···8585- Initial function that was run by the given process
8686- PIDs to all ancestors of the given process
87878888-Different processes abstractions (like `get_server`/`GenServer`, Elixir's
8888+Different processes abstractions (like `gen_server`/`GenServer`, Elixir's
8989`Task`, etc.) can store even more metadata there, `logger` store process
9090metadata in process dictionary, `rand` store state of the PRNGs in the process
9191dictionary. it's used quite extensively by some OTP features.