Found 1 биржа where Haven1 is traded for ETH. According to the data on 6 June the most optimal price to exchange H1 for ETH is Ξ0 for 1 Haven1. This rate is fixed at Uniswap V4 (Ethereum) at the maximum trading volume of the pair H1/ETH - 1.3 ETH.
The maximum daily trading volume is observed in the H1/USDT trading pair at MXC and reaches Ξ 9.28 (2.28% of the exchange's total trading volumes) at the price Ξ 0 per 1 H1.