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Bitcoin Forum > Economy > Marketplace > Service Discussion > Removing Blockchain.info Unconfirmed Transactions W/ Out Bitcoin-QT
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marjamrob (OP)
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July 11, 2013, 02:12:06 PM
 #1
Is it possible to remove unconfirmed transactions, made with blockchain.info, without using bitcoin-qt, from this https://bitcointalk.org/index.php?topic=231309.0 guide. However, I am unable to download the blockchain, because I can't download the blockchain (I only have 5 GBs a month of Wi-Fi). Is there any other way to do this?
jackjack
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July 11, 2013, 02:37:34 PM
 #2
You can double-spend with something else.
On the guide I used bitcoin-qt but you can do it with anything you want. You just have to import the private key (in another blockchaininfo account for example) + spend the transaction.
Own address: 19QkqAza7BHFTuoz9N8UQkryP4E9jHo4N3 - Pywallet support: 1AQDfx22pKGgXnUZFL1e4UKos3QqvRzNh5 - Bitcointalk++ script support: 1Pxeccscj1ygseTdSV1qUqQCanp2B2NMM2
Pywallet: instructions. Encrypted wallet support, export/import keys/addresses, backup wallets, export/import CSV data from/into wallet, merge wallets, delete/import addresses and transactions, recover altcoins sent to bitcoin addresses, sign/verify messages and files with Bitcoin addresses, recover deleted wallets, etc.
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July 11, 2013, 02:39:40 PM
 #3
Quote from: jackjack on July 11, 2013, 02:37:34 PM
You can double-spend with something else.
On the guide I used bitcoin-qt but you can do it with anything you want. You just have to import the private key (in another blockchaininfo account for example) + spend the transaction.

Are you sure that will work - my experience is that once a tx has been seen any attempt to double spend will be ignored by the node that *has* that tx in its memory pool (i.e. you'd need to post it to a node that hasn't yet seen it AFAIA)?
With CIYAM anyone can create 100% generated C++ web applications in literally minutes.

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marjamrob (OP)
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July 11, 2013, 02:50:00 PM
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Quote from: jackjack on July 11, 2013, 02:37:34 PM
You can double-spend with something else.
On the guide I used bitcoin-qt but you can do it with anything you want. You just have to import the private key (in another blockchaininfo account for example) + spend the transaction.

I tried another Blockchain.info account, and it said 0 BTC, same with coinbase.
jackjack
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July 11, 2013, 03:00:45 PM
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I'm not sure about online wallets policies.
I thought blockchain.info would not broadcast 'un-minable' transactions.
Maybe that's wrong. Then you'd need to wait for clients to forget it.

If you can't wait, ask someone to double-spend it for you. (I can't do it before 30 hours)
Own address: 19QkqAza7BHFTuoz9N8UQkryP4E9jHo4N3 - Pywallet support: 1AQDfx22pKGgXnUZFL1e4UKos3QqvRzNh5 - Bitcointalk++ script support: 1Pxeccscj1ygseTdSV1qUqQCanp2B2NMM2
Pywallet: instructions. Encrypted wallet support, export/import keys/addresses, backup wallets, export/import CSV data from/into wallet, merge wallets, delete/import addresses and transactions, recover altcoins sent to bitcoin addresses, sign/verify messages and files with Bitcoin addresses, recover deleted wallets, etc.
marjamrob (OP)
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July 11, 2013, 03:20:29 PM
 #6
Quote from: jackjack on July 11, 2013, 03:00:45 PM
I'm not sure about online wallets policies.
I thought blockchain.info would not broadcast 'un-minable' transactions.
Maybe that's wrong. Then you'd need to wait for clients to forget it.

If you can't wait, ask someone to double-spend it for you. (I can't do it before 30 hours)

It has been around 22 right now, so if it doesn't go through by tonight, I will see about doing that.
marjamrob (OP)
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July 12, 2013, 01:04:34 PM
Last edit: July 12, 2013, 01:50:29 PM by marjamrob
 #7
Quote from: jackjack on July 11, 2013, 03:00:45 PM
I'm not sure about online wallets policies.
I thought blockchain.info would not broadcast 'un-minable' transactions.
Maybe that's wrong. Then you'd need to wait for clients to forget it.

If you can't wait, ask someone to double-spend it for you. (I can't do it before 30 hours)

Would you be willing to do that for me? They are over 30 hours now.

EDIT:

They all just disappeared, and I got my money back... Don't really know what happened.
jackjack
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July 14, 2013, 12:27:17 PM
 #8
Sorry, the thread didn't show in my watchlist, don't know why.
I'm glad you got them back.
Maybe bc.info deletes the tx if it doesn't get included in a block for too long. Smart policy.
Own address: 19QkqAza7BHFTuoz9N8UQkryP4E9jHo4N3 - Pywallet support: 1AQDfx22pKGgXnUZFL1e4UKos3QqvRzNh5 - Bitcointalk++ script support: 1Pxeccscj1ygseTdSV1qUqQCanp2B2NMM2
Pywallet: instructions. Encrypted wallet support, export/import keys/addresses, backup wallets, export/import CSV data from/into wallet, merge wallets, delete/import addresses and transactions, recover altcoins sent to bitcoin addresses, sign/verify messages and files with Bitcoin addresses, recover deleted wallets, etc.
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