You can see when a procedure was first and most recently compiled with the CREATED & LAST_DDL_TIME columns in *_objects:

create or replace procedure p as
begin
  null;
end;
/

select created, last_ddl_time 
from   user_objects
where  object_name = 'P';

CREATED              LAST_DDL_TIME       
-------------------- --------------------
17-SEP-2025 14:04:58 17-SEP-2025 14:04:58

exec dbms_session.sleep ( 7 );

create or replace procedure p as
begin
  dbms_output.put_line ( 'stuff' );
end;
/

select created, last_ddl_time 
from   user_objects
where  object_name = 'P';

CREATED              LAST_DDL_TIME       
-------------------- --------------------
17-SEP-2025 14:04:58 17-SEP-2025 14:05:05

There doesn't appear to be a documented view that shows the recorded timestamp of remote dependencies however.