Source text: Ethereum (ETH) experienced a 3.5% rise but encountered resistance at $3070, according to Chainthink. A 2-hour KDJ death cross was noted, with the K line falling below the D line, indicating potential bearish momentum. The price remains constrained by the Vegas Channel, and trading volume was below the 25-day average, suggesting weak momentum. Traders are advised to monitor resistance near $3100 and support around $2950. Caution is recommended against chasing highs due to poor liquidity and potential price deviations of approximately ±$20. Target language code: pt Translation instructions: This is the news article content. Please maintain the original meaning.