3

Here's an output of listtransactions method

[
{
"account" : "",
"address" : "mz2A28GQxWrYgMn2z9pRqaUFNqTMyhk1sJ",
"category" : "receive",
"amount" : 6.30000000,
"confirmations" : 157,
"blockhash" : "00000000befa3ef184f6c3cdec8814b945bad9e3f7ce9eb38e3102bcf4c030c0",
"blockindex" : 9,
"blocktime" : 1397675516,
"txid" : "f517350f088d235878ecab8d5241f0b6e59a4081eec22031c449d0d01d79ed66",
"walletconflicts" : [
],
"time" : 1397672026,
"timereceived" : 1397672026
}
]

what's walletconflicts, it's array of what ? transaction ids, maybe ? i couldn't find any documentation even in Bitcoin console.

2

This is new. It is a field, which contains txids which hold the same data as the original transaction (but has different txids).

See ID-malleation bug

  • Does this indicate a double-spend attack then? – ethought Aug 19 '14 at 13:14
  • No, it is not technically a double-spend, but it might indicate some malicious behaviour. – Maciej Mączko Aug 19 '14 at 18:43
0

If you have two or more transactions in your wallet that spend the same output, that field will list the other ones. That should normally never happen, because bitcoin-qt will refuse to create a transaction that spends an already-spent output. But if your wallet is corrupt or there's some other problem, it might happen.

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