Lost private key years ago... | Bitcointalksearch.org

whanau

member

Activity: 124

Merit: 37

Quote from: lozzauk on August 14, 2017, 08:11:26 AM

The public key it gave me was 34 characters? This matches the length of mine.
The private key it gave seems to be 'WIF compressed'

Don't reveal the WIF key to anyone.
Download Electrum from the OFFICIAL source.
Sweep that key into Electrum and see what happens.
There are lots of posts on how to sweep keys.

Again don't reveal the WIF key to anyone.

So you can check, the public key to that address.. (Don't worry it's Public!)
04C723D537CDB27800C019F0C310FB486BE34E80D1B2358C1B470C28A9FAFDC6CBA2FAFF15067CE CF64446EEA798DFB460F68C125AB4F5A55042BD65F4B6E27B41

lostbitcoin

brand new

Activity: 0

Merit: 2

Quote from: lozzauk on August 14, 2017, 07:39:36 AM

Hi bitcointalk

Well, this has been quite a rough ride for me lately. I had some bitcoin back in April 2010 (when it was $0.003!) mined a block, got sent a few from a friend when we were speculating that this 'might catch on'

Well little did I know how much he was right.
This leads me to a slight problem.

7 years have past in which I have forgotten all about the bitcoins and then I hear the news about the fork. Do buy back in at the low and still hold them now but this is a tiny fraction of what I did have.

Enter frantic HEX dumps of all the flashdisks and hard drives that I have that may have sometime contained the file. Seems I do not have it, but did seem to find the following, but the data is very fragmented.

Wallet address which I checked on the block explorer and it matches my recollection of the payment value.
A set of very fragmented transaction ID's that match those on block explorer.

And a possible private key.
The private key I have extracted as HEX and now have it as ASCII. How many characters should it be?
I have 39 bytes of ASCII which seems a bit too long as that's 312 bits.

Is there a way I can rolling window these keys and see if any of them are correct?

Thanks!!

First, are you the owner of this address?
https://blockchain.info/address/1FXavuV1rjJicYau2md7pa22Q3P4HEcMLN
I don't need any data you have (hard disk, password hint)

I would like to know how much I can pay for this bitcoin transfer
Please tell me your new address.

We launched a service that finds lost bitcoins in a new way.

https://ibb.co/yWd5j22
https://ibb.co/G0zdCNc

I created an application that can calculate the public key +-* /.

linenoise

sr. member

Activity: 309

Merit: 290

Quote from: lozzauk on August 14, 2017, 04:53:22 PM

One of my collegues had the thought that as I said it was on my dropbox at one stage that was sync'd to my old laptop (which is hopefully still in work storage!) we can look on there.

My dropbox account isn't live anymore Sad

And yes, I'm pretty mortified as this the one
https://blockchain.info/address/1FXavuV1rjJicYau2md7pa22Q3P4HEcMLN

Around $2 worth in 2010.

Have you talked to dropbox to see if they happen to archive closed accounts? I'd talk to the data recovery experts. Some firms managed to pull data from drives from the twin towers after they fell. If they can handle that sort of damage an overwritten file may be easy for them to get back.

Mike Mayor

hero member

Activity: 966

Merit: 535

Eh dude.... That really sucks. This is why backup everything. I know you never knew though and many people say to backup nit they themselves negate it. Very easy mistake to make and very costly. If you had mined a block you will have at least 50ntc plus the ones you were given. That's over $220k . Not an amount you want to lose. I wish you good luck and I really hope you come right and get your Bitcoin back.

Donate_Me

newbie

Activity: 11

Merit: 0

I send this user alot of info but no answer ... so maybe there is nothing and just want to show btcforum and his family or freinds a drama story.
but for other peoples who have this problem ... some useful info :

After you check for a wallet.dat and compare it with other wallet
for example Wallet 2010 and Wallet 2016
there is some strings in both of them.
Recovery softwares dont have a "Wallet.dat Extention" so you must dump the file from Hard Disk.

Wallet 2010 :
http://s9.picofile.com/file/8304664892/wallet_2010.png

Wallet 2016 :
http://s9.picofile.com/file/8304664926/wallet_2016.png

b1 string and many more can help you to find START + END of wallet... you can find this in your hard disk dump (HEX MODE)
so its better you done from END to Start.
strings like :
b1 (start )
fromaccount ( middle )
keymeta (end )

http://s8.picofile.com/file/8304678168/Hex_Strings.png

with this Analyse you can search and find the section of wallet.dat file.
and if you dump that section and save to "wallet.dat" you will have a copy of your wallet file.
its not a very hard job but its need alot of attention ... 1byte make your file corrupted.
so you need test alot ( trial and error the saved file for a GOOD copy )

my freind start coding something like it to search in a IMAGE of Hard Disk.i dont know when it finish.

Good Luck.

BitPACK

full member

Activity: 246

Merit: 100

i hope you can recovery back. please write your result here. we are waiting your result.

Donate_Me

newbie

Activity: 11

Merit: 0

you can easy recover them.

try to answer this questions :

1-You have any old email address or account with uploaded those files ?
2-is there the Hard disk still alive ? i mean from that time the hard disk is work ? 2010 till 2014 ? 2015 ? or now ?
3-there is some method for back files from that day you attach the hard disk till the time the hard disk is work.

P.S : i can help you about this problem,i can share information and you Must do it yorself to recover it.
i help someone with this problem in year 2016 about 151 BTC.
after recovery done and he find the info and import in wallet we found a backup in old email address.
so its why i asking you the FIRST Question.

I Hope you can back it.
its 600 , there is wallet with 25.000 BTC lost in this forum ...

kiddikoddi

member

Activity: 84

Merit: 10

Bounty Manager At your Service Please Pm me

Hey paragon is pretty solid recovery software, but if you have overwritten it many times then chances decrease, these pro recovery companies dont do anything more than a software can do also i would never trust them to recover a 600btc wallet lol
But i am a tech savy and if u need any help just lmk
I am good with encryption and data recovery but kinda busy at the moment but i can help you when im done

pooya87

legendary

Activity: 3472

Merit: 10611

Quote from: lozzauk on August 15, 2017, 05:38:30 AM

Do we know what the main bitcoin client of early 2010 file stucture and private key delimiters as he will need them.

https://bitcoin.org/en/version-history it was something before 0.3 and since the compressed keys were introduced in 0.6 IIRC, your keys must be uncompressed. meaning in WIF (Wallet Import Format) they should start with 5 (5H, 5J, 5K). this is Base58 which are alphanumeric characters excluding 0OIl [1]

if it contains +, =, / then it is base64 [2]

if it contains numbers from 0 to 9 and letters from A to F then it is base 16 or hexadecimal [3]

you can use each of these above 3 in https://www.bitaddress.org last tab called "Wallet Details" to get your private key, pubkey and address.
if it is not one of these (unless i forgot something) it probably is either not a private key or it is encrypted and you need a password.

[1] https://en.bitcoin.it/wiki/Base58Check_encoding
[2] https://en.wikipedia.org/wiki/Base64
[3] https://en.wikipedia.org/wiki/Hexadecimal

ChickenBacon

member

Activity: 118

Merit: 100

Research is key

Hope you get it back one day!

coinzoid

sr. member

Activity: 476

Merit: 250

Quote from: lozzauk on August 15, 2017, 05:38:30 AM

Hi All

Thanks. I suspect if I had have kept this more in my mind and therefore the key safer I would have cashed out much sooner.

I'm turning all my drives over to a friend I haven't seen in about ten years. He runs a PC forensics business and has done successfully for a number of years and became aware of my plight. Said he wants an interesting project if he can help. As it was on magnetic storage at one stage we may have some luck but I still doubt it. So I will not be using them again to minimise any further possible loss or corruption.

It's still going to take a miracle.

Do we know what the main bitcoin client of early 2010 file stucture and private key delimiters as he will need them.

Have a look at following wiki. Maybe it helps.
https://en.bitcoin.it/wiki/Private_key

You have some chances if data is not overridden by new data. Some recovery tools produce good results but data must be unchanged. Maybe instead of hiring experts, you may want to buy full versions of trusted recovery programs and use them on your own. If you tell anyone that you had 600 btc on a disk and ask them to recover, then chances are high that they will say we couldn't find anything but they can run away with your funds if they can succesfully recover your private key.

lozzauk

newbie

Activity: 26

Merit: 0

Hi All

Thanks. I suspect if I had have kept this more in my mind and therefore the key safer I would have cashed out much sooner.

I'm turning all my drives over to a friend I haven't seen in about ten years. He runs a PC forensics business and has done successfully for a number of years and became aware of my plight. Said he wants an interesting project if he can help. As it was on magnetic storage at one stage we may have some luck but I still doubt it. So I will not be using them again to minimise any further possible loss or corruption.

It's still going to take a miracle.

Do we know what the main bitcoin client of early 2010 file stucture and private key delimiters as he will need them.

BitcoinBarrel

legendary

Activity: 2062

Merit: 1035

Fill Your Barrel with Bitcoins!

I really hope you get your BTCs back, it will be a miracle. But think of it like this... if you had your 600 BTC this whole time you probably would have sold it at $10 or even $100/BTC. It would have been very tough to keep these coins through all the years. So if you do recover them, it will be some good fortune. I definitely agree with hiring some experts, but be careful what you tell them because they may try to scam you for the BTC.

PromethiumX

newbie

Activity: 59

Merit: 0

Take a look at GetDataBack, https://www.runtime.org/ I've used it with great success many times.
THis will do a non destructive search of your drive and enable the use of earlier file allocation tables.
Ensure any restoration is sent to a secondary device.

lozzauk

newbie

Activity: 26

Merit: 0

I'm in the UK, same place as someone through 7,500BTC out with the garbage a few years back.
I also have a memory stick it was definitely on but there's not a single HEX block on there, so chances of data recovery on that is slim.

On a magnetic disk is there any chance of recovery after an overwrite? I had a look and most of the "recovery experts" seem to be just using recovery software. I'm at least going down into the individual sectors, but it's only what the OS can read obviously....

Coin-Keeper

hero member

Activity: 761

Merit: 606

Quote from: RVRovin on August 14, 2017, 11:26:04 AM

Worth paying the money to have the experts work on this, if you figure this out you may have enough to retire!

You think? Thats over 2 million at 3500/ coin.

lozzauk

newbie

Activity: 26

Merit: 0

One of my collegues had the thought that as I said it was on my dropbox at one stage that was sync'd to my old laptop (which is hopefully still in work storage!) we can look on there.

My dropbox account isn't live anymore Sad

And yes, I'm pretty mortified as this the one
https://blockchain.info/address/1FXavuV1rjJicYau2md7pa22Q3P4HEcMLN

Around $2 worth in 2010.

RVRovin

newbie

Activity: 25

Merit: 0

Worth paying the money to have the experts work on this, if you figure this out you may have enough to retire!

AmDD

legendary

Activity: 1027

Merit: 1005

Quote from: lozzauk on August 14, 2017, 09:28:27 AM

That's the problem. I don't have the file, just recovered bits that seem to have been overwritten.
I've pretty much written it off - but it's 600BTC so not easy to do!

You may have better luck with a data recovery company. Its not cheap but it could be very worth it if they can recover your wallet.dat file.

lozzauk

newbie

Activity: 26

Merit: 0

That's the problem. I don't have the file, just recovered bits that seem to have been overwritten.
I've pretty much written it off - but it's 600BTC so not easy to do!

Topic: Lost private key years ago... (Read 1509 times)