Crypto Weekly Roundup: BlackRock, Fidelity File For Spot ETH ETFs

• Fidelity and BlackRock have filed for spot Ethereum exchange-traded funds (ETF) with the SEC.
• Tether plans to invest $500 million in Bitcoin mining.
• Crypto markets are muted due to U.S. CPI data.
• Robert Kiyosaki recommends buying Bitcoin, gold, and silver.
• BlackRock and Fidelity both filed for spot Ethereum ETFs.
• The dYdX Chain has transitioned to its beta mainnet stage.
• Aave has resumed operations after security vulnerabilities.
• ZeroHash's report highlights renewed trust in the crypto sector.
• OKX is launching its own zkEVM Layer-2 testnet with Polygon Labs.
• CoinShares has secured buying rights to Valkyrie Investments' ETF.
• South Korea's NPS made significant profits on its Coinbase investment.
• Ankr has introduced Rollup as a service in partnership with Optimism.
• Marathon Digital Holdings revealed new strategies for Bitcoin mining.
• Charles Hoskinson proposed a collaboration with Kraken.
• Bithumb is preparing for a public listing on KOSDAQ.
• The developer of Mutant Ape Planet NFT collection pleaded guilty to fraud.
• Solana Labs dismissed CertiK's claims about a security vulnerability.
• Raft fell victim to a security exploit, resulting in a loss of $6.7 million.
• Binance may have lost $27 million worth of stablecoins to a hack.
• A user lost crypto after using a fake version of Skype.

The sentiment in the article is mixed, with positive news about the filing of Ethereum ETFs and renewed trust in the crypto sector, but also negative news about security vulnerabilities and potential hacks.