Beacon API returns state format inconsistent with eth2 (/eth/v2/debug/beacon/states/:state_id)

    does not return ssz format,
    json format is missing fields (next_withdrawal_index, slashings, total_slashing, ...),
    fields are both snake and camel case,
    one field is wrongly named (parent_block_root => parent_root),
    hex format is not normalized (not in pairs or fixed to correct byte length),

Makes merkle witness generation impossible