Tag: Lamport

The total cryptocurrency market cap rose 5.22% weekly to $2.62 trillion, with on-chain data showing structural divergence: Ethereum DEX trading volume surged while total DeFi TVL declined. U.S. Bitcoin and Ethereum spot ETFs continued to see net inflows, and stablecoin market cap saw a slight increase.

An open-source AI tool warned of cross-chain bridge configuration risks in Kelp DAO 12 days before the vulnerability occurred. The incident ultimately resulted in a $292 million loss and affected protocols like Aave, exposing systemic flaws in DeFi cross-chain architecture.

Hong Kong has released the world's first tokenized asset trading framework, allowing related products to be traded on secondary markets. Meanwhile, affected by the rsETH attack incident, Aave's TVL has plummeted by $8.45 billion within two days, dragging down the total value locked (TVL) across the entire DeFi ecosystem.

Coinbase UK launches a crypto collateralized lending service, allowing users to borrow USDC using assets like BTC as collateral.

Japanese stablecoin issuer JPYC has completed an additional 2.8 billion yen Series B funding round, bringing its total funding to 4.6 billion yen. The funds will be used for system development, business expansion, and strategic investments. The company is actively expanding its partnership network and deploying in scenarios such as cross-border payments.

BroadChain learned that at 17:30 on April 20, according to PANews, Coinbase announced that its UK users can now use their held Bitcoin, Ethereum, and cbETH as collateral to borrow USDC within 1 minute via the open-source lending protocol Morpho on the Base network. The loan interest rate for this product is dynamically adjusted every few seconds based on market conditions, with a maximum loan amount of up to $5 million for BTC collateral. Additionally, Coinbase One members can receive an annualized USDC yield reward of up to 3.5%. This service was first launched in the US in January 2025, and Coinbase plans to expand it to more countries in the future.

BroadChain learned that at 17:16 on April 20, according to TechFlow, Coinbase announced the launch of its crypto-backed lending service in the UK. Users can use Bitcoin, Ethereum, and cbETH as collateral to borrow USDC within 1 minute. This service is powered by the open-source lending protocol Morpho on the Base chain. The product was first launched in the US in January 2025. As of April 14, 2026, the total loan amount issued through Coinbase's integration with Morpho has exceeded 2.17 billion USDC. Users can check their loan health status within the Coinbase App.

BroadChain learned that at 16:30 on April 20, according to PANews, the situation in the Middle East is fluctuating, the Strait of Hormuz has been closed again, market risk aversion sentiment is heating up, and Brent crude oil opened up 7.9%. Bitcoin retreated from its high of $78,400 to the range of $74,000-$75,000. CME left two gaps at 77.3K and 67.2K, becoming key gravitational points for short-term prices. Bearish views believe that geopolitical risks and weakening technicals resonate, and the price may seek a bottom downward; bullish views emphasize buying support exists near $72,000, and the chip structure is being repaired. Ethereum is under pressure due to the broader market correction and the Kelp DAO cross-chain bridge hack incident.

BroadChain learned that at 16:16 on April 20, according to TechFlow, independent analyst Markus Thielen's chart analysis shows that since October last year, Bitcoin has been continuously adjusting, while Tether's market cap has long hovered around $183 billion, indicating a lack of new capital inflow. Recently, the situation has changed, with Tether's circulation increasing by approximately $3 billion, its market cap recovering to $187 billion, and the overall stablecoin market cap rising, showing signs of market liquidity recovery. Analysts point out that, combined with other capital flow indicators, the signal direction is trending positive but still in its early stages. Such marginal improvements often precede price performance. If this trend continues in the coming weeks, it is expected to support the Bitcoin price.

BroadChain learned that at 16:16 on April 20, according to Bitcoinist, David Schwartz, former Chief Technology Officer of Ripple, discovered a widespread structural issue while evaluating the DeFi cross-chain bridge design for Ripple's stablecoin RLUSD: although system designs typically include robust security mechanisms, teams often opt for simplified configurations in pursuit of operational convenience and rapid expansion, which may be the core trigger for recent security incidents like KelpDAO/rsETH. Schwartz pointed out that many bridging solutions can theoretically effectively defend against similar attacks, but these critical security features are often 'recommended' to be bypassed due to increased operational complexity.

BroadChain learned that at 15:30 on April 20, according to PANews, Spark's strategic lead monetsupply.eth stated that the protocol has been deprecating low-usage assets such as rsETH since January and continuously tightening its collateral scope and feature set. As Spark set a relatively high maximum borrowing rate for the SparkLend ETH market, while Aave lowered its maximum ETH borrowing rate to below 10%, users shifted to borrowing on Aave, causing Spark to lose significant business and revenue over the past year. However, in the current market environment, SparkLend still maintains sufficient ETH withdrawal liquidity, while Aave on the main

BroadChain learned that at 15:30 on April 20, according to TechFlow, on April 20, Spark strategy lead monetsupply.eth stated that Spark has long adhered to setting a higher borrow cap rate for the SparkLend ETH market. While this move caused a significant number of users to switch to Aave, resulting in considerable business and revenue loss, the current market liquidity crisis demonstrates the prudence of this strategy. Currently, Aave's ETH borrowing utilization rate has reached 100% across multiple chain markets including Mainnet, Arbitrum, Plasma, Mantle, and Base, leading to liquidity exhaustion. This has resulted in depositors being unable to withdraw and ETH collateral...