Transaction not yet indexed

4E88kQeyYnfZP2WPQ9bho3c7jHQYjA3kBn9J6pfSYsNE6Hgwdv88ZsS163Ckir3oZqYVVDZcn9D1MY4dftLyKMw8

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