Re: [Bitcoin-development] [ann] Bitcoin Core version 0.9.2 has been released

2014-06-17 Thread Jesus Cea
On 17/06/14 11:46, Wladimir wrote:
 For Linux we now build against Qt 4.6, and filter the symbols for
 libstdc++ and glibc.
 This brings back compatibility with
 
 - Debian 6+ / Tails
 - Ubuntu 10.04
 - CentOS 6.5

Under Ubuntu 10.04:

jcea@ubuntu:/tmp/bitcoin-0.9.2-linux/bin/64$ ./bitcoin-qt
./bitcoin-qt: symbol lookup error: ./bitcoin-qt: undefined symbol:
_ZN10QTextCodec11validCodecsEv

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Re: [Bitcoin-development] Chain pruning

2014-04-10 Thread Jesus Cea
On 10/04/14 18:59, Pieter Wuille wrote:
 It's important to
 note that this is a strict reduction in security: we're now trusting
 that the longest chain (with most proof of work) commits to a valid
 UTXO set (at some point in the past).

AFAIK, current bitcoin code code already set blockchain checkpoints from
time to time. It is a garanteed that a longer chain starting before the
checkpoint is not going to be accepted suddently. See
https://bitcointalk.org/index.php?topic=194078.0.

Could be perfectly valid to store only unspend wallets before last
checkpoint, if during the blockchain download the node did all the checks.

Would be interesting, of course, to be able to verify unspend wallet
accounting having only that checkpoint data (the merkle tree can do
that, I guess). So you could detect a data corruption or manipulation in
your local harddisk.

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Re: [Bitcoin-development] Chain pruning

2014-04-10 Thread Jesus Cea
On 11/04/14 00:15, Mark Friedenbach wrote:
 Checkpoints will go away, eventually.

Why?. The points in the forum thread seem pretty sensible.

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Re: [Bitcoin-development] Why are we bleeding nodes?

2014-04-08 Thread Jesus Cea
On 07/04/14 15:50, Gregory Maxwell wrote:
 Bitcoin.org recommends people away from running Bitcoin-QT now, so I'm
 not sure that we should generally find that trend surprising.

What options are out there for people caring about 20GB blockchain?
Depending of third party server is not an option.

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[Bitcoin-development] HEADS UP: Bitcoin 0.9.0 doesn't work on old Linux

2014-03-19 Thread Jesus Cea
I just upgraded to Bitcoin 0.9.0 and I got this:


$ ./bitcoind
./bitcoind: /lib/libc.so.6: version `GLIBC_2.15' not found (required by
./bitcoind)
./bitcoind: /lib/libc.so.6: version `GLIBC_2.14' not found (required by
./bitcoind)

$ ./bitcoin-qt
./bitcoin-qt: /lib/libc.so.6: version `GLIBC_2.15' not found (required
by ./bitcoin-qt)
./bitcoin-qt: /lib/libc.so.6: version `GLIBC_2.14' not found (required
by ./bitcoin-qt)


Sniff.

Red Hat Enterprise Linux uses glibc 2.12.

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Re: [Bitcoin-development] Bitcoin-Qt/bitcoind version 0.8.3 released

2013-06-25 Thread Jesus Cea
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On 25/06/13 19:57, Gavin Andresen wrote:
 Bitcoin-Qt version 0.8.3 is now available from: 
 http://sourceforge.net/projects/bitcoin/files/Bitcoin/bitcoin-0.8.3/

The
 
splash banner shows 0.8.3-BETA.

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Re: [Bitcoin-development] minor bitcoin-qt gripes moving BTC off specific key

2013-05-10 Thread Jesus Cea
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On 07/05/13 14:16, Adam Back wrote:
 3. a UX way to transfer BTC off a specific adress (eg choose from 
 address), rather than having to spend the entire wallet onto a new 
 address, just to get BTC off a specific address.  Doing it that way
 has problems: creates more network traffic/bigger packets, higher
 fees (if any transactions are young/low confirmation), and
 generally damages privacy as all your funds end up linked.

[...]

 Then I wanted to take the .01 BTC off the private key and the FAQs
 etc seem to suggest that the only way to do it is to spend our
 entire balance (from all keys) onto a new address.  Not exactly
 what I wanted, but I did it anyway and the tx fee goes up from
 .0001 which I set it to to .0005 because the transaction was young,
 to avoid network flooding.  Even though transaction I actually
 wanted to move (on the non self-controlled key had a big heap of
 confirmations and so could've been .0001 tx fee).

sendfrom in the RPC interface. Difficult to use (I would like to be
able to use source key, in addition of source accounts) and easy to
make mistakes. But doable.

Would be nice to have an advanced GUI option to chooce source
account/key.

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[Bitcoin-development] Downloading blockchain

2013-04-28 Thread Jesus Cea
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I would like to download the entire blockchain by hand (kind of), but
I can't find software for it. The closest thing I found is
Bitcoin-protocol-test-harness code, but it is two years old and
seems not to work with current bitcoin network.

Python apreciated.

Thanks for your help.

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