He emailed the wallet.dat to himself, I'm going to have him fw me the original email, as I'm assuming he did something with it before he sent it to me.

Thanks, if I get anything from this, you'll def get a piece....

Do you know what the keys that start with 0014 represent? The pub key for those start with 3's, also what is the reason they are showing up in that format? bc1 and 3, in 2011 there were only legacy addresses correct?

Also: what does 2020-12-17T16:32:01Z reserve=1 mean? Not sure where that date comes from in Kxxxxxxxxxxxxxxxxxxxxxxx 2020-12-17T16:32:01Z reserve=1 # addr=bc1xxxxxxxxxxxxxxxxxxxxxxxx does that mean it was overwritten on that date?

So I was able to open the wallet.dat file in the latest version of Bitcoin Core, when I do dumpwallet "~/wallet.txt" the file has a bunch of pub/priv keys in it. For example it has a line that says extended "private masterkey: xprivxxxxxxxxxxxxxxxxxxxxx" followed by 2,000 priv keys that begin with '5' or 'L' and the public keys beginning with 'bc1'. After those 2,000 pub/priv key pairs there are another 2,000 pub/priv keys pairs, priv keys that begin with '00' and pub keys that begin with '3'.

Example: Kxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx 2020-12-17T16:32:01Z reserve=1 # addr=bcxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx hdkeypath=m/0'/0'/696'

00xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx 0 script=1 # addr=3xxxxxxxxxxxxxxxxxxxxxxxxxxx

any ideas?

Update on pywallet: Still couldn't get it to dumpwallet, stuck on this error:

Wallet data not recognized: Bdict({'__key__': b'\bunch of stuff like \x03\x11\xab ', '__value__': b'UNKNOWN_DATA', '__type__': b''})
Wallet data not recognized: Bdict({'__key__': b'\bunch of stuff like \x03\x11\xab', '__value__': b'UNKNOWN_DATA', '__type__': b''})
Wallet data not recognized: Bdict({'__key__': b'\'bunch of stuff like \x03\x11\xab, '__value__': b'UNKNOWN_DATA', '__type__': b''})
Traceback (most recent call last):
  File "pywallet.py", line 2316, in parse_wallet
    item_callback(type, d)
  File "pywallet.py", line 2716, in item_callback
    json_db[type] = 'unsupported'
  File "pywallet.py", line 111, in __setitem__
    return super(Bdict, self).__setitem__(bytes_to_str(k), v)
  File "pywallet.py", line 90, in bytes_to_str
    return k.decode()
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xa1 in position 0: invalid start byte
ERROR parsing wallet.dat, type b'\xa1'
key data: b' bunch of stuff like \x03\x11\xab'
key data in hex: b'long string'
value data in hex: b'short string'

Thanks for your response, I don't know any of the public addresses associated with this wallet.dat. From my understanding you need atleast 1 to dumpwallet. If I download full node, will the addresses show up? How can I recover something off of this wallet.dat file?

I tried moving the wallet.dat folder into ./bitcoin wallet folder and when I open bitcoin-qt -rescan it says:

"Warning: error reading wallet.dat! All keys read correctly, but transaction data or address book entries might be missing or incorrect."

So he emailed me the wallet.dat file, I put it into the pywallet directory, ran python3 pywallet.py --dumpwallet --wallet=wallet.dat

and I get :

Wallet data not recognized: Bdict({'__key__': b'\bunch of stuff like \x03\x11\xab ', '__value__': b'UNKNOWN_DATA', '__type__': b''})
Wallet data not recognized: Bdict({'__key__': b'\bunch of stuff like \x03\x11\xab', '__value__': b'UNKNOWN_DATA', '__type__': b''})
Wallet data not recognized: Bdict({'__key__': b'\'bunch of stuff like \x03\x11\xab, '__value__': b'UNKNOWN_DATA', '__type__': b''})
Traceback (most recent call last):
  File "pywallet.py", line 2316, in parse_wallet
    item_callback(type, d)
  File "pywallet.py", line 2716, in item_callback
    json_db[type] = 'unsupported'
  File "pywallet.py", line 111, in __setitem__
    return super(Bdict, self).__setitem__(bytes_to_str(k), v)
  File "pywallet.py", line 90, in bytes_to_str
    return k.decode()
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xa1 in position 0: invalid start byte
ERROR parsing wallet.dat, type b'\xa1'
key data: b' bunch of stuff like \x03\x11\xab'
key data in hex: b'long string'
value data in hex: b'short string'

To download pywallet on my machine, I ran: git clone https://github.com/jackjack-jj/pywallet.git

I'm not sure what you mean by "you are using an experimental build of pywallet and cloned the Github repo while jackjack was updating stuff."

Could you walk me through?

-Thanks for your help

Hello, I was given a wallet.dat file from a friend to try and recover anything on it. I am using pywallet. I have no idea what any of the public addresses are associated with this wallet. This wallet was also supposedly made before wallet encryption was mandatory.

When I run python pywallet.py --dumpwallet --wallet=wallet.dat  > ~/wallet.dat.json

I get:

Traceback (most recent call last):
  File "pywallet.py", line 2316, in parse_wallet
    item_callback(type, d)
  File "pywallet.py", line 2716, in item_callback
    json_db[type] = 'unsupported'
  File "pywallet.py", line 111, in __setitem__
    return super(Bdict, self).__setitem__(bytes_to_str(k), v)
  File "pywallet.py", line 90, in bytes_to_str
    return k.decode()
UnicodeDecodeError: 'ascii' codec can't decode byte 0xa1 in position 0: ordinal not in range(128)


any ideas?

what is the -bootstrap method? I just went into the directory where bitcoin-qt is but don't know what to do now.

Hello, I am getting an error 'Error: No devices selected' when running this on windows 10 with latest drives 1 gtx 1070 and 5 gtx 1080's. Anyone have this problem before or can help me find the solution?


miner --server zen.suprnova.cc --user cryptomkd.7 --pass x --port 3618
--cuda_devices 0 1 2 3 4 5
--intensity    64 64 64 64 64 64
--templimit    80
--pec          0
--boff         0
--eexit        0
--tempunits    c
--log          0
--logfile      miner.log
--api          127.0.0.1:42000

Having the same problem as well on ccminer cryptonight. 

Has anyone tried using SimpleMining with the TB250-BTC board? I can't seem to get more than 3 cards working without getting PCIE bus errors and I've tried most troubleshooting changes in the bios.

I just want someone who is living proof that someone is using this board with simplemining OS, who is using this motherboard and can you list the bios settings any other settings you've changed in order to get 6 cards running ? 

i've found that adding a linux command 'pci=nomsi' gets rid of the error messages but i'm unsure of how healthy / stable that is.

does anyone have any idea what mobo bios settings to enable to get 6 cards up and running? At the moment I can only get 5 cards running without oc, when I oc them through simplemine, it says there are no OpenCl devices available. Please help 

Hello, I'm having some trouble configuring the z270gt6 motherboard to run 6 rx480s on simplemining. Is anyone currently using this board to mine with? I get pcie bus errors and cannot run more than 5 cards stock oc, when I overclock them I get spammed with an error message and the hashrate gets really low, any help or anyone experienced with this board for mining can help?