Transaction not yet indexed

668FsGmXDMCebF8LJiZeSryA5VYK6BrkXSmcjsLti6jgoUtx5Avi5tREdcmPrPPNvPs2rCLPUXeWdnJdEdU2eexY

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