BMAX: pricing “sats now vs sats later” via a mining sharechain (no L1 changes, no custodians, no oracles)

Superficially this seems to have quite some overlap with https://hashpool.dev/. Hashpool aims to solve by issue of valuing probabilistic future mining shares via mining futures, or a marketplace for current value of the mined shares (discounted price now vs. full price in the future when a block is found). How do you see BMAX in relationship with hashpool?