Search content
Sort by

Showing 20 of 150 results by manuel
Post
Topic
Board Bitcoin Discussion
Re: [ANN] Bitcoin blockchain data torrent
by
manuel
on 16/12/2013, 09:15:13 UTC


I use Electrum on my laptop but also keep a full node 24/7 on my home server that will hopefully keep me from connecting to a cancer node. So please don't answer with that scalability simplified payment verification client block height vs. depth crap. It's a simple question.

What's a "cancer" node?
Post
Topic
Board Bitcoin Discussion
Re: Mike Hearn, Foundation's Law & Policy Chair, is pushing blacklists right now
by
manuel
on 16/12/2013, 09:12:20 UTC
Well speaking of it being a lost cause... any response to this?

https://www.youtube.com/watch?v=PfeA94BedQI

urgh. The speculative bubble argument and the scalability argument. This guy even says "fixing" scalability would require a degree of centralization. That's a strong claim and it's off-topic to discuss here. For a potential solution that doesn't break decentralization see this thread: https://bitcointalk.org/index.php?topic=359582.0.


Tell me more about how every regular user is going to run a 10 or 20 terabyte storage array just to support their individual copy of the blockchain?
Post
Topic
Board Bitcoin Discussion
Re: Mike Hearn, Foundation's Law & Policy Chair, is pushing blacklists right now
by
manuel
on 16/12/2013, 09:10:52 UTC
Well speaking of it being a lost cause... any response to this?

https://www.youtube.com/watch?v=PfeA94BedQI

I watched that last week and got thinking about the problem, I can think of a fiew ways to solve it* so it is back to rose coloured glasses for me. (I meant to post it to reddit but forgot. It is worthy of discussion)  

* 1) a business idea all rights reserved
   2) a number of fundamental protocol changes
   3) an unprotected free market solution.

Only number 2 sounds like a real potential solution but you haven't given anything of substance WHAT PROTOCOL CHANGES?
Post
Topic
Board Service Discussion
Topic OP
Why does blockchain.info say the blockchain is 12.x GB but my data folder is 15+
by
manuel
on 15/12/2013, 23:23:12 UTC
Any ideas?

I'm using the latest version of the standard bitcoin-qt.

https://blockchain.info/charts/blocks-size
Post
Topic
Board Bitcoin Discussion
Re: Mike Hearn, Foundation's Law & Policy Chair, is pushing blacklists right now
by
manuel
on 15/12/2013, 23:21:56 UTC
Well speaking of it being a lost cause... any response to this?

https://www.youtube.com/watch?v=PfeA94BedQI
Post
Topic
Board Bitcoin Discussion
Re: Mike Hearn, Foundation's Law & Policy Chair, is pushing blacklists right now
by
manuel
on 15/12/2013, 22:17:25 UTC
I wish I could boycott the USA.

Everybody with their head screwed on right does too.
Post
Topic
Board Bitcoin Discussion
Re: Mike Hearn, Foundation's Law & Policy Chair, is pushing blacklists right now
by
manuel
on 15/12/2013, 21:57:03 UTC
He just wants to be at the head of it all. Like he doesn't get that what people want is decentralized and he just won't give up on centralized. If someone wants a centralized one, it already exists. Don't ruin this one. Use what you have already, or do you want to break this too.

Yea, it's called USD.  What an asshole.
Post
Topic
Board Bitcoin Discussion
Re: Are bitcoins indestructible?
by
manuel
on 15/12/2013, 21:56:24 UTC
How do people know somebody doesn't have the private key to that [1BitcoinEaterAddressDontSendf59kuE] address all along and they're just sitting on the coins?

Because the person that created the address 1BitcoinEaterAddressDontSendf59kuE never had the private key.  They simply started with the string "1BitcoinEaterAddressDontSend" and then added the correct checksum "f59kuE" onto the end of the string (it is a bit more complicated than that but you get the point).

Since they never had the private key no one will ever have the private key so any coins sent to that address are lost forever.

My question is how do you know what to add to the end?
Post
Topic
Board Bitcoin Technical Support
Re: Discovered bug when importing private key
by
manuel
on 09/12/2013, 21:57:49 UTC
Are you sure the private key is valid? It should be long and start with a 5. For example:

Code:
5JRp9CTGhGcih9VUMV1yvACjS5UxJgEaXhU3MD51Fyc3BeNr2Sw

Absolutely it's valid.  I did it on two different computers same result.  Don't get me wrong it works fine.  I get the balance on the key and I can send and receive no problem.

The issue is that:

1.) THe response in the console that I assume should probably say "Success" or something is blank.

2.) The public address appears in the address book instead of my receiving addresses until a restart of bitcoin.  Then it moves over where it belongs and everything works as normal.
Post
Topic
Board Bitcoin Discussion
Re: Are bitcoins indestructible?
by
manuel
on 09/12/2013, 20:25:54 UTC
Bitcoins are very abstract.  The definition of "destroyed" gets fuzzy here.

Blocks claiming less than the full possible reward most closely fit, in my opinion, the concept of destroyed.  These coins can only be recovered by a change in the protocol.*  Also in this category is the permanently unspendable coins from one or the other of the two blocks that had identical coinbase transactions.

What is "coinbase"?  How do you get a block that has "less than the full possible reward"?

Quote
Coins sent to keyless addresses are the second best fit.  No one has ever known a privkey that could redeem those coins, and so we have no reason to believe that such a key exists.

Coins sent to keys that were generated but then lost is the weakest fit.  We know that a key to that address has existed in the past, and so there is every reason to believe that the key could be found again.  Thermodynamics blocks us from doing so, but math itself doesn't bar our way.

* Such a change may not be completely crazy, but is still really unlikely.  It wouldn't hurt much to allow miners to claim some fraction of the coins lost through this method in the past.  Of course, it wouldn't help much either...


How do you get a valid address with a key that "doesn't exist"?  How is an address where nobody ever had the key any different than an address where somebody had the key but has really absolutely permanently lost it.  Let's say they generated it in volatile memory, wrote it on paper, shut down the computer and then burned the paper...  how is that any different to a valid address where nobody ever really had the key?

And on that note how do you make a valid address but without ever getting the private key?  Aren't valid addresses generated from private keys?  I mean when I import a private key it knows the address without me telling it just from the private key.
Post
Topic
Board Bitcoin Discussion
Re: [ANN] Bitcoin blockchain data torrent
by
manuel
on 09/12/2013, 18:44:18 UTC
I'm running this on a Mac if that makes a difference. Seems like 0.8 is buggy.
Or run this Windows software: IntelBurnTest
I am interested in this too.
If you have a PC, an easy to use test is OCCT, it has several system-stressing tests that will report computation errors, and monitors temperatures and voltages while they run.

I have a mac but I was able to download this intel program from your link and run it successfully.  What I'm looking for is somebody I can compare notes with on performance and operating temps.  It's an intel core based mac so I suppose (but not sure?) the raw performance and operating temps should be comparable to any other computer with the same chip?
Post
Topic
Board Bitcoin Discussion
Re: [ANN] Bitcoin blockchain data torrent
by
manuel
on 09/12/2013, 17:12:09 UTC
I'm running this on a Mac if that makes a difference. Seems like 0.8 is buggy.

Seems like your computer is sick.

Run Linpack for a few hours, your computer will likely give inconsistent results, crash, hit 99 degrees C, throttle cores.

http://software.intel.com/en-us/articles/intel-math-kernel-library-linpack-download

A forum for it

Or run this Windows software: IntelBurnTest

I am interested in this too.  I had some flakey performance at times on one of my computers.  That forum has registration disabled.  Any other resources where I can compare notes on temperatures and GFLOP rating, etc. to see if everything is running as it should?

Thanks.
Post
Topic
Board Bitcoin Technical Support
Topic OP
Discovered bug when importing private key
by
manuel
on 09/12/2013, 10:48:13 UTC
It doesn't seem to effect the functionality but it's weird.  I duplicated it on two different computers running OS X 10.9 and v0.8.5-beta.

When using the importprivkey command when the command completes the success message is blank, there is just an icon with a blank line.

After completion the key you just imported shows up in your address book (i.e. like an outgoing address) instead of under receive as incoming address.  The coins still show up in your balance but the address is on the wrong screen.  When you restart the program this corrects itself.
Post
Topic
Board Bitcoin Discussion
Re: You can't import a key pair that's been used before? What?
by
manuel
on 08/12/2013, 22:13:47 UTC
It's just a rescan, you can import it.

I am not sure what "just a rescan" means in this context but yes I can confirm I can import an address with a balance.  Thanks.
Post
Topic
Board Bitcoin Discussion
Re: Are bitcoins indestructible?
by
manuel
on 08/12/2013, 22:12:51 UTC
How do people know somebody doesn't have the private key to that [1BitcoinEaterAddressDontSendf59kuE] address all along and they're just sitting on the coins?

Because the person that created the address 1BitcoinEaterAddressDontSendf59kuE never had the private key.  They simply started with the string "1BitcoinEaterAddressDontSend" and then added the correct checksum "f59kuE" onto the end of the string (it is a bit more complicated than that but you get the point).

Since they never had the private key no one will ever have the private key so any coins sent to that address are lost forever.

Ouch....  Shocked

Luckily it only has 1.6 BTC right?  Or did I look that up wrong?
Post
Topic
Board Bitcoin Discussion
Re: You can't import a key pair that's been used before? What?
by
manuel
on 08/12/2013, 22:05:44 UTC
It shouldn't be right. Perhaps what they mean is, Bitcoind/Bitcoin-qt will rescan the blockchain so it can retrieve any spendable outputs and display your balance.

Hope so.  I'm testing now.  It sure takes a lot longer than a minute or two if you don't have a very fast computer.  And if you stop it in the middle of the scan you can corrupt your blockchain and/or wallet.   Shocked
Post
Topic
Board Bitcoin Discussion
Topic OP
You can't import a key pair that's been used before? What?
by
manuel
on 08/12/2013, 21:54:53 UTC
What good is being able to import a key if you can't import one that's been used before?  Is this a typo?  Is this a joke?  What good is backing up my key pairs for a rainy day if I won't be allowed to import them if they've been used before?  This can't be right, is it?


Quote
(space)bitcoind importprivkey "5yourveryveryveryverylongprivatekeystring" "my-new-key"  # "my-new-key" is a label for the key/address pair and is optional

The importing process is now started. Bitcoind will rescan the entire block data to ensure this key has not been used before. This process will take from one to two minutes, depending on your CPU performance. DO NOT abort it before finishing!

If no errors occurs, the import is a success and Bitcoin-QT users will be able to see the new address in the GUI immediately. If you need to import more keys, just repeat the instructions above. There is currently no command to import a batch of private keys so you will need to wait a minute or two for each key to be imported.
https://en.bitcoin.it/wiki/How_to_import_private_keys
Post
Topic
Board Armory
Re: Using Armory
by
manuel
on 08/12/2013, 17:49:50 UTC
Once you encrypt the wallet, and print your paper backup, importing the wallet via the paper passphrase will NOT import your previous password. That would be why the paper backup states that anyone with the keys on the paper would have unrestricted access to the wallet.

If you're looking to spend, you would still only require your wallet password as normal.

Armory would still use the blockchain, and so I believe that if it were unsupported you could still use it, but the security holes and what not that could arise would not be patched. Using unsupported software is generally a bad idea, as updates to the Bitcoin protocol may require updates to Armory as well.

I didn't understand your answer. 

Here you say:

"That would be why the paper backup states that anyone with the keys on the paper would have unrestricted access to the wallet."

Which sounds like you do NOT need the passphrase only the paper backup to use the wallet, including spending.

Here you say:

"If you're looking to spend, you would still only require your wallet password as normal."

Which sounds like you would need the passphrase to spend.

I don't undserstand, which is the case?

Regarding the last part of your answer, maybe you didn't quite get what I'm asking.  What I'm saying is let's say that today I use armory to create a wallet (maybe an offline wallet) and a paper backup.  Then let's say I put in a safe box for 5 years.  Then when I want to finally retrieve it and spend, let's say armory hasn't been updated in years.  Maybe the last version is no longer even compatible with the current releases of bitcoin.  How hard is it going to be for me to get access to my coins?

What I'm getting at is I want to make some kind of paper backup that will allow me to easily access the coins even if all the current clients are no longer being kept up to date.

Do you know what I mean?
Post
Topic
Board Armory
Topic OP
Using Armory
by
manuel
on 08/12/2013, 15:42:07 UTC
If I use armory following this tutorial there is one point I'm not clear about... http://www.reddit.com/r/Bitcoin/comments/1qcrzn/protect_your_btc_investment_how_to_make_an/

If I encrypt the wallet does it mean I need the encryption pass passphrase AND the paper backup in order to do anything with the paper backup or just the paper backup?

If armory becomes no longer supported anymore - how hard is it going to be for me to restore and utilize the funds?  What kind of backups should I be making?  Is the paper backup only good enough?



Post
Topic
Board Speculation
Re: Bitcoin at $600 and going down down
by
manuel
on 07/12/2013, 14:31:47 UTC
Sell half your coins if your worried. Keep the others. Buy back when really low. Dilution.

rpietila predicted $500 last week. His trend line shows that to be the low. Silly to sell now at $600 if true.

How did he manage that?