A general framework for blockchain analytics - Authors propose a general-purpose framework, supporting data analytics on Bitcoin Ethereum — it allows to integrate block data with data from other sources, and to organise them in a database.
AMR:Autonomous Coin Mixer with Privacy Preserving Reward Distribution - In this work, authors propose the first censorship resilient mixer, which can reward its users in a privacy-preserving manner for participating in the system.
Technology Review of Blockchain Data Privacy Solutions- This report aims to review existing enterprise blockchain technologies: EOSIO powered systems, Hyperledger Fabric and Besu, Consensus Quorum, R3 Corda and Ernst and Young’s Nightfall.
Blockchain Systems, Technologies and Applications: A Methodology Perspective - First, this article introduces how blockchain works, the research activity and challenge, and illustrates the roadmap involving the classic methodology with typical blockchain use cases and topics. Second, in blockchain system, how to adopt stochastic process, game theory, optimization, machine learning and cryptography to study blockchain running process and design blockchain protocol/algorithm are discussed in details.
Ethna: Analyzing the Underlying Peer-to-Peer Network of the Ethereum Blockchain - Ethna implements a novel method that accurately measures the degrees of Ethereum nodes.
Community Detection in Blockchain Social Networks - A novel community detection algorithm which is designed for low-rank signals on graph can help find users’ communities based on user-token subscription.
Block Access Control in Wireless Blockchain Network: Design, Modeling and Analysis - The results show that BAC approaches can help the network to achieve a high transaction throughput while improving block utilization and saving computational power. Meanwhile, the trade-off between transaction throughput and block utilization is demonstrated, which can act as a guidance for practical deployment of blockchain.
Towards External Calls for Blockchain and Distributed Ledger Technology - In this paper authors show that this belief is preconceived by demonstrating a method that enables blockchain and distributed ledger technologies to perform calls to external systems initiated from the blockchain/DLT itself.
Managing Blockchain Systems and Applications: A Process Model for Blockchain Configurations - Authors demonstrate the applicability of the proposed blockchain configuration process model on four blockchain projects
A Note on Optimal Fees for Constant Function Market Makers - Authors present framework that can be used to compute optimal fees for real world pools using past trade data.
Reward Mechanism for Blockchains Using Evolutionary Game Theory - In this paper, authors develop a reward mechanism framework that could apply to many PoS blockchains.
Summing Up Smart Transitions - In this paper, authors present a generalization of first-order logic which can express the unbounded sum of balances.
100+ Metrics for Software Startups - A Multi-Vocal Literature Review - Using data in the form of metrics can help software startups to make the right decisions amidst uncertainty and limited resources.
Blockchain Networks: Data Structures of Bitcoin , Monero, Zcash, Ethereum, Ripple and IOTA - Authors discuss how blockchain data can be abstracted as various types of networks, and how network abstractions used to reap insights into the structure.
Decentralized Finance: On Blockchain- and Smart Contract-Based Financial Markets - Written by Fabian Schar, gives an overview of blockchain based markets with technical details but in a digestable format; great paper for new comers to the space.
Dynamical Analysis of the EIP-1559 Ethereum Fee Market- Authors perform a thorough analysis of the resulting fee market dynamic mechanism via a combination of tools from game theory and dynamical systems.
Stochastic Properties of EIP1559 Basefees - Authors explain the new pricing mechanism for the Ethereum developed to bring stability to fluctuating gas prices.
Transaction Fee Mechanism Design for the Ethereum Blockchain: An Economic Analysis of EIP-1559 - This report assesses the game-theoretic strengths and weaknesses of the proposal and explores some alternative designs.
Quantifying Blockchain Extractable Value: How dark is the forest? - Authors provide evidence that miners already extract Miner Extractable Value (MEV), which could destabilize the blockchain consensus security, as related work has shown.
Flash Boys 2.0: Frontrunning, Transaction Reordering, and Consensus Instability in Decentralized Exchanges - Introduces the concept of MEV, the work highlights the large, complex risks created by transaction-ordering dependencies in smart contracts and the ways in which traditional forms of financial-market exploitation are adapting to and penetrating blockchain economies.
Flashbots: MEV in Eth2 - In this post, authors study transaction ordering in eth2 and analyze MEV-enabled staking yields. Then they find that MEV will significantly boost validator rewards but may reinforce inequalities among participants of eth2. Authors also discuss qualitative aspects of MEV in eth2 such as the potential dynamics that will unfold between its largest stakeholders like exchanges and validator pools.
A Survey on Blockchain Interoperability: Past, Present, and Future Trends - In this post, authors study blockchain interoperability techniques and solutions, providing a holistic overview of blockchain interoperability, paving the way for systematic research in this domain.
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SOFAJRaft 2019 年 4-7 月开发计划 (p1) Telnet 服务(或其他,越简单越好),作为一种在线排查问题的手段,主要提供以下几个功能 Raft_stat: 以 node 节点为 root,能列出大部分甚至所有相关 stat Metrics: 展示当前节点最新的所有 metrics 指标度量(虽然日志里有相关数据但是相对分散) (p1) 扩展点:引入 SPI 机制,先列出几个扩
Access Road 帮助您了解在复杂的信息系统访问权限,受到用户平均友好,功能强大的图表。它提供了为用户非常基本的功能设置,没有数据的更新。它可以让你的模式和显示一些预定义的操作系统和简单的软件,建模和显示有关的任何内容之间的访问权限图形的意见,并说明这些权利。
Ultimate DeFi & Blockchain Research Base Here we collect and discuss the best DeFI & Blockchain researches and tools - contributions are welcome. Feel free to submit a pull request, with anything from
问题内容: 我正在尝试实现Google的 snaptoroad API。但是我没有任何输出。我正在使用golang进行实施。我的代码如下: 此代码产生的输出是 返回空白输出。有人指出我在这里犯的错误吗?提前致谢。 问题答案: 您的代码很好,但是您的API密钥似乎未激活。请访问googleAPI仪表板 以启用它。 您可以随时检查它是否正常运行:https : //roads.googleapis.c
andaily-developer andaily-developer, 源自andaily开发过程中使用的scrum工具. 运行环境 JDK 1.7 + MySql 5.5 + Tomcat 7 + 角色定义 在系统中定义了4种角色: Super Man, Product Owner, Scrum Master 与 Scrum Member, 介绍如下 Super Man(类似系统管理员), 在
Flutter Developer Quest,这是一款完全由 Flutter 构建的游戏!该游戏已经在 App Store 和 Google Play 上免费提供。另外,它是完全开源的! 简而言之,Flutter Developer Quest 是一款基于屏幕进行交互的 RPG 类游戏,您可以在其中组建一个软件工程师团队,制作 Flutter 应用。游戏展示了许多最新的 Flutter 功能,还