Blockchain.info wallet import "reversed" my transaction change.

DannyHamilton

legendary

Activity: 3472

Merit: 4801

Quote from: dbbit on September 13, 2013, 06:30:30 AM

Figured it out.

pywallet.py --dumpwallet

Then paste the output into "Import Wallet" in blockchain.info.

Another option would have been to send the entire balance from your -QT wallet to a single receive address in your -QT wallet prior to importing. That way none of the balance would have been associated with a "change" address. I'm surprised that the import doesn't recognize "change" addresses. Hopefully Piuk fixes that in the near future. It sure seems like an oversight on his part.

jackjack

legendary

Activity: 1176

Merit: 1280

May Bitcoin be touched by his Noodly Appendage

https://en.bitcoin.it/wiki/Change

Mitchell

copper member

Activity: 3948

Merit: 2201

Verified awesomeness ✔

Quote from: dbbit on September 13, 2013, 05:41:40 AM

So I think somehow blockchain.info missed the "return addresses" (what are these called anyway?) during the import.

PS: Why are the return addresses for the change unique addresses, and not just the originating address?

They are called change addresses and are used to increase security and anonymity.

dbbit

sr. member

Activity: 322

Merit: 250

Figured it out.

pywallet.py --dumpwallet

Then paste the output into "Import Wallet" in blockchain.info.

dbbit

sr. member

Activity: 322

Merit: 250

I've imported a bitcoin-qt wallet.dat into blockchain.info.

For some reason, blockchain.info ignore the "change" that you get as part of a transaction. So now the balance is way off.

E.g if you look at:
https://blockchain.info/tx/2f2b2b49523fe9c964115efdf7fc2254caa52dba33055f1ab500cccae900ccbd

I spent BTC 0.25 from an address with BTC 1 in it, so I got BTC 0.75 in change. Yeah, BlockChain.info just see it as I spent BTC 1. Uhh... Roll Eyes

So I think somehow blockchain.info missed the "return addresses" (what are these called anyway?) during the import.

How do I fix it?

PS: Why are the return addresses for the change unique addresses, and not just the originating address?

Topic: Blockchain.info wallet import "reversed" my transaction change. (Read 953 times)