Transaction not yet indexed

Nb6tM3pxPUismNACYHmSajFTdUDMS2aCNX5AtKprV1vBMjEfE8KP4XoJL9Z79qYxHfpJaxtL4v16b5PMaahTMHd

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