Author

Topic: BTC address missing characters (Read 284 times)

newbie
Activity: 49
Merit: 0
April 22, 2023, 04:22:51 PM
#11
@JBRai
wif missing is less then 6 at any place that can be recovered in 60min more or less. but if you missing checksum in wif it may take while but still possible.
i have made tool for cuda to practically test all possible pair with there checksum. but there are many false positive too.
my tool approach is different what PawGo coded. i use base58 decode and checksum match effort to validate it.
Do you have gpu ? i can send you app for testing.

Hello.
Can you please send me your program for testing on the GPU.
I sent you a telegram.
member
Activity: 69
Merit: 53
February 21, 2022, 05:40:03 AM
#10
@JBRai
wif missing is less then 6 at any place that can be recovered in 60min more or less. but if you missing checksum in wif it may take while but still possible.
i have made tool for cuda to practically test all possible pair with there checksum. but there are many false positive too.
my tool approach is different what PawGo coded. i use base58 decode and checksum match effort to validate it.
Do you have gpu ? i can send you app for testing.
legendary
Activity: 3290
Merit: 16489
Thick-Skinned Gang Leader and Golden Feather 2021
February 21, 2022, 03:47:15 AM
#9
There is this thing in WIFs called "checksum" that you could have used to reduce this ridiculously big number to only one or two possible keys for 3 missing characters. Then importing them into a wallet to check becomes much easier.
Even if it's a much longer list of private keys, you can use something like bitcoin-tool to convert them into addresses and comm to check which ones have a balance. This way you can check millions of addresses in seconds.

Is it still the same case you posted months ago?
https://bitcointalksearch.org/topic/m.53950859
That's 2 years ago Shocked OP seems to have abandoned this topic too.
legendary
Activity: 3472
Merit: 10611
February 21, 2022, 02:08:41 AM
#8
Code:
Crunch will now generate the following number of lines: 238328 
Then you can import all the private keys to a bitcoin core,
That could take until the end of time, specially since core needs to rescan Smiley
There is this thing in WIFs called "checksum" that you could have used to reduce this ridiculously big number to only one or two possible keys for 3 missing characters. Then importing them into a wallet to check becomes much easier.
legendary
Activity: 3346
Merit: 3125
February 20, 2022, 02:01:57 PM
#7
Hi Guys i have 2 addresses not sure what the balance is, but i have the private key which begins with Letter K one has 49 characters and the other has 54 can anyone help?

For the 49 chars private key you need to know the position of the missing chars, if they are the last 3 ones then you can use a command like this:

Code:
bitcoin@host:~$ crunch 52 52 ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnopqrstuvwxyz -t 5KMWmYkn5YWkJnUDG4utD9L1HXQv3DBseqqCGsQXmthcEerbA@@@ -o pks.txt
Crunch will now generate the following amount of data: 12631384 bytes
12 MB
0 GB
0 TB
0 PB
Crunch will now generate the following number of lines: 238328

Then you can import all the private keys to a bitcoin core, that's how I would recover the coins, and if you don't know the position in the missing chars then you can forget about those coins, the number of combinations is really big in that scenario.
legendary
Activity: 2534
Merit: 6080
Self-proclaimed Genius
February 14, 2022, 10:46:25 PM
#6
Based on the OP, it looks like it's your Private keys that are missing some characters.

Anyways, for the address, try using www.walletexplorer.com.
It has an auto-complete feature for the partial address that you will paste on their search box,
the catch is: the address should at least been used once (and not recent) for it to be registered to their database.

Example: if you search for "1BitcoinEaterAddre", it will automatically redirect you to "1BitcoinEaterAddressDontSendf59kuE".
More characters means more accurate search.
legendary
Activity: 952
Merit: 1385
February 14, 2022, 03:20:49 PM
#5
Is it still the same case you posted months ago?
https://bitcointalksearch.org/topic/m.53950859
legendary
Activity: 2268
Merit: 18711
February 14, 2022, 10:48:05 AM
#4
As Loyce says, a private key beginning with K is a compressed WIF and should have 52 characters. Is it possible you have taken a couple of characters from one key and added them to the other? Have you tried importing the first 52 characters of the key which has 54 characters?

You could try using a tool such as The FinderOuter by Coding Enthusiast to attempt to brute force the correct private keys.
legendary
Activity: 3290
Merit: 16489
Thick-Skinned Gang Leader and Golden Feather 2021
February 14, 2022, 10:23:29 AM
#3
Hi Guys i have 2 addresses not sure what the balance is, but i have the private key which begins with Letter K one has 49 characters and the other has 54 can anyone help?
A WIF private key starting with K is supposed to have 52 characters:
WIF (Wallet Import Format) (51 characters base58, starting with "5").
Example: 5KMWmYkn5YWkJnUDG4utD9L1HXQv3DBseqqCGsQXmthcEerbA7k

What's the story behind missing 3 and adding 2 characters? It's not too much to make brute-forcing impossible, but if for instance your handwriting is the cause of the mistakes, chances are there are more incorrect characters.

You may want to change the title to "private key missing characters".
hero member
Activity: 1106
Merit: 912
Not Your Keys, Not Your Bitcoin
February 14, 2022, 10:19:28 AM
#2
I'm not sure if that address is valid, the maximum of 34 and 26 minimum in length I have seen.
Try and search it on any explorer and see for your self if it's valid


Uhuh! I thought OP was talking about an address.
newbie
Activity: 26
Merit: 3
February 14, 2022, 10:07:46 AM
#1
Hi Guys i have 2 addresses not sure what the balance is, but i have the private key which begins with Letter K one has 49 characters and the other has 54 can anyone help?
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