June 29 (Cointime) -The decentralized derivatives protocol dYdX releases (dYdX Chain) V4 update and will launch the public testnet at 1:00 on July 6, Beijing time. This update includes advanced features, validator and market maker documents, etc. Users can integrate, API, Websocket and Web frontend for testing. In the public testnet, users can view information such as order books, price charts, depth charts, and perform history operations. The public testnet will launch alongside Bitcoin and Ethereum markets, with 30 more markets expected.

June 28 (Cointime) - MicroStrategy, the world's largest Wall Street Bitcoin holder, has purchased another $340 million worth of Bitcoin, bringing their total holding to 152,333 Bitcoin. Some members of the crypto community are concerned about MicroStrategy's plan for acquiring and holding BTC, with speculation about when they will sell off their holdings.

June 28 (Cointime) - Bitcoin's price is being driven up by a combination of positive factors, leading to a growing bullish sentiment. Crypto analyst Willy Woo has predicted a potential price target of around $310,000 if asset managers such as BlackRock and Fidelity were to inject 5% of their Assets Under Management into Bitcoin.

June 28 (Cointime) - SYS Labs, a product suite powered by Syscoin in the Web3 ecosystem, has announced the launch of Rollux, an EVM Layer-2 solution that aims to enhance the performance of Ethereum network applications. Rollux leverages the power of Bitcoin to introduce a unique approach to scaling Ethereum, making SYS Labs stand out from its competitors.

June 28 (Cointime) - Explore the recent trend of more Bitcoin being withdrawn than deposited and the implications for investor behavior and market liquidity. Tracking Bitcoin's balance on exchanges is important, but analyzing the volumes of deposits and withdrawals provides unique insights.

June 28 (Cointime) - On June 28, Bitcoin experienced another test of its $30,000 support level as the US Federal Reserve remained hawkish on inflation. Fed Chair Jerome Powell reiterated the consensus for further interest rate hikes this year during a discussion with other central bank heads.

June 28 (Cointime) - Presidential candidate Robert F. Kennedy Jr. has pledged to defend US citizens' right to hold and use Bitcoin, and his campaign will be the first to accept Bitcoin donations. He believes that Bitcoin is a bulwark against totalitarianism and can lead to more transparent and democratic government institutions.

June 28 (Cointime) - As the Litecoin halving day approaches, the network is experiencing a surge in activity, with an increase in the number of active LTC addresses. However, it is important to note that a small number of addresses control the majority of LTC in circulation.

June 28 (Cointime) - New research from TRM Labs shows that cybercriminals are using Bitcoin less frequently as their primary method of moving illicit funds. Instead, they are turning to fiat channels or other cryptocurrencies due to the rise of the multichain era.

June 28 (Cointime) - MicroStrategy, led by Michael Saylor, has purchased 12,333 bitcoin for $347 million in cash between April 29 and June 27. This brings the company's total bitcoin holdings to 152,333, valued at over $4.6 billion at current prices. The firm's shares were down 1% at $321.44 during pre-market trading, reflecting the decline in bitcoin, which was down over 1% at $30,288.