You'd need to do that from a shell script (or batch file)... using the appropriate scripting language for your OS.

Is there any reason why you can't do it in the GUI?

I hate to be the bearer of bad news... but your 2nd transaction is not a "double spend"... as it doesn't try to use the same input as the first transaction... nor is it a "child pays for parent" (CPFP)... as it doesn't try to spend an output from the first transaction.

It is just a another transaction... you're effectively just sending to 0.037 btc to 1B4Vu69fxT5sznJaFDtLXoQJkD7mtzVw8B over two transactions. 

Also, your assertion that you used "more than double the original fee" is flawed... as your 2nd transaction is about 1.66x the data size of the first... 374 (bytes) vs. 226 (bytes)... Fees are actually calculated on a "satoshis per byte" basis, so your actual fees paid are 66.845 sat/B for the 2nd... and 44.248 sat/B for the first... neither of which is even vaguely close to the current recommended fees (has been 200+ sat/B for over a week now)

MultiBit Classic is outdated and unsupported. You should switch to a more current wallet that utilises dynamic fees (eg. Electrum) to prevent this from happening again.

One last thing, Don't use MultiBit HD until they fix the massive bug that is causing a lot of users a lot of grief at the moment...

It is resulting in a "password did not unlock the wallet" error and prevents you from opening your wallet and getting access to your coins! I believe the Devs are aware of the issue and trying to fix it, but is currently unresolved

No... I'm saying your knowledge and usage of the Bitcoin network and general attitude is.

You don't pay $1 for 7 day parcel post and expect FEDEX overnight express courier delivery.. But that is essentially what you seem to believe you are entitled to.

So you can either learn how it works and pay appropriate fees for the level of service you require... or DOGEcoin network is over there ---->

Put your transaction ID into blockchain.info and check these fields:

"Size: XXXX (bytes)" and "Fee per byte: YYY.YYY sat/B"

Given you've stated $8 (around 0.00384 btc) and $1.7 (around 0.00082 btc) I am going to go ahead and guess that the "size" is probably something over 680 bytes (you've been collecting small payments into your wallet, most likely from faucets or cloud mining etc)... and you have at least 4 or 5 inputs into your transaction... and that your fee is probably 120 sat/B or less...

Feel free to post your Transaction ID here and we can investigate if it is something other than a low fee (maybe unconfirmed parent transactions) that is preventing your transaction from being confirmed.

For future reference, telling us the absolute value of the fee paid (especially in $) is pretty meaningless... 1. the price of bitcoin varies, so the $ amount is constantly changing and 2. fees are calculated on a "satoshis per byte" basis, so you need to specify the "sat/B" fee amount to have any real relevance...

The Electrum GUI does support it... and it is almost as easy to do as doing a normal send...



As the little popup says, you just type the addresses in the "Pay To" box put a comma and then the amount you want to send. Check this post from the Electrum Docs for an example: http://docs.electrum.org/en/latest/faq.html#can-i-do-bulk-payments-with-electrum

NOTE: the amount will be in the units that you're set in your "Tools->Preferences->Appearance"... BTC, mBTC or bits.

TLDR:
1. your transaction is 846 bytes, which is close to 3.5-4x the size of a normal transaction... so your fee goes up proportionally...
2. you apparently are too cheap/lazy/ignorant to pay a proper fee in the first place, so your transaction gets stuck (hint: Make sure you're running latest Electrum 2.8.2 and turn dynamic fees on)
3. you seem to think your "special snowflake" status means your low fee transaction should be confirmed before the other 150,000 unconfirmed transactions. Ummm, no.


Long version:
Your transaction: https://blockchain.info/tx/665648e7b6ba7dfcff1ba351bed89d9c4bcea82b885a18162f2b459c43fa84f5

is involved in a "double spend"... in fact, most of the inputs to this transaction have been TRIPLE spent... so ViaBTC won't work anyway... and neither will the BTC.com paid service...



Sure... call a free service, that does work, "bullshit" and "crap"... enjoy having your transaction stuck in limbo for another few days...   

You get what you pay for... you paid 118 sat/byte fee... you get the "wait for 7 days" service... current recommended fees for "fast" confirmation are much much higher... and have been for almost 2 weeks now:

if it is 51 chars and starts with a 5... you have an "uncompressed private key in WIF" format.

You can double check if you have written it down correctly by using bitaddress.org. DO NOT type your private key straight into the online version!! You need to download a copy of the bitaddress.org website (use the link at the bottom of the page for their Github or "zip"). Run it offline on your PC, then select "Wallet Details", and type your key into the box and click "view details".

You should see the matching "uncompressed public key". If you don't, then your private key is incorrect.

Also, to be honest, using blockchain.info wallet is a very bad idea. Their fee system is broken at the moment, and if you try to send your coins anywhere, chances are it will use a stupid low fee and your transaction will get stuck. I'd recommend getting Electrum and "sweeping" your key into a new "seeded" wallet.

Instead of doing the bitaddress thing, you can also try typing the key into Electrum "sweep" dialog, if the "Sweep" button stays greyed out, then the key is invalid and likely you have transcribed it incorrectly

Feel free to PM is you want more help.

I would caution against creating multiple accounts within Mycelium, as if you get coins sent to a different account, they cannot be combined with coins from other accounts in a transaction.

If you click receive in Mycelium, it will give you a new "unused" address from your address list and you can just use that. If you need to get two (or more) new addresses from Mycelium in advance... then download and run an offline copy of: iancoleman.github.io/bip39/

Put your Mnemonic (aka 12 word seed) in at top... Don't touch any other settings and all your derived addresses should be displayed at the bottom. Simply find the first one in the list that hasn't been used (you may need to click "show more addresses" if you have already used 20+) and go from there.

The only reason I could think of that an SPV wallet would struggle with this would probably be related to something described here: http://docs.electrum.org/en/latest/faq.html#electrum-freezes-when-i-try-to-send-bitcoins

And you would have to have literally hundreds of UTXOs for this to become problematic. It would be a case of your computer/device running out of memory if it was trying to collate them all. I've sent several transactions out of Electrum and other SPV wallets (eg. Mycelium on an Android device) that had 10+ inputs without issue.

How many inputs were you needing to use? 

I believe Electrum allow you to spend "unconfirmed change"... I don't think I've ever done it, so I am not 100% sure. I know that Bitcoin Core has an explicit setting for this:

You cannot "delete" transactions... once they are sent to the network, you have to wait until they are either confirmed or dropped by the network...

Your fee was way too low. The current recommended fees are much higher (and have been for a number of days now):


Goto this link: http://www.mocacinno.com/feecheck.php?dde0cd3667d0d8a045793b52636777edf3e0c551a5dd48260afdf2315527c430

It has a number of options available to you for getting your transaction confirmed (both free and paid options)

To get your transaction accepted by ViaBTC, you need to submit it in the first few minutes of a new hour... they only have 100 slots each hour, so it fills up fast!

You will not "lose" your bitcoins. If the transaction is dropped by the network... you will be able to resend them from your wallet. You haven't provided any transaction ID so we can't tell the reasons for why your transaction is unconfirmed. Most likely, it will be a low fee.


Not a scam... it is just the way the network works... different nodes will drop transactions at different times... If it is still showing on some explorers, it hasn't been totally discarded by the network as yet. It is still showing on the blockchain.info explorer (not surprising given you use the blockchain.info wallet) and it seems to have been rebroadcast again recently.

Your fee was way too low. To be expected with blockchain.info wallet. It is broken. Their so called 'dynamic fee' system is rubbish and they pretty much just send all transactions with a 120 sat/byte fee. You need to click the "Advanced Send" link on the "Send" dialog to set proper fees. The current recommended fees are much higher (and have been for a number of days now):


Goto this link: http://www.mocacinno.com/feecheck.php?txid=5fe12626402aa76d3941c8dec324569ed418d15b8403d14f029428bd8736b8b0

It has a number of options available to you for getting your transaction confirmed (both free and paid options)

Congratulations on waiting a whole 1hr and 14 minutes for a response... 

Which block explorers were you looking at to determine that the transaction had been dropped? Did you check blockchain.info, blockr.io, live.blockcypher.com, blocktrail.com, btc.com, blockexplorer.com etc etc?

Just because it has been dropped by one explorer (which effectively represents one node)... does not mean that it has been dropped by all nodes.

It might be that the nodes that MB Classic is scanning from still contain that transaction in their mempool or some other weirdness...

Do you mean the 12 word seed? or the actual private keys?

Not sure how you'd be able to handle the 100+Gigs of diskspace currently required for the blockchain... I suppose you could hook up an external HDD...

As previously mentioned, the 1Gig of RAM might also be problematic... but probably not a showstopper.

This is technically "impossible". In that scenario, AddressB2 has no knowledge or ownership of the coins sent to AddressB1.

However, this is the sort of strategy that Bitcoin mixers attempt to use to hide the connections between bitcoin addresses. For instance, they receive "coinsA" to addressA... and then forward on the same amount (minus a fee) of different "coinsB" from addressB to attempt to break the chain of transactions that would link the addresses.

For normal people, you would have to do this:
And then you end up with the links in the blockchain A->B1->B2->C... which isn't any different to A->B->C. It just costs extra time/money for the extra transaction

It all depends on your personal level of paranoia required security...

If you're booting a Live CD/USB image... that disables all network access, then I would say that one computer should work. Having a 2nd physical machine that has and will never be connected to the internet is just another layer of security... at the added cost of convenience and extra $.

MacOS vs Ubuntu is a bit like arguing which hand gun is safer, a Glock 9mm or a USP 45?... If used and handled properly, both are perfectly safe. If used carelessly, both are dangerous.

I'd probably suggest using the one you are most comfortable and familiar with. It should be (theoretically) easier for you to spot things that "Just Don't Look Right" on a system you know as opposed to something you have less experience with.

I see the lads in that other thread have sorted out your verification query... so I hope that goes well. From personal experience, using Electrum in an offline + online system works pretty well and isn't too difficult or cumbersome once you get a work flow sorted.

So are the never ending stream of people posting transactions that are stuck that use fees that are way too low to get a quick confirmation... 


Your fee was way too low. The current recommended fees are much higher (and have been for a number of days now):


Goto this link: http://www.mocacinno.com/feecheck.php?txid=ac5ef5e668a2e3cccbea12fcf42430b1b642b5a59179f17beecb729fce4ca4b4

It has a number of options available to you for getting your transaction confirmed (both free and paid options)

the ViaBTC Accelerator is not a magic tool that insta-confirms your transactions. It is just a way of prioritising your transaction into a block... that is mined by ViaBTC

So, until ViaBTC actually mine a block, your transactions probably won't confirm.