Great! didn't know that, thx a lot!

The transactions signed and unsigned are pretty safe, I agree.
I just wish I could pass the watch-only wallet from offline to online in the same way like a transaction (with QR, sound, webcam,etc).
Anyway I have learned a lot! thank you both!

How about this kind of software attack:
1. Someone some how detected that I downloaded Armory
2. While copying the armory to my offline PC the attacker succeeds to also copy another malware file also through the USB hardware 
    to my offline PC (the armory itself is valid but he has another spying file).
3. When creating the offline wallet the malware is there spying.
4. When I am copying the watch-only wallet file with the USB hardware to the online PC the attacker passes again a hidden file with all my private keys to the online PC.

Is this kind of attack is not something I should be worried about?

Thanks again!

bob123,

Thanks a lot for your patience and through answers!

Thanks a lot!
But this does solve the problem only partially though I think.
How can I know that there is no malware inside my USB which copy itself automatically as a hidden file to my offline,
getting all the data and bringing it back to the online PC in a different hidden file or something when I think I am only coping the watch-only wallet?
Maybe I am paranoid but Armory has been here for quite a while, isn't it possible that this sort of malware exist?

Thanks!
But can you please explain what signature and how to create it? (noob here sorry)

Hi,
Probably not the first to ask it but can't find this here.
Copying armory software with USB to offline PC and installing it there can bring a virus to the offline PC.
Then even when using a new USB to pass watch-only wallet fie to online PC the virus can go back to the online with all the offline wallet data.
Isn't this a big security fail? What am I missing?
Thanks

Great, thank you all.

Assuming i didn't touch my BCH since it was created.

If I just want to send a BCH offline transaction (let's say to my new wallet), Can I broadcast it with an offline node?

Thanks, the problem is, as stupid as it may sound, that I don't really know how to download the code and build it with the changes, it will probably take me 2-3 days to do just that.
I would have done that don't get me wrong but I think that this is a bad practice.
goatpig don't want to support BCH which is his right and I respect it.
So now for each new version of both armory and BCH you will have to find more and more workarounds to make it work which is really a bad practice.
Armory is for BTC.
I think it is best to just find another wallet for BCH. Any Ideas?

Got it, thank you for your hard work!

So if I understand correctly, starting may 15th, you can't use armory on the BCH chain anymore?

Thanks !

I am confused, with a custom script it is possible?

Let's say I am sending 1 bitcoin from address "A" to address "B"
Is it possible to do it in such a way that:

1)to transfer bitcoin form address "B" to address "C" it can only be done with private key "c".
2)to transfer bitcoin form address "B" to address "D" it can only be done with private key "d".

and of course "c","d" are different.

I am unbanned! thank you all!

No, I am asking if for international purchases it is possible to make the transaction cheaper than any other methods (without the seller giving and discount)  if the process is:

1) buyer pays fiat money with his country's currency
2) the money from 1 is used to buy BTC
3) the BTC from 2 is used to buy seller's fiat currency
4) the money from 3 is payed to seller.

2+3 should be executed fast enough so there won't be any changes in  BTC rate.

  

Pay with bitcoin is too difficult at this point I think because people need to learn what bitcoin is and how to use it and because it is volatile.

Instead people should pay via bitcoin. Lets Say I buy something from a US website but I am not from the US.
I got 3 options of payment:
pay with Paypal and it will cost me 102$
pay with bank wire  and it will cost me 100$
pay via bitcoin and it will cost me 98$

pay via bitcoin = I pay 98$ worth of my country's currency, I don't know what bitcoin is and I don't care, all I know is it is cheaper than the other methods of payments. behind the scenes BTC is bought with my country's currency and the BTC are sold for US dollars to pay the website.

So this is like "bitpay" for the client side as well.

Do you think it is possible to make this "pay via BTC" cheaper than other methods at least for international purchases?



 

 

I don't believe this is the case,
He had a newsletter https://bitcointalk.org/index.php?topic=509527.0
And he used the email written in his profile to send the news letters.
Also, If you follow the bitcoins I sent him it seems they ended up in an exchange or something like that
and not stored in some private persons wallet.
May be I'm naive (again) but I think that something may have happen to him and the coins are stuck in one of the exchanges
and all I need to do is find out where they are.

Thank you all for your comments.
No collateral, Yes I am stupid, please, this is not the point here!
I would like to know any piece of information on him that I can't get from his profile here.

Well,

arepo disappeared 2 months ago

If some one knows him or have any way to contact him or have any information about him please let me know

Thanks