Transaction not yet indexed

53FfS9C6vziYEdRshqNG9qiAfGS9EDssGBVxQKZjwRe7dJjyzwwfzUaRmdEF1KEJrPopAaiLVK2g8rMSULdQU4Ag

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