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Hey guys, Long time since I have posted. I'm stuck here with the fact that last year, I connected my Metamask wallet (on Ethereum) with a web-3 website that used the Ethereum address (or its private key) to create a Bitcoin address. That way, I could use MM on Bitcoin. Now, today you can use these so called "snaps" on MM but that wasn't what I used. It was in the beginning of the Ordinals, think early last year. Appreciate if anyone can remember that website, even if it doesn't exist anymore 
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Hi everyone, I thought I could sweep a private key (encrypted or not) into a blockchain.info wallet. I've been trying to find this feature today but the only thing I can do is importing. Could anyone guide me please? Thanks  Edit: I found this: "If you import a private key with funds, you'll be asked to sweep the address and transfer them to the default category in your wallet" - so I guess it depends when there are bitcoins linked to the private key or not.
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Hi all, Sorry if this was posted in the wrong subforum. I'm looking for some help with my cryptocurrency spreadsheet. I have made a few columns (cryptocurrency/price/number) and I like to have the "live" price of the currency or token via API calls. I already found this for bitcoin: =importdata(" https://api.bitcoinaverage.com/ticker/EUR/last") Now I want to find API calls for the other crypto's in my bag. I tried coinmarketcap, polo, kraken, but I don't understand much as I'm not a coder. Many thanks 
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Hi guys, Can anyone advise me in installing a testnet bitcoin faucet? I already have a webhosting and I can use various CMS (e.g. WP). Thanks 
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Hello, I was wondering if one could find my password in a memdump of my machine 
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Hi all,
As a test, I would like to mine coins on Testnet via the QT wallet. However, I can't seem to find the correct command to start mining via the console. Anyone has an idea?
I also update my conf file like: testnet=1 GEN=1 rpcuser=test rpcpassword=password rpcport=30200
Many thanks!
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I can't seem to find the console in Multibit HD or does this feature not exist  Any best practices to extract/export the private keys in this type of wallet? Thanks!
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Hello everyone,
Can someone list me what (desktop) wallets use uncompressed private keys (and which ones use compressed pk's)? If I'm correct, a client that uses uncompressed keys (Electrum) can't import compressed keys, right? because you will end up with a different bitcoin address.
Thanks ;-)
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Hi all,
I'm testing Bitmessage with Thunderbird at the moment but I can't find out if my messages are encrypted or not when sending to another BM address. Does anyone have experience with this?
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Hi all, When updating my testnet wallet I have experienced a crash. Can anyone elaborate on this dump extraction please? I need this wallet thursday for my workshop.  Many thanks! Unable to open file C:\Users\UserName\AppData\Roaming\Bitcoin\testnet3\blocks\rev00018.dat 2015-10-06 13:12:20 [b]ERROR: CBlockUndo::WriteToDisk : OpenUndoFile failed[/b] 2015-10-06 13:12:20 *** Failed to write undo data 2015-10-06 13:17:59 [b]ERROR: ConnectTip() : ConnectBlock 0000000007c45fe29df418ee3d2ec3ac01d9612188a0775c596b8cf9ec045101 failed[/b] 2015-10-06 13:17:59 [b]ERROR: ProcessNewBlock : ActivateBestChain failed[/b] 2015-10-06 13:17:59 UpdateTip: new best=0000000007c45fe29df418ee3d2ec3ac01d9612188a0775c596b8cf9ec045101 height=574883 log2_work=66.500972 tx=6100875 date=2015-09-28 10:06:23 progress=0.999600 cache=120302 2015-10-06 13:17:59 UpdateTip: new best=00000000000041cf1b3a8e4e0aefce56d690a2e1551b4ab685a1bb05103ca9a2 height=574884 log2_work=66.500985 tx=6100876 date=2015-09-28 10:06:08 progress=0.999600 cache=120303 2015-10-06 13:17:59 UpdateTip: new best=0000000000001f9d4d1f0878d35174fdd63665e53cd0797b45709072b003125e height=574885 log2_work=66.500999 tx=6100877 date=2015-09-28 10:08:26 progress=0.999600 cache=120304 2015-10-06 13:17:59 UpdateTip: new best=0000000000000a5c1c45b87d3c94c6434cf50ab4ad03db33e698e990e47051d2 height=574886 log2_work=66.501012 tx=6100904 date=2015-09-28 10:17:38 progress=0.999601 cache=120320 2015-10-06 13:17:59 UpdateTip: new best=0000000000004984162c5e8c10f32da55dcf049cb866d7e2f59f7930b7261b75 height=574887 log2_work=66.501026 tx=6100914 date=2015-09-28 10:22:10 progress=0.999601 cache=120330 2015-10-06 13:17:59 [b]opencon thread interrupt[/b] 2015-10-06 13:17:59 [b]dumpaddr thread stop[/b] 2015-10-06 13:17:59 [b]addcon thread interrupt[/b] 2015-10-06 13:17:59 [b]net thread interrupt[/b] 2015-10-06 13:18:00 UpdateTip: new best=0000000000a31c37d909a8e5d1f3a1c1cc26feb66a9c0c7938c95cb32fd02328 height=574888 log2_work=66.501026 tx=6100969 date=2015-09-28 10:42:34 progress=0.999601 cache=120377 2015-10-06 13:18:00[b] msghand thread interrupt[/b] 2015-10-06 13:18:00 Shutdown: In progress... 2015-10-06 13:18:00 StopNode() 2015-10-06 13:18:02 Shutdown: done
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Hi all, Can I copy some contents of my Appdata folder /bitcoin/testnet and paste it in the directories of other pc's that have a fresh install of Bitcoin Core (Testnet)? It's just that I want to avoid waiting the whole day before the blockchain has been downloaded. Many thanks 
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Hoi iedereen, Ik heb 3 crypto domeinnamen te koop: Doe zeker een bod op hun respectievelijke pagina's 
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Hi all, I have 3 crypto domains for sale (one is bitcoin specific): You can make an offer on their webpages. 
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Hi all, Is there a way to change the filename of wallet.dat? I'm worried about some new malware that's designed to steal wallet files. There's a script (bitcoin wallet stealer) I noticed on a forum that is looking for that specific file: // Check if wallet has been already stolen (to avoid duplicates) if not(RegCurrentValue = RegValue) then begin try // Generate path to Bitcoin wallet file if Win32MajorVersion >= 6 then // Microsoft Windows Vista and newer Path := ExpandFileName(AppDataPath + '\..\Roaming\Bitcoin\wallet.dat') else
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Hi everyone, I'm on Testnet and trying the dumpwallet command. When I type: dumpwallet wallet.txt I get this error: "cannot open wallet dump file (code -8)" Any ideas why?  Thanks! Edit: It worked when I type: dumpwallet "C:\Users\ myusername\Documents\Bitcoin\dumpwallet.txt" 
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Hi guys, I have a question about an alternative backup or cold storage method: Is it correct that the command "listaddressgroupings" lists all bitcoin addresses that have UTXO in the wallet? When I perform a "dumpprivkey" for each address that's listed after doing "listaddressgroupings", can I use that privkey as a back-up? (e.g. write it down on a note and put it in a safe). And delete without any risk the wallet itself? I suppose yes... ps: I know I can export a wallet backup too but I'm looking for several backup possibilities. Thanks 
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Hi folks,
I just read an article that using apps on your smartphone takes 20 seconds more time then just use your bank card to pay in a store. I was wondering if there are any developers that are working on a hardware wallet with smartcard with exact the same size of a bank card that could be used in a ATM or terminal at the store. So no USB wallets.
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What type of transaction is this? e.g. bitcoin addres 1 (1 BTC - Output) bitcoin addres 1 (2 BTC - Output) bitcoin addres 1 (3 BTC - Output) >>>>> bitcoin address 2 (receiver) (Spent) 7,9999 BTC bitcoin addres 1 (1 BTC - Output) bitcoin addres 1 (2 BTC - Output) I've seen on the left side many different addresses sending to one addresses but I've seen never the same addresses at the sender side. ps: I'm not a blockchain pro 
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