Transaction not yet indexed

53u3fbsmMZMMnNqthcLU5Y3xLC7mVkPq4F18L3wv4fx8JpVGf5QkWwPUy3Ue5yUtddkKzJmeLskvciZDyGPVFbkR

The transaction signature is valid but not yet indexed by this RPC node, or the transaction failed before inclusion.