Market intelligence platform IntoTheBlock reveals Ethereum's strong on-chain demand zones that support it above $4,000.Key support centers for Ethereum lie in the $3,772 to $3,892 and $3,892 to $4,011 price ranges.Investors purchased 7.2 million ETH at these levels, indicating significant demand.The negative Ethereum Exchange Netflow suggests a trend of accumulation and potential price support.