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BTW.
My understanding of using airgapped computer is that you create the transaction in your watch only hot machine, then transmit it to your airgapped machine and sign it with your private keys and then transmit it back to your hot watch only wallet and send your signed transaction to the network.
This way your watch only wallet that is connected to the net can create the transaction, calculate the fees etc.
And as I said above, the safest way to transfer the transaction between your machines is by using QR codes and the cameras of your machines.
Sounds hard, but after you have done it a couple of times, it is not.
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Can you please explain, how do I safely make a transaction with this setup?
Just wanted to add, that the most secure way to transfer your transaction from your airgapped laptop to your hot-laptop is by using a QR-code. If you move it using a USB-stick it is not as safe. Some malware can use USB-sticks as a medium. In linux creating QR-codes is really easy. Just install "qrencode" and use it like this: qrencode -o qrcodeimage.png 'This text will be in the created QR-code' It will make an image file which will contain a QR-code that has for example your transaction in it... |
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Hey guys. I don't remember my pin code. I tried all the pins I could think of... I'm lost. What are my choices? I do not have the seed and my phone is not rooted.. Any help please... Thank you
Is that a 4 number pin? Why not try all the possibilities. There are not that many. |
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Hey,
Anyone knows the crypto formula for generating BTC address?? is it base on date+time...??
Any possibility of repeating an address??
Yep. First you need to have a 256 bit random number, and then you convert it to an address. The random number is supposed to be fully random, so it is not based on anything. By repeating an address, you mean address collision, where you generate an address that is already in use. That is possible, but the changes are so small that winning a lottery 100 times in a row is much more likely. So you are better off playing lottery than trying to find an address collision  |
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I get a different public/private key than the one I put my Bitcoins in. My bitcoins are still in the wallet that I transferred to, as I still have my public key. I just don't have my private key.
Do you remember how you created the brainwallet. What program did you use. There are many ways to make a passphrase to an address. bitaddress.org uses sha256 hash to change passphrase to an address, but whatever program you used could do it differently. Scrypt has been also used. Some more info in the link https://bitcointalk.org/index.php?topic=43496.380 |
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Is it possible to create a similar "capture" program that simply captures and returns the btc back to the sender, along with some sort of message that can be used to flag the transaction? This way, over time, it will be easier to determine the source of the code.
Nice idea, but not a good one. Sending coins back to the address they came from could just end up losing the coins permanently, because now days wallets do not re-use addresses, and the original owned might not have that address in his wallet anymore. |
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Really interesting.
And soon there will be many more people trying to steal coins from that kind of addresses.
I believe his assumption that it is some wallets change address code doing this, is probably correct.
Would be great to know which wallet it is.
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your numbers are very misleading.
from 0 to $1000 (the first one) is 100,000% rise in 1789 days (assuming you are correct about your day counts).
How did you get the 100000% ?? It is quite difficult to calculate a % when starting from 0. The correct % is infinitely large. PS. Sorry for the nitpicking  |
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-----BEGIN BITCOIN SIGNED MESSAGE-----
This is Bart1shka (bitcointalk.org) - 29.11.2017
-----BEGIN SIGNATURE-----
16oXuKTmmMbPcsSACoTjRiSNVJdiKb5J2Q
HzXhIVSJI45VCfCCKZxKup8YrSuKseFkY4UTOXrCnOGP86ibzNv4T1upTHwrBp9aqVeDXlmmHfmii2i ur53dZQk=
-----END BITCOIN SIGNED MESSAGE-----
Kindly quote and verify. Thanks.
Here is my address containing boatloads of coins  121f7zb2U4g9iM4MiJTDhEzqeZGHzq5wLh |
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I just made a copy of Blockchain in searchable form containing only addresses having more than 100BTC. It is only about 7Mb
If I would limit it to addresses containing a 4 figure amounts of BTC it will be even much smaller than that.
Edit just made one containing only addresses with more than 999BTC and it is only 70kb. Not too many addresses in that.
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Hello,
I have a private key, 2 letters i don't know and i really need to import the private key.
It's a 4 figure amount of Bitcoins...
I need a script where i can add my key that search on the blockchain keys that are the same. +/-
Wit 2 characters that are wrong. The key is 9 years old.
Can someone advice me a script to scan the Bitcoin blockchain?
Thanks.
P.S. 1 Bitcoin for who give me the script that find the 2 characters that are lost in the private key.
What format is the private key in? Hex: contains only numbers and letters a-f. (64 characters) Wif: Numbers and letters big and small (about 51 characters) Base64: Numbers, Letters, special marks like +,= etc.. (44 characters) Number: Or just normal numbers anything between 1 and 115792089237316195423570985008687907852837564279074904382605163141518161494337 Do you know where the 2 letters are missing from? Two first? Two last letters? Or somewhere else? Would be quite an easy program to write. All you need is blockchain in search-able form (I have that) and a program that can change private key to an address. And then loop through all the possibilities and check them against the blockchain. Have to say it is a little suspicious though, because there were no bitcoins 9 years ago  Edit: if you know where the 2 letters are missing you can also go through the possibilities manually. It would take long time, but would be quite possible. |
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You can fork your rddsd7-coin from btc blockchain whenever you wan't. Probably it won't have any value, but you can do it.
That is the main reason why Bitcoin is the most valuable coin. What is the correct value of new copies of bitcoin, if there can be unlimitedly many new coins. There can be only one First real cryptocoin |
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would you keep it to yourself or would you share the information? Are you of the opinion that he might be in danger if his identity were to be revealed?
If I told you, would you believe me? I don't think you would believe me even if I was right. Personally I suspect that Hal Finley was Satoshi. Cant be sure though. |
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Today I have generated new bitcoin wallet using NBitcoin and I found that it was having already balance present in it. Although balance is of 0.037296 BTC which is less but still I am not sure how I got wallet key which have already balance in it.
If its so then how we can say BTW is safe?
I looked from the blockchain. There are only 4 addresses with balance of 0.037296 BTC . So which of these is yours?  1BL7BiH2poVZ8Uuj2LVT3WXajxfir1db8G 0.03729600
1CYtTy7XjyWmBRzQsdPSLz1hNE2mwejw4t 0.03729600
1HvXCTEvPhjxZuqN961FjT4zjvzaf1Bzjh 0.03729600
3PVkw5qrCr3o62vvrAH3S1f13MFLVHdZ6f 0.03729600
And the last one of those is probably a multisig address, so I am pretty sure that isn't it. Bitcoin is considered safe, because it is very improbable that address collision would happen. Not impossible though. |
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Can you post the address... and a signed message from that address proving that you actually have ownership of it? The odds of this being real are pretty small... if true, congrats, you just "broke" BTC So... Anyone owning a wallet address with some balance in it is now a PROOF that a collision has occurred I do not see how that proves anything. However. If the address has an old spend action in it, and you are able to spend with a different private key publishing a different public key to the blockchain in the process. That would indeed convince me. Having 2 different keys that generate the same address would definitely be an address collision. And it is 2^96 times more probable than accidentally finding the exact same private/public key pair that generates the same address. I believe that an address collision is bound to happen sooner or later. The probability is very low, but that does not mean it is impossible |
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Amazing post. Very informative especially for newbies like me. Can anyone confirm if everything listed on there is accurately legitimate?
A good and interesting post. Some corrections: First transfer to Hal was 10 BTC (not 100 BTC) 1800 mined bitcoins every day (not 3600, which was true in 2014 when the image was made) FBI doesn't own silkroad coins anymore. (but maybe still did in 2014?) 64% of bitcoins that have never been touched is waaay too high. |
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Sry but im new and dont really understand what you are saying... Still dont understand why the money isnt showing up in my Wallet when they were sent successfully.
Blockchain.info shows that you coins are on your Address just like you wanted. https://blockchain.info/address/3CzArgbxZYDwFhvMSgFhTNNkeTTno6jZtvThe coins are there. Maybe your wallet software is not connecting to the net? Could be your firewall blocking your wallet software. What wallet are you using. (in the newest version of electrum many people have had the same problem, but there was an easy fix.) |
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Unspent just means that the receiving address has not used those coins yet.
It is a good thing. It means that you can spend them in the future.
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1. As the number of coins generated increases the complexity/calculation load increases. I assume different currencies are at different complexity levels due to their age and the number of coins generated, so hardware that might be mediocre for BitCoin might be more than adequate for another coin, so I 'm looking for on the complexity/calculation load for various coins.
Actually difficulty increase is not based on how many coins have been "generated", but rather on the amount of hashing power available in the network. The difficulty is set every 2 weeks so that regardless of how much hashing power is available new blocks will be found about every 10 min on average. You are right in your assumption. While bitcoin is really hard to mine, altcoins are a LOT easier to mine. |
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WHAT SHOULD I DO WITH MICROSD CARD AND USB STICK?
Please state reasons for choosing one of the options.
1. Burn 'em. It is not worth risking your BTC for 20 bucks of disposables.
2. Wipe both. If so how?
3. You can use both because the process that you described does in no way, shape or form leave a trace that a malicious party could use to restore your master private key or seed?
I would like to LEARN what happens with such drives under Linux distribution and also recycle them in order to repeat the same process for another altcoin or a smaller BTC amount that I can use as semi-cold storage.
Or you could just install the Linux with encryption ON. Then your Linux partition on the SD or USB will be one encrypted file and after you delete it and overwrite even a small amount of the data it becomes impossible to un-encrypt. It is essentially a damaged encrypted file for anyone trying to access it. And even if you would not destroy the data, the Linux would still be encrypted and impossible to access. This way you wont have to throw those SD:s or USB:s away. |
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