Check SHA-256 Laravel - laravel

Question

I have a system that requires a homeowner to submit a form about their guest's details. When they submit a form, each will be assigned a unique 6-digit code. This code will be hashed with SHA-256. In the admin's view, there is a list of all submitted forms. I want to do a search function where when I enter the code, the system will look through the hashed code and check if it exists or not.
This is my GuestController:
public function index()
{
//returns admin's view
$guest = Guest::all();
return view('pages.guest.index', compact('guest'));
}
public function store(Request $request)
{
$guest = new Guest;
$guest->code = random_int(100000, 999999);
$guest->hash = hash('sha256', $guest['code']);
$guest->owner_id = Auth::user()->id;
$guest->owner = Auth::user()->name;
$guest->unit = Auth::user()->unit;
$guest->guestname = $request->input('guestname');
$guest->guestphone = $request->input('guestphone');
$guest->guestic = $request->input('guestic');
$guest->guestcar = $request->input('guestcar');
$guest->numberofguests = $request->input('numberofguests');
$guest->datevisit = $request->input('datevisit');
$guest->timevisit = $request->input('timevisit');
$guest->save();
return redirect('show-pass')->with('status', 'Guest Added Successfully');
}
public function search(Request $request)
{
//Get the search value from the request
$search = $request->input('search');
//Search in the code from the list
$guest = Guest::query()
->where('code', 'LIKE', "%{$search}%")
->get();
//Return the search view with the results compacted
return view('pages.guest.search', compact('guest'));
}
This is my search result blade:
<div class="card-body">
#if($guest->isNotEmpty())
#foreach ($guest as $item)
<div class="post-list">
<p>Owner : {{ $item->owner }}</p>
<p>Unit : {{ $item->unit }}</p>
<p>Guest Name : {{ $item->guestname }}</p>
<p>Guest Phone Number : {{ $item->guestphone }}</p>
<p>Guest IC Number : {{ $item->guestic }}</p>
<p>Guest Car Number : {{ $item->guestcar }}</p>
<p>Date : {{ $item->datevisit }}</p>
<p>Time : {{ $item->timevisit }}</p>
</div>
#endforeach
#else
<div>
<h4>No guests with the code was found</h4>
</div>
#endif
</div>
Is what I'm trying to do possible? If yes, how can I edit my search method to be able to do so? May I get some help?