Not a DOI

The resolution service at https://doi.org resolves DOIs. You have attempted to resolve core/books/human-evolution-and-the-origins-of-hierarchies/passion-for-equality/2038F25B4C8945B4B4319A5F9B6E838C, which is not a DOI.

core/books/human-evolution-and-the-origins-of-hierarchies/passion-for-equality/2038F25B4C8945B4B4319A5F9B6E838C may be a Handle (DOIs are a special sort of Handle). If core/books/human-evolution-and-the-origins-of-hierarchies/passion-for-equality/2038F25B4C8945B4B4319A5F9B6E838C is a valid Handle you should be able to resolve it at https://hdl.handle.net.