Transaction not yet indexed

21kSo51jwLNQshqMej1YnYPgbCjgpSvgLFyU756ryd8fjmKasqm3C9yf5168tVCAjqmbQipLGtmxaVkDhabpqFr7

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