Transaction not yet indexed

668Dt6afn21HgbGFmcpGPZTRoSS3DAYCgBHBa23SfnnSzbipumLdArKjqWRTSbWoZafT3u2DmwPHuozRBH4nsJmm

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