Just for the sake of the argument (just theoretical, because practically you can not bruteforce the private key to a given address):
An attacker could simply download the whole blockchain and look for the address containing the most coins. And then simply try to bruteforce this address.
Or, an attacker could withdraw some coins from binance and then track the origin of these coins. In the end he would also find the cold wallet address.

It is not like you could hide it anyway. So there is no reason to not publicly post it.




Not really.
Mathematically it is secure. So nothing can be done here.
Regarding physical access etc.. If there would be 10 private keys.. they probably would be secured in the same way.. So with physical robbery (if they could steal the 1 private key to the cold wallet), they could steal all of their private keys.




You could try to estimate the amount with blockchain analysis. But this won't be an accurate number i think.
And additionally they are generating new 'hot wallet addresses' each day.





Look above:

It would just create additional effort without gaining much (if anything at all).

Generally, yes.

But you can create your live distro with a persistence memory. Anything you will store on it, will be available between different sessions (e.g. installed ledger live will be available).




You asked that already multiple times.
Try it out, or don't. It is up to you.




 

You are using an outdated OS. What do you expect ?
Just update your OS to the newest version (Windows 10) or use electrum together with the nano s to access your coins (even works on windows 7).

It is very understandable why security-orientated software won't be maintained for outdated OS's. Just use the latest version, or don't. Up to you.

No. It is not.


You might believe that it is just pressing a button. But a security-orientated company (which binance definitely is, just as any crypto-based exchange should be), has security policies.
Accessing private keys - outside of the automated process - can only be done with a lot of work / security measurements.

IMO, you should be happy that they even answered that they will try to recover them.
This is not self-evident at all!


If i would run such a company, my policy would strictly forbid anyone to touch any private key. They would be too isolated to be touched by a human being inside of the company.
In this case your coins would not be released to you.

I do know, that this would probably be an asshole-exchange in the view of the majority. But IMO, security > convenience. 
I would require that everyone can properly read and therefore use the exchange as intended.


Long story short.. stop stressing them. They either recover them (which it seems they are doing) or they are not.
Give them their time. Even if it takes 6 months. Just be happy that they even try to do you the favor.

IIRC, Verge was using 11 different algorithms which it cycled through.


Fun Fact: This actually was the reason attacker could perform multiple 51%+ attacks on it.

Instead of needing to gain more than 50% of the total hashrate, the attacker got 50%+ hashrate of 2 of those algorithms (the ones with the least miners) and manipulated the blocks that the 'next chosen algorithm' was the other one where they controlled the majority of the hashrate.
In addition to that, i believe, they found another flaw which allowed them to create a block each few seconds (instead of 1 per 1-2 minutes, don't remember exactly what their average block time was).

This combined was like the ultimate MCA which could happen to a crypto currency.

And i believe they didn't even needed the hardware for that, but simply rented the necessary hashrate (i am relatively, but not absolute, sure about that).


So, instead of having a coin which is more secure, they weakened the security by cycling through multiple hashing algorithms.
Their innovative approach to a ASIC-resistant and more secure coin, led them to be a laughingstock for the whole crypto community (without even mentioning that their so-called 'privacy' was basically non-existent).

Ye.. he had about 220 - 280 posts. Something like that.




Maybe he got arrested and the leading special operator needed to destroy all of his valuable information he has given to us about BTC and possible improvements. 




He probably just was an alt for trolling.



P.s. I know that this post of mine is completely off-topic. Feel free to report / delete it. Just had to put in my two satoshis.

Note, that this does not mean that it will be confirmed in the next block.

ViaBTC is going to include this transaction into their next mined block (according to them).

Since they currently have a share of ~6.60% - 7% (depending on the source), it takes ~14-15 blocks until they mine one (on average!).
So the average amount of time it should take for your transaction to be confirmed (if they are going to include it into their next block) is roughly 2.5 hours.

It could very well be possible that they mine the next block, or no block for the rest of the day. These numbers are the average numbers.

+1 for hilariousandco for actually taking the time and looking it up.

OP, when you copy/paste posts from other user, why take the very low quality one? This doesn't make sense for me.

I am pretty confident (but not completely sure) that someone wrote a bot which scrapes all posts on this forum and searches for plagarized posts.
Then the bot simply reports those plagiarized posts.

If the moderator have the opinion that these posts indeed were plagiarized (maybe even multiple), you are getting banned.

And that's probably what happened.


If the person who created the bot wanted to share the posts you have plagiarized, you would get to see them. Otherwise, if no moderator wants to do the work, not.

With segwit you pay less fees than with a legacy transactions.

Therefore you save on fees with segwit compared to legacy. How can that be misunderstood? 

It doesn't matter whether the fees are at 1 sat/B or 1000 sat/B. A X% decreased fee with segwit will always lead to a cheaper fee with segwit -> save on fees.

This is not that easy to answer.

You need to elaborate what exactly you want to know.

PoW just describes some soft of a crystallographic puzzle which has to be solved.
There are 2 types of PoW:

• Challenge-Response
• Solution-verification

Moreover, these variants can be either CPU-bound, memory-bound or network-bound.


If you are now talking about the 2nd type of PoW with CPU-bound functions (like it is the case in bitcoin), you can basically use any hashing algorithm (is this what you meant by "which algorithm"?) you want.


PoW in a centralized environment (e.g. network login via RADIUS server etc.) always uses challenge-response.
Obviously this is completely different from bitcoin mining.

So you really need to be more detailed about what you want to know and the precise use case.

Mycelium would only be used as a cold wallet if it is completely offline (not a single interface available on your mobile, no wifi, bluetooth, nfc, ... ).
If it is on your mobile which is connected to the internet, has a SIM inserted, etc.. it is a hot wallet.

Cold wallet = completely offline (all the time)
Hot wallet = network interfaces enabled (e.g. connected to the internet)

If you install mycelium on your mobile which you are carrying around with you, i would suggest to not put more money on it than you would carry in cash with you.

If you just want to hold them long-term without regularly accessing it, i'd suggest to either us a dedicated offline device or a paper wallet.

I have replied in your other thread with a recommendation of mine.





I can verify that mycelium creates bip39 mnemonic codes.
They can be used in any other bip39 compatible wallet.

So no problem here, OP.

This is valid, but you messed up with the order.
The syntax is ln -s source destination (just like the mv or cp command).

The above command would create a symlink from the mounted drive to the internal memory of the pi.
But OP needs the blockchain to be stored on the external drive.

So the command should be:
ln -s /home/YOURUSERNAME/standardpath/to/blockchain /mnt/mounted/drive/to/store/blockchain/on

Edited, See post below.


But personally, i'd choose to edit the config instead of creating a symlink. But that's just a personal opinion.

Are you guys really suggesting to use a web wallet for long term storage ?

This is probably the worst of all possible ideas..




Jaxx is not good either. Jaxx doesn't protect your private keys at all.
Once, someone gains access to your computer, your funds will be gone.

---

@OP
If you want to hold your coins long-term, without accessing them frequently and don't want to use a hardware wallet,
you should either use a dedicated offline device (e.g. old laptop / computer) or a paper wallet.

Long term storage doesn't require your wallet to be connected to the internet at all. It is way more secure if you store it completely offline.


You don't even need to create a 'traditional' paper wallet (which can be quite tricky to spend from regarding change addresses etc.).
My suggestion would be:

• Download a live linux distro
• Boot into your live linux
• Download electrum
• Verify the signature of electrum to make sure you have the original one and not a malicious fake version
• Create a wallet in electrum
• Write down your 12 word mnemonic code (this is used to create all private keys associated with this wallet)
• Write down one (or multiple) addresses of your wallet
• Make sure you have your 12 word mnemonic code!
• Shutdown your live linux and format the USB
• Profit.

Then you'll have your 12 word mnemonic code which can always create the necessary private keys to spend from your addresses.

If you want to access them, simply again use a live linux distro + electrum with your backed up mnemonic code. You won't have to worry about change addresses because they are included in your seed (derived from the 12 word mnemonic).


Note, that you don't have to actually use electrum. You could also use any BIP39-compatible wallet (for more compatibility in the future).
Even though electrum does not generate BIP39 mnemonic codes, you will still be able to always derive the seed from the mnemonic. Even if electrum doesn't exist anymore by then.

You can indeed sign messages with electrum.

Make sure to download it from https://electrum.org/#download. And only from this site.
Simply use the executable for OSX.

And, to be on the safe side, make sure to veirfy the signature of the file.


Then connect your nano s with electrum just like described on the website you have posted.
Afterwards you can sign a message, doing as described here.


Note, that you can NOT sign message for your segwit addresses (technically you can, but there is no standard implemented yet. Messages signed with electrum will only show as valid when verified with electrum).

You didn't succeed yet.

What you did is, you ust imported the (publicly available) addresses. You can only view the address. But you can not spend these coins.
Anyone could create such a watch-only wallet.


To be able to access / spend these coins, you either need to use your seed or the private keys.


Please answer these questions:

• Quote from: Lucius on May 14, 2019, 10:46:14 AM
  Is your Electrum BTC wallet maybe 2FA?
  
• Quote from: Lucius on May 14, 2019, 10:46:14 AM
  If your wallet is not 2FA, did you maybe use seed from some other wallet and import it to Electrum BTC?
  

No, what you did was claiming that bigger blocks are more secure.
You still didn't give a single valid argument for that claim. You made a (stupid) assumption without any proof / argument.






Did you even read the post you have replied to ?


I don't know whether you simply overlooked it, or maybe didn't understand it. But there are other on-chain scaling solutions than increasing the blocksize (which btw has nothing to do with scaling, blocksize increase is just postponing the problem and creating new ones).




Must? No.
Can? Small increase maybe, but not necessary at all..

And i already wondered why it has been disabled..

But shouldn't it be possible to prevent DoS attacks by allowing stats to be viewed by members of this forum only + rate limit (e.g. once every 10 minutes) ?
Or another approach could be to slowly update each user statistic, then not generating it on-the-fly but showing the cashed version + updating it weekly ?

I'd also love to have this feature available again.

But the majority of these 1GB of data surely wasn't browser ?

The default setting for firefox is to keep max. 50 MB of data in the cache. Other browser have a similar limit.
I am not sure whether browsing history and cookies count towards this, but this shouldn't be more than 1MB anyway.

You might want to check what CCleaner is deleting (besides cached browser data) from your computer 

Your addresses are generated by your private keys.
And your private keys are derived from the seed which is 'held' by your wallet.dat file.

So yes. If you use the same wallet file with the new versions, your addresses will be the same.


Just make sure to backup your wallet.dat (if you don't have a backup yet) before installing the new version (just in case).