Transaction not yet indexed

PLkkVjyariHQT8iVptFXyZa8deA763vpjpsWMJbfE5TTWzz7bmd7ACAKv57uM5J4tVmR7VbWJQuiPQHMB5FHx55

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