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3161  Bitcoin / Electrum / Re: Server exception in console on: January 21, 2020, 09:07:26 PM
Let me guess... someone told you to "run this command on the console"?

Bitcoinmixer.eu is a SCAM! https://bitcointalk.org/index.php?topic=5195145.0

They're basically trying to steal your money. Thankfully, it looks like they're stupid and gave you an incorrect formatted command and it failed to run. The command they've given you is attempting to download a script from their server that is designed to compromise your wallet/seed/private keys etc.

To be safe, you should do as akhjob has suggested, create a new wallet and more your funds immediately.
3162  Bitcoin / Wallet software / Re: Safest Wallet for BTC without Fee on: January 21, 2020, 09:00:05 PM
Personally, I think that $50 really isn't much in the grand scheme of things... I find it odd that people will nickle and dime on this stuff when they have potentially thousands of dollars worth of cryptocurrency that they need to protect.

It was just like when I started in aviation... looking at headsets... people will hunt for a deal and opt for a budget headset for $100 that has terrible quality, is uncomfortable, doesn't have active noise cancelling and will likely be ruined after a year or 2... completely forgetting that they're about to spend a minimum of $10k-$15K getting a licence (vast amounts more if they're going commercial). I spent ~US$600 on a top of the line noise cancelling headset about 10 years ago... I have since put about 1500 hrs on it, including 1000 hrs flying in the tropics... still in good shape and working perfectly. I replaced the ear seals twice and only had the cable changed because I accidentally damaged it when closing a door. The old budget one fell to pieces while I wasn't even using it. It was packed in a protective bad in storage and the cable and ear pads basically just disintegrated.

Given I've easily spent US$50,000 on my flight training/medicals/exams/renewals etc flying aircraft that at times cost $300/hr to fly... that US$600 was but a drop in the ocean. Same with hardware wallets... you want an easy, reliable way to securely store a "decent amount" of crypto? Hardware wallet for ~$50.

I was the same as most when I started out, I looked at these $100+ units and was like "NOPE!"... when I had like $200 worth of crypto... once my holdings increased to a point where losing it would equate to significant financial loss, I ordered a Nano S... AND a Trezor. I don't regret either purchase.
3163  Bitcoin / Electrum / Re: Lost my money through electrum withdraw on: January 21, 2020, 08:19:21 PM
But in the recipient account there is still no money. I think they are lost. What happened and what can i do to get my money back?
To know what happened, we would need more information like a transaction ID, but It's up to you if you want to provide it. It won't harm your security, just your privacy.

Otherwise, do as AdolfinWolf suggested, check your transaction ID from Electrum (and/or the address you sent to) on a blockexplorer:

https://live.blockcypher.com/
https://blockchair.com/
https://blockstream.info/

See if the transaction is "known" by the network.
3164  Bitcoin / Bitcoin Technical Support / Re: Fatal error on: January 21, 2020, 08:13:27 PM
As far as I know it stores nothing in the registry.
It does...

Go checkout: HKEY_CURRENT_USER\Software\Bitcoin\Bitcoin-Qt

There are a couple of "proxy" and "tor" related settings there... although I believe they should be reflected in the "Settings -> Options -> Network" tab within the GUI.

3165  Bitcoin / Wallet software / Re: Safest Wallet for BTC without Fee on: January 21, 2020, 07:43:01 PM
You can try something like the Satochip... I've been playing with one and it's not too bad. Granted if requires a USB smartcard reader... but the whole setup, card+reader+postage cost me like €40 as a special deal. Currently a card is €25 (reader is €15), so if you already have a smartcard reader it is a fairly good budget option. I queried them a while back on how common smartcard readers are and it turns out that in Belgium (where I believe the Satochip devs are based) they're very common because of the country's national "eID" system.

At the end of the day... how much did you spend on your phone? on your PC? Even if you only have 0.1 BTC to store, then $50 is less than 10% of your total holdings.


They have a thread here: https://bitcointalk.org/index.php?topic=5181719.0
Website with online store here: https://satochip.io/
3166  Bitcoin / Wallet software / Re: Safest Wallet for BTC without Fee on: January 21, 2020, 09:58:15 AM
The only places that charge additional fees are Exchanges, Gambling Sites and other web-based service providers... who are obviously centralised and use "custodial" wallets.

Get yourself a copy of Electrum here: https://electrum.org/#download

It has a lot of features that allow full control of everything... it's lightweight and relatively user friendly and there is a fairly active community here that will answer any questions you may have: https://bitcointalk.org/index.php?board=98.0

It's also in active development: https://github.com/spesmilo/electrum

So any issues identified with it get fixed promptly.
3167  Bitcoin / Electrum / Re: Update check failed? on: January 21, 2020, 09:52:01 AM
I've tried the manual update (help->Check for updates) and mine also failed to connect to the update server.

Hopefully, they'll fix it up asap.
Weird... it's working perfectly here:



Anyone else having issues? Huh

3168  Bitcoin / Electrum / Re: Can't start a wallet! on: January 21, 2020, 09:47:15 AM
Hello! I download the software today - but when I try to open the wallet it comes
wallet:  default_wallet    ( no changes possible)
and Password - but I have never used before Electrum!
So you are you seeing a screen like this?



Are you not able to click the "Choose..." button and/or edit the "default_wallet" text? Huh If you can't, it sounds like a fake wallet. Do as the others suggested and check where you downloaded from.

If you can click "Choose..." and/or edit the "default_wallet" text, then you HAVE used Electrum before, and the application is simply attempting to open the old wallet (wallet files are not deleted if you delete/uninstall Electrum as it stores wallet files in your "user data" folder, not in the program directory.


3169  Bitcoin / Wallet software / Re: Safest Wallet for BTC without Fee on: January 21, 2020, 09:31:32 AM
No. All transactions will require a fee to be able to propagate across the network as most nodes will reject 0 fee transactions. Unless you know a miner/mining pool willing to include transactions on your behalf, 0 fee transactions are a thing of the past.

What you want is a wallet that allows completely customisable fees... that way you can set whatever you want (greater than 0 obviously!), like 1 sat/byte. Plenty of good wallets allow this. Are you wanting desktop or mobile or hardware? Full Node or SPV? Huh
3170  Economy / Gambling discussion / Re: Premier League Prediction Thread (EPL) on: January 21, 2020, 08:54:12 AM
Liverpool now 16 points clear with a game in hand. This is the most dominant I’ve ever seem a team in the PL. Jurgen has built a winning machine, I’ve waited my whole life for this Smiley
And I've been waiting 2/3's of mine! Tongue

Liverpool are just playing the beautiful game well, beautifully! Even with the "ugly" games, the cramped schedule and the loss of a number of players to injury (Matip, Fabinho, Lovren, Keita, Milner etc) they have managed to grind out wins... Unlike previous seasons, they have not slipped up and dropped points against the middle and lower order teams... something that Citeh and Leicester have done and the current table reflects that.

Going to be a tough match against Wolves... N.E.S. has his players believing in themselves... Jimenez is on a hot streak at the moment, so I think our run of clean sheets will be broken. Still, I'll back the redmen to take a 2-1 victory.

Chelsea v Arsenal will likely be a pretty dour affair... neither Lampard nor Arteta can afford a loss, so I expect the game to be pretty defensive... Low scoring... either 0-0 or 1-0 to Chelsea on this one.
3171  Bitcoin / Development & Technical Discussion / Re: how to read blockexplorer on: January 21, 2020, 08:02:29 AM
Depending on what you require in terms of requests/sec... I have always had fairly reliable service from Blockcypher: https://www.blockcypher.com/dev/

The free tier is 3 requests/sec and up to 200 requests/hr... Limits reset on the hour. You can read more here: https://www.blockcypher.com/dev/bitcoin/#rate-limits-and-tokens

Haven't used it for a while tho, as I have my own full node and just use bitcoin-cli for what I need/want.
3172  Bitcoin / Electrum / Re: BCH TO BSV on: January 20, 2020, 08:11:44 PM
Can you please let me know if there is a way to get the BCH back if I transfer BSV back to electrumSV wallet?
The problem is that while, theoretically, any BSV you transfer could be "replayed" on the BCH chain (there was no replay protection implemented if I understand correctly)... the BSV that you send back from the exchange is most likely not going to be from the same address as the one you accidentally sent the BCH to, as exchanges tend to use "pool" addresses. In other words, coins you withdraw do not come from your own deposit address.

Because of this, the address that the BSV will be sent from, most likely won't have any BCH associated with it... so replaying the transaction won't return coins on the BCH network.

Additionally, it seems that exchanges and some wallets actually implemented their own "in house" replay protection (I would guess by using UTXOs unique to BSV and/or BCH network in transactions) to prevent people getting "extra" coins by withdrawing BSV and getting bonus BCH (and vice versa) Tongue
3173  Bitcoin / Development & Technical Discussion / Re: how to read blockexplorer on: January 20, 2020, 07:56:00 PM
If the fee is not explicitly stated by the API, you can calculate it yourself very easily as it is simply the difference between the total of vIn amouts and vOut amounts for a transaction.

In the example above:

vIn = 0.03602039
VOut = 0.01 + 0.02601813 = 0.03601813

Fee = vIn - vOut = 0.03602039 - 0.03601813 = 0.00000226
3174  Bitcoin / Bitcoin Technical Support / Re: Trying to recover old wallet on: January 20, 2020, 07:36:26 PM
It seems I've run into a plethora of misinformation out there. Okay so here is the a link to the post that inferred the idea that I could get a copy of my wallet.dat file from the bitcoin blockchain itself.  Scroll all the way down, it's posted by HCP.  Post is June 24th 2017 https://bitcointalk.org/index.php?topic=1976001.0 Wallet ID is mentioned, however there is nothing stating that it's a commercial website not affiliated with bitcoin itself.  Again I had literally assumed that it was and that the wallet ID mechanism is thusly part of the bitcoin blockchain.  I saw there are timestamps on there.  I know when I mined it and how many transactions were going in and out of the wallet, so I had assumed I could narrow down what wallet was mine, along with the IP address assigned by the ISP and thus a rough geographical location.  So in a sense, using metadata about the wallet.  Look for a wallet matching those metadata criteria, download it, try recovering it.
Ahhhh I see where your confusion has come from... one of my posts to another user regarding attempting a password recovery on a blockchain.info web wallet. Smiley

That's not misinformation, it is just you're reading solutions to different problems/issues and thinking that they apply to you.

And yes, it can be confusing for newbies seeing "blockchain.info/.com" and thinking that it IS the blockchain, as opposed to a commercial company trying to look more important than they are... It is not an accident that this company deliberately chose this domain name.  Angry Undecided Roll Eyes


This page at https://github.com/bitcoin/bips/commit/ce1862ac6bcffa1dd20aad858380e51e66e949ea#diff-f01f2760502eccb8cb2ede8981e31b82 gave me the idea that if I could remember enough of the passphrase/list of words that I could quasi bruteforce guessing what it is, as long as some of it is already known.  It would be known as a salted word list lookup at that point, also a non bruteforce password attack.  At this point I had assumed the list of characters that I know I saw but can't remember what they were, was the 12 word, fixed word private key or seed.  Unbeknownst to me that it's not possible because the wallet version was too early.  So then I wondered that it was a wallet ID.
I'm not sure where you got the idea that ALL wallets use wordlists? Some do (Electrum and Mycelium for instance) and some don't (Bitcoin Core). Given you believe that you were using Bitcoin-Qt/Bitcoin Core, then this method does not apply to your situation.

Also, given that the wordlist generates an effective "alphabet" of 2048 "characters" as there are 2048 words in the BIP39 wordlist... your odds of "quasi bruteforce guessing" it are orders of magnitude worse than attempting to bruteforce a "simple" 12 character password using uppercase/lowercase/numbers which is a 62 character "alphabet".


The UUID was in the directions to something but I'm not sure what, I suspect the directions to using btcrecovery.py.  That, a wallet transaction number and some other things were required criteria to find and download the wallet.dat file, probably from blockchain.info.  Again this one I don't have eividence of the misinformation.
No, the only thing needed to download a blockchain.info (now known as blockchain.com) wallet file (note: it is NOT actually a wallet.dat file, it's a text file in JSON format usually called "wallet.aes.json") is the wallet ID (and your "2FA" code if you had it enabled), as per the btcrecover docs:
Blockchain.info - it's usually named wallet.aes.json; if you don't have a backup of your wallet file, you can download one by running the download-blockchain-wallet.py tool in the extract-scripts directory if you know your wallet ID (and 2FA if enabled)

Again, given that you're adamant that you were using Bitcoin Core, this solution does not apply to your case.


This thread has no information at all on what versions of the wallet it applies to, so I thought and assumed it meant all of them.  There is no indication otherwise https://bitcointalk.org/index.php?topic=4959742.0  BIP39 I had no idea what version of the wallet it applied to.
That is a generalised recover guide that applies to a lot of different wallet software/applications. It is NOT specific to Bitcoin-Qt/Bitcoin Core. It even suggest that here:
...
Determine wallets based on filenames (note: these are the default filenames, you could have renamed yours)
  • wallet.dat
    Use Bitcoin Core
    Note: many altcoins use(d) the same filename, in that case you won't find any Bitcoins in your wallet.
  • default_wallet
    Use Electrum.
  • bitcoin-wallet-backup-YYYY-MM-DD. Example: bitcoin-wallet-backup-2015-12-31
    Use Bitcoin Wallet on Android.
...

So, that thread is more aimed at someone who has access to a wallet or private keys or some other form of "backup" (like a seed mnemonic)... and aren't quite sure exactly what "format" that backup is in and/or what wallet software/application they may need to use their backup with. Your situation is completely different, as you have nothing except possibly a broken hard drive. Undecided


Anyone have ideas how else i could retrieve the wallet?  I know less about it than probably everyone on here.
The short answer is that if you don't have any backups of your original wallet.dat, or any way to recover the wallet.dat from your old drive, then your wallet is lost forever. There is no way to reconstruct it from any other information.


Wish I knew how to do quoting on here.  
You click the "quote" button on the post you are trying to quote. Wink
3175  Economy / Games and rounds / Re: 🀄️ Puzzles, games and giveaways 💰 Restart 🏆 on: January 20, 2020, 06:36:21 PM
Rats... Was just a fraction too slow... I knew the answer straight away, but trying to login on my phone with all the 2FA login crap slowed me down Undecided

3176  Economy / Reputation / Re: Selling reviews for money. on: January 20, 2020, 09:49:57 AM
Without selling any fake review you guys give me a red tag one after another and that hurts me a lot. I ask a question for all senior members. Am I really deserve it after I admitted all things immediately?
Intent counts for a lot... So, while you may not have actually managed to make any money selling fake reviews and you admit that what you did was wrong, that doesn't change the fact that you attempted to sell fake reviews.

This makes you untrustworthy in the eyes of the people who have left you negative trust ratings.
3177  Economy / Lending / Re: Short .00035 BTC can anyone help me for time being? on: January 20, 2020, 09:08:15 AM
You already attempted this back in 2017 (not 2016)... https://bitcointalk.org/index.php?topic=1808435.0

And you already got a red tag from Vod for asking for a non-collateral loan. You then pop up after not having posted in ~3 years since your failed loan and then try to get another loan. I'm not sure why you expected that this time would yield different results? Huh


I have gotten a loan here before in literally 2016 when I first made this account and paid it back and it was for 100$ not $3.50 that i am short on. Thanks for commenting thought buddy. Also posting 1000 times in a BTC forum doesnt give you any incentive to pay someone back either so why arent you saying that to everyone else asking here? Go post somewhere else rather than bash my thread trying to get 3$...
There is no proof that the original loan request was ever filled... or repaid. The address you posted never received any payments for the 0.00578 BTC you were asking for (~$50 worth at the time) around the date of that thread being posted.

Best of luck getting your loan filled. Roll Eyes
3178  Bitcoin / Armory / Re: Generate armory wallet addresses with Bit-Wasp / bitcoin-php on: January 20, 2020, 08:03:24 AM
AFAIK, Armory doesn't generate private keys in the same way as BIP32 type wallets etc... It is using a proprietary system. So, I don't think you'll be able to export a "Master Public Key" from Armory, and have other wallet apps/libraries reproduce the same keys/addresses as your Armory wallet.

You options would then be to generate keys/addresses externally to Armory, and then import them to Armory... or you would need to use a different wallet that supported the BIP32 standard that I believe bitwasp is using.... that way, you would be able to export a "Master Public Key" from your wallet... and Bitwasp should be able to derive the same public keys/addresses without needing to expose the underlying seed/private keys.
3179  Bitcoin / Bitcoin Technical Support / Re: Trying to recover old wallet on: January 20, 2020, 03:42:12 AM
Went and did research and educated myself from some of the replies.  The actual HD it was on I think crashed.  It was a PATA drive 200 GB. Mechanical failure roughly, the voice coil went bad and the spindle motor couldn't sync anymore and get the platters to speed.  I 'might' still have the drive but I'm not sure.  So the idea of retrieving the wallet.dat file is most likely impossible going that route and method.  I had deleted it too but I know if a file is not overwritten it can be recovered.  But hence the issue with the spindle motor.
Unless you want to try sending it to some sort of data forensics lab, then basically your quest is over.


Quote
So I kept reading and researching.  From what I read, I need the UUID/wallet ID number, from that I can retrieve a copy of the wallet.dat file from the blockchain itself.  
As far as Bitcoin-qt/Bitcoin Core is concerned, there is no such thing as a UUID/wallet ID number... and you certainly can not retrieve a copy of the wallet.dat from the blockchain itself. I'm not sure what you have been reading, but this information is incorrect.

A "wallet.dat" is simply a Berkeley Database data file... it (normally) contains a number of private keys (and in more recent "HD" wallets, it will contain a "seed") and information relating to those private keys (that is to say the matching public keys and derived addresses and transaction history relating to these.

The private keys are NOT stored in the blockchain in any shape or form. You absolutely can NOT recover these if your copy of the wallet.dat is gone.


Quote
From there I need at least some of the 12 or 24 word passphrase(?).  I found out about  btcrecovery.py,may work if I can get enough of the word passphrase.
Again, this is incorrect. 12 or 24 word recovery phrases (aka "seed mnemonics") were generally introduced to wallets following the BIP39 standard. BIP39 was first proposed: 2013-09-10. It certainly wasn't around int he first year of Bitcoin as you believe you were operating.

In any case, even today, Bitcoin Core does NOT adhere to this standard, so there is NO 12/24 word recovery phrase that you can use to recover your wallet.dat. If you have/had a 12/24 word recovery phrase, then it is for a completely different wallet.

The python-based "btcrecover" can be used (amongst other things) to try and brute force a forgotten password from a wallet.dat that had a password set... it can also be used to discover a missing word or two of a 12/24 word recovery phrase (assuming you have other information like an address that was generated from the seed derived from the 12/24 word phrase). It will NOT be useful to recover a wallet.dat.


Quote
I've discovered the blockchain explorer at blockchain.info which is now apparently blockchain.com.  Is there a way I can identify a wallet by when it was mined to and or where it was mined at by IP address?  I do know who my ISP was back then, where I was, how long I mined and when and so on.  I could narrow down the wallet from the blockchain that way.  Metadata from the transactions.  
None of that info will be useful to you. Your wallet is NOT stored on the blockchain... there is nothing to narrow down. Transactions contain very little metadata, and certainly nothing that identifies what wallet it came from.


Quote
I'm realizing that without the wallet.dat file I'm dead in the water.
Correct. Undecided


Quote
I do remember there was a long string of words that to me seemed random, I was puzzled how it was a password or passphrase.  I do remember setting up a password for an account though, and I remember what that one is.  THere was a bunch of things I didn't understand, what a UUID or wallet ID was one of them.
Again, you're talking about UUID and/or Wallet IDs and/or "accounts"... these are NOT concepts that relate to Bitcoin-qt/Bitcoin Core.

You're either referencing wallet IDs from blockchain.info (now blockchain.com) or some other web-based wallet... impossible to know which without having the actual ID... If you had an account or id or something, then I am fairly certain that you were NOT using Bitcoin-qt/Bitcoin Core.

Have you looked through old emails to see if you have anything from Blockchain.info? One of those might contain a wallet id number. Or you can try options here: https://login.blockchain.com/#/help (if you have access to old email accounts originally used with blockchain.info)
3180  Economy / Games and rounds / Re: [DAILY FREE RAFFLE]446th ฿ECAUSE I AM STILL IN A GOOD MOOD FREE PHYSICAL ฿ITCOIN on: January 18, 2020, 06:46:54 PM
9 - HCP
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