DeFi
Understanding Smart Contracts: The Backbone of Secure Transactions in DeFi

Imagine a world where promises are kept and honored, where financial products are transparent and democratized, all without any intermediaries. This transformation is underway and is taking a leading position in the financial landscape with decentralized finance (DeFi). At the heart of this transformation are smart contracts self-executing, tamper-proof agreements that automate complex transactions. These advancements are crucial for the DeFi ecosystem, promising a future where financial transactions are more secure, accessible, and transparent. Smart contracts are based on blockchain Networks, especially public and permissionless networks like Ethereum. Understanding cryptography is essential for the foundational technology that it is. What are smart contracts?
Smart contracts are self-executing contracts coded in software. They automatically apply and execute when predetermined conditions are met, eliminating intermediaries. This reduces costs and minimizes the risk of human error and fraud. Introduced by cryptographer Nick Szabo in the 1990s, smart contracts have become an integral part of blockchain platforms like Ethereum.
These contracts operate on an “if-then” logic. For example, if a buyer sends the required quantity of cryptocurrency To the seller, the smart contract automatically transfers ownership of the digital asset. This process is transparent, immutable, and permissionless, meaning it cannot be changed once deployed. They enable atomic settlements (ensuring that transactions are fully completed or not at all) and composability, allowing different DeFi protocols to seamlessly interact. Imagine this entire process applied to every financial asset class, where it’s not just crypto, but tokenized representations of underlying assets.
Smart contracts can streamline settlements and payments, reducing the time and costs associated with these transactions by eliminating intermediaries. They enable tokenization and the fragmentation of assets, transforming them into digital tokens that can be easily traded and held in smaller units, enabling broader participation and increased liquidity. They can also transform complex financial products such as derivatives and structured products, which currently involve significant counterparty risk and require extensive oversight. By automating these processes, smart contracts improve efficiency, transparency and security, paving the way for a more resilient and accessible financial ecosystem.
Applications in DeFi
DeFi leverages smart contracts to create decentralized financial services that are accessible to anyone with an internet connection. These applications range from payment networks and lending platforms to decentralized exchanges, automated market makers, and structured financial products.
Decentralized Exchanges (DEX)
- Traditional stock exchanges like the NYSE or NSE operate with brokers and clearing houses that connect buyers and sellers. Transactions often take several days to settle and involve multiple intermediaries.
- DeFi platforms like Uniswap use smart contracts to allow users to swap tokens directly from their wallets. These platforms provide liquidity pools where users can contribute assets and earn fees on trades. This further eliminates the middleman, making trades faster and more cost-effective. Atomic settlements ensure that trades are either fully completed or not completed at all, eliminating the risk of partial execution and increasing security.
Regulation of securities
- Settling securities transactions in traditional financial systems (TradFi) involves a complex process involving brokers, clearing houses, and custodians. This process can take several days and has multiple points of failure and risks of error or fraud.
- Smart contracts automate and accelerate the settlement process, ensuring near-instant settlement once conditions are met. This reduces the time and costs involved while increasing transparency and security. Composability allows different DeFi protocols to interact and build on each other, making it possible to efficiently create complex financial structures and products. For example, users can leverage assets from one protocol to obtain liquidity in another, all managed seamlessly via smart contracts.
Digital Asset Structured Products
- TradFi structured products such as hedge funds, algorithmic funds or index ETFs are managed by financial institutions and require significant oversight, management fees and regulatory compliance. These products often lack transparency, leading to inefficiencies and higher costs.
- In DeFi, structured products can be created using smart contracts, allowing users to create and invest in complex financial products without an intermediary. These products are fully transparent, with all transactions and holdings visible on the blockchain. Smart contracts manage the entire lifecycle of these products, from asset creation and management to yield distribution. Most importantly, they are permissionless, meaning users can deposit and trade at will without introducing counterparty risk. This automation reduces costs, improves transparency, and enables the creation of more innovative financial products.
Security and custody
Smart contracts offer significant benefits in terms of security and self-custody of financial transactions. Unlike traditional financial systems that rely on intermediaries, which can be points of failure, smart contracts allow users to maintain control over their assets. Transactions are executed automatically and transparently, reducing the risk of fraud.
Additionally, smart contracts are designed to be tamper-proof. Once deployed, they operate exactly as programmed, with no possibility of third-party interference. This ensures that contractual obligations are met without requiring trust between the parties.
However, despite their potential, smart contracts are not without challenges. One of the major risks is the possibility of bugs or vulnerabilities in the code. These flaws can be exploited by malicious actors, leading to substantial financial losses. For example, in the Poly Network hack in 2021, an attacker exploited a vulnerability in the smart contract code, resulting in the theft of over $600 million. These risks can be mitigated by conducting comprehensive security audits of the smart contract code and implementing several interventions to reduce single points of failure.
Smart Contracts and the Future of Finance
Improving the next generation of DeFi relies on two key areas: interoperability between blockchains and the integration of artificial intelligence (AI). Better interoperability will allow DeFi protocols to interact seamlessly, increasing the scalability and ease of use of DeFi platforms. This will attract more users and capital, facilitating the creation of more complex financial products. As interoperability increases, smart contracts will execute transactions and operations across multiple blockchains, fostering a more connected financial ecosystem.
AI can significantly improve smart contracts by enabling more sophisticated decision-making and predictive analytics. AI could assess borrowers’ creditworthiness in real time, enabling more accurate lending decisions. Additionally, AI can help create tokenized structured products that combine predictive analytics with autonomous smart contract execution, resulting in innovative financial solutions.
Smart contracts are essential to the security and automation of transactions in DeFi. Their ability to enforce agreements in a transparent and immutable manner offers a compelling alternative to traditional financial systems. Despite the challenges, the continued development and integration of smart contracts, coupled with advances in AI and interoperability, will advance the DeFi ecosystem, paving the way for a safer and more inclusive financial future.
(The author Srikumar Misra is the founder of the Aarnâ Protocol. The views expressed are his own)
(Disclaimer:The recommendations, suggestions, views and opinions expressed by the experts are their own. They do not represent the views of the Economic Times)
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(Disclaimer: The opinions expressed in this column are those of the author. The facts and opinions expressed herein do not reflect the views of www.economictimes.com.)
Fuente
DeFi
Haust Network Partners with Gateway to Connect to AggLayer

Dubai, United Arab Emirates, August 1, 2024, Chainwire
Consumer adoption of cryptocurrencies is a snowball that is accelerating by the day. More and more people around the world are clamoring for access to DeFi. However, the user interface and user experience of cryptocurrencies still lag behind their fundamental utility, and users lack the simple and secure access they need to truly on-chain products.
Haust Network is a network and suite of products focused on changing this paradigm and bringing DeFi to the masses. To achieve this goal, Haust Network has announced its far-reaching partnership with bridgeseasoned veterans in rapidly delivering revolutionary blockchain utilities for projects. The Gateway team empowers blockchain developers to build DAOs, NFT platforms, payment services, and more. They drive adoption of crypto primitives for individuals and institutions around the world by helping everyone build their on-chain presence.
Gateway specializes in connecting sovereign blockchains to the Aggregation Layer (AggLayer). The AggLayer is a single unified contract that powers the Ethereum bridge of many disparate blockchains, allowing them all to connect to a single unified liquidity pool. The AggLayer abstracts away the complexities of cross-chain DeFi, making tedious multi-chain transactions as easy for the end user as a single click. It’s all about creating access to DeFi, and with Polygon’s technology and the help of Gateways, Haust is doing just that.
As part of their partnership, Gateway will build an advanced zkEVM blockchain for Haust Network, leveraging its extensive experience to deploy ultra-fast sovereign applications with unmatched security, and enabling Haust Network to deliver its products to its audience.
The recently announced launch of the Haust Wallet is a Telegram mini-app that provides users with access to DeFi directly through the Telegram interface. Users who deposit funds into the wallet will have access to all standard send/receive services and generate an automatic yield on their funds. The yield is generated by Haust Network’s interconnected network of smart contracts, Haustoria, which provides automated and passive DeFi yielding.
As part of this partnership, the Haust Network development team will work closely with Gateway developers to launch Haust Network. Gateway is an implementation provider for Polygon CDK and zkEVM technology, which the Haust wallet will leverage to deliver advanced DeFi tools directly to the wallet users’ fingertips. Haust’s partnership with Gateway comes shortly after the announcement of a high-profile alliance with the Polygon community. Together, the three will work to build Haust Network and connect its products to the AggLayer.
About Haust Network
Haust Network is an application-based absolute liquidity network and will be built to be compatible with the Ethereum Virtual Machine (EVM). Haust aims to provide native yield to all users’ assets. In Telegram’s Haust Wallet, users can spend and collect their cryptocurrencies in one easy place, at the same time. Haust operates its network of self-balancing smart contracts that interact across multiple blockchains and then efficiently funnel what has been generated to Haust users.
About Gateway
bridge is a leading white-label blockchain provider that offers no-code protocol deployment. Users can launch custom blockchains in just ten minutes. They are an implementation provider for Polygon CDK and have already helped projects like Wirex, Gnosis Pay, and PalmNFT bring new utility to the crypto landscape.
About Polygon Labs
Polygon Laboratories Polygon Labs is a software development company building and developing a network of aggregated blockchains via the AggLayer, secured by Ethereum. As a public infrastructure, the AggLayer will aggregate the user bases and liquidity of any connected chain, and leverage Ethereum as the settlement layer. Polygon Labs has also contributed to the core development of several widely adopted scaling protocols and tools for launching blockchains, including Polygon PoS, Polygon zkEVM, and Polygon Miden, which is currently under development, as well as the Polygon CDK.
Contact
Lana Kovalski
haustnetwork@gmail.com
DeFi
Ethena downplays danger of letting traders use USDe to back risky bets – DL News

- Ethena and ByBit will allow derivatives traders to use USDe as collateral.
- There is a risk in letting traders use an asset partially backed by derivatives to place more bets.
Ethena has downplayed the dangers of a new feature, which will allow traders to put up its synthetic dollar USDe as collateral when trading derivatives, which are risky bets on the prices of crypto assets.
While allowing users to underwrite their trades with yield-bearing USDe is an attractive prospect, Ethena said there is potential risk in letting traders use an asset partially backed by derivatives to place even more derivatives bets.
“We have taken this risk into account and that is why Ethena operates across more than five different sites,” said Conor Ryder, head of research at Ethena Labs. DL News.
The move comes as competition in the stablecoin sector intensifies.
In recent weeks, PayPal grown up the amount of its stablecoin PYUSD in circulation 96%, while the MakerDAO cooperative plans a rebrandingaiming to increase the supply of its DAI stablecoin to 100 billion.
US dollar growth stagnates
It comes as Ethena has lost momentum after its blockbuster launch in December.
In early July, USDe reached a record level of 3.6 billion in circulation.
That figure has now fallen by 11% to around 3.2 billion.
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New uses for USDe could boost demand for Ethena’s products.
This is where the new plan, announcement Tuesday with ByBit, one of its partner exchanges, is coming.
Ethena users create USDe by depositing Bitcoin or Ether into the protocol.
Ethena then covers these deposits with short positions – bearish bets – on the corresponding asset.
This creates a stable support for USDe, unaffected by price fluctuations in Bitcoin or Ether.
Mitigate risks
While using USDe as collateral for derivatives trading is proving popular, it is unclear what the effects will be if the cryptocurrency market experiences major fluctuations.
Using derivatives as collateral to place more bets has already had disastrous effects.
In June 2022, Lido’s liquid staking token stETH broke its peg to Ether following the fallout from the Terra collapse.
Many traders who used looping leverage to increase their stETH staking yields were liquidated, creating a cascade that caused the price of Ether to drop by more than 43%.
Ethena Labs founder Guy Young said: DL News His office and his partners have taken many precautions.
Ethena spreads bearish bets supporting the USDe across the five exchanges it partners with.
According to Ethena, 48% of short positions supporting USDe are on Binance, 23% on ByBit, 20% on OKX, 5% on Deribit, and 1% on Bitget. website.
In doing so, Ethena aims to minimize the impact of an unforeseen event on a stock market.
The same theory applies to the distribution of risks across different supporting assets.
Fifty percent of USDe is backed by Bitcoin, 30% by Ether, 11% by Ether liquid staking tokens, and 8% by Tether’s USDT stablecoin.
Previous reviews
Ethena has already been criticised regarding the risks associated with USDe.
Some have compared USDe to TerraUSD, an undercollateralized stablecoin that collapsed in 2022.
“It’s not a good design for long-term stability,” said Austin Campbell, an assistant professor at Columbia Business School. said as the USDe launch approaches.
Young replied to critics, saying the industry needs to be more diligent and careful when “marketing products to users who might not understand them as well as we do.”
Ethena has since added a disclaimer on its website stating that USDe is not the same as a fiat stablecoin like USDC or USDT.
“This means that the risks involved are inherently different,” the project says on its website.
Tim Craig is DL News DeFi correspondent based in Edinburgh. Feel free to share your tips with us at tim@dlnews.com.
DeFi
Cryptocurrency and defi firms lost $266 million to hackers in July

In July 2024, the cryptocurrency industry suffered a series of devastating attacks, resulting in losses amounting to approximately $266 million.
Blockchain Research Firm Peck Shield revealed in an X post On August 1, attacks on decentralized protocols in July reached $266 million, a 51% increase from $176 million reported in June.
The most significant breach last month involved WazirX, one of India’s largest cryptocurrency exchanges, which lost $230 million in what appears to be a highly sophisticated attack by North Korean hackers. The attack was a major blow to the stock market, leading to a break in withdrawals. Subsequently, WazirX launched a program in order to recover the funds.
Another notable incident involved Compound Finance, a decentralized lending protocol, which suffered a governance attack by a group known as the “Golden Boys,” who passed a proposal who allocated 499,000 COMP tokens – valued at $24 million – to a vault under their control.
The cross-chain liquidity aggregation protocol LI.FI also fell victim On July 16, a hack resulted in losses of $9.73 million. Additionally, Bittensor, a decentralized machine learning network, was one of the first protocols to suffer an exploit last month, loming $8 million on July 3 due to an attack targeting its staking mechanism.
Meanwhile, Rho Markets, a lending protocol, suffered a $7.6 million breach. However, in an interesting twist, the exploiters research to return the stolen funds, claiming the incident was not a hack.
July 31, reports The Terra blockchain protocol was also hacked, resulting in a loss of $6.8 million across multiple cryptocurrencies. As crypto.news reported, the attack exploited a reentrancy vulnerability that had been identified a few months ago.
Dough Finance, a liquidity protocol, lost $1.8 million in Ethereum (ETH) and USD Coin (USDC) to a flash loan attack on July 12. Similarly, Minterest, a lending and borrowing protocol, saw a loss of $1.4 million due to exchange rate manipulation in one of its markets.
Decentralized staking platform MonoSwap also reported a loss of $1.3 million following an attack that allowed the perpetrators to withdraw the liquidity staked on the protocol. Finally, Delta Prime, another decentralized finance platform, suffered a $1 million breach, although $900,000 of the stolen funds was later recovered.
DeFi
The Rise of Bitcoin DeFi: Then and Now

The convergence of Bitcoin’s robust security and Layer 2 scaling solutions has catalyzed the emergence of a vibrant DeFi ecosystem.
By expanding Bitcoin’s utility beyond simple peer-to-peer payments, these advancements have opened up a new frontier of financial possibilities, allowing users to participate in decentralized lending, trading, and other complex smart contract operations on Bitcoin.
Read on to learn about the rise of Bitcoin-based decentralized finance and how the space has expanded to accommodate a new generation of native assets and features.
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What is DeFi?
Decentralized finance (DeFi) represents a paradigm shift in financial services, offering internet-based financial products such as trading, lending, and borrowing through the use of decentralized public blockchains.
By implementing blockchains, smart contracts, and digital assets, DeFi protocols provide financial services through a decentralized ecosystem, where participants do not have to deal with intermediaries when transacting.
What is Bitcoin DeFi?
The inherent limitations of the Bitcoin mainchain in supporting the intricacies of decentralized finance have created the need to develop smart contract-based Layer 2 solutions.
Additionally, the advent of the Ordinals protocol in 2023, which facilitated the emergence of fungible token standards such as BRC-20 and Runes, catalyzed the growth of DeFi on the Bitcoin blockchain.
This expansion in protocol diversity has broadened the applications of the world’s leading cryptocurrency network beyond the core base-layer use cases around value preservation and transactional capabilities.
Therefore, Bitcoin DeFi has become a nascent sector within the digital asset market, after previously being a missing essential part of the Bitcoin ecosystem.
Bitcoin DeFi in its early days
Integrating decentralized finance (DeFi) concepts into the Bitcoin ecosystem has been a journey of innovation and perseverance. Early attempts to bridge the gap between Bitcoin’s fundamental simplicity and DeFi’s complexities have spawned pioneering projects that, while laying essential foundations, have also encountered significant obstacles.
Colored coins
Colored coins represented an early foray into tokenizing real-world assets on the Bitcoin blockchain. By leveraging the existing network to track ownership of assets ranging from stocks to real estate, this approach highlighted Bitcoin’s potential as a platform beyond digital currency. However, scalability and practical implementation challenges have limited its widespread adoption.
Counterpart
Building on the colored coins, Counterparty has become a platform for creating and trading digital assets, including non-fungible tokens (NFTs), on Bitcoin.
The introduction of popular projects like Rare Pepe NFTs has demonstrated the growing appeal of digital collectibles. However, constraints around user experience and network efficiency have hampered its full potential.
These early experiments, while not fully realizing their ambitions, served as valuable stepping stones, informing Bitcoin DeFi’s subsequent developments. Their challenges highlighted the need for more sophisticated infrastructure and protocols to harness the full potential of decentralized finance on the Bitcoin network.
Bitcoin DeFi Today
Today, building DeFi applications on Bitcoin is primarily done in the realm of Layer 2 (L2) networks. This architectural choice is motivated by the limitations of Bitcoin’s base layer in supporting complex programmable smart contracts.
Bitcoin’s original design prioritized security and decentralization over programmability, making it difficult to develop sophisticated DeFi protocols directly on its blockchain. However, the recent emergence of protocols like Ordinals, BRC-20, and Runes, while not DeFi in their own right, has sparked possibilities for future DeFi-like applications on the main chain.
In contrast, L2 solutions offer a scalable and programmable environment built on Bitcoin, enabling the creation of various DeFi products.
By expanding Bitcoin’s capabilities without compromising its core principles, L2s have become the preferred platform for developers looking to build DeFi applications that encompass trading, lending, staking, and more.
Leading L2 networks such as Lightning Network, Rootstock, Stacks, and Build on Bitcoin provide the infrastructure for these efforts. Some of these L2s have even introduced their own native tokens to the network, further expanding Bitcoin’s DeFi ecosystem.
Essentially, while Bitcoin’s core layer presents challenges for DeFi development, its security and decentralization have provided a foundational layer for the innovative L2 landscape to thrive.
Bitcoin Layer 2 offers a promising path to building a robust and thriving Bitcoin-based DeFi ecosystem that offers trading, staking, lending, and borrowing. All you need is a DeFi Wallet like Xverse to access the new world of decentralized financial services secured by Bitcoin.
Conclusion
The integration of DeFi principles into the Bitcoin ecosystem, primarily facilitated by Layer 2 solutions, marks a significant evolution in the digital asset landscape.
Building on the foundational work of pioneers like Colored Coins and Counterparty, the industry has evolved into more sophisticated platforms like Rootstock, Stacks, and Build on Bitcoin to create a thriving Bitcoin-powered DeFi ecosystem.
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