Transaction not yet indexed

642SYeVb6PzF8kJAaU3KSRn48sWajKrZXmvYqv31aGv3E2mEePS1otqnit3QLLCNBK7BRr6RGAP5ffbFF5KhZ3v1

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