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/homo-sapiens-in-perspective/C784E012D98C71641B479D7DEE94F019, which is not a DOI.

core/books/human-evolution-and-the-origins-of-hierarchies/homo-sapiens-in-perspective/C784E012D98C71641B479D7DEE94F019 may be a Handle (DOIs are a special sort of Handle). If core/books/human-evolution-and-the-origins-of-hierarchies/homo-sapiens-in-perspective/C784E012D98C71641B479D7DEE94F019 is a valid Handle you should be able to resolve it at https://hdl.handle.net.