Transaction not yet indexed

668vXcuTg52HrxGZh7BkvfqkAMgvUAEbavs4mLqVcQfqi4qr4ZMsFn96huNX9cxgcG2dn1EmbUsSMAJhWvqaq4Kx

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