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1  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN] MANDATORY UPDATE ██ ZEITCOIN MOVEMENT [FULLY POS] ██ on: February 18, 2015, 05:54:25 PM
Latest news from BTER for those who are affected:-

"We are seeking all ways to compensate our users including selling http://BTER.com  (Debits & funds not included): admin@mail.bter.com"

"CNY and USD withdrawals will be enabled first in these days and the crypto-coins (NXT etc)will be handled later when we make sure it's safe."
From their website:-

Get the latest updates at (获取最新进展):

Twitter:twitter.com/btercom
微博:weibo.com/btercom

BTER.com
Email:support@mail.bter.com
Phone:400-0070-955
QQ: 4000070955

'Seeking' ways including selling the website, which by their own admission is broken and not "safe" ... and "Debits & funds not included" doesn't sound too good. Translation for BTER Bitcoin wallet holders: Don't hold your breath.

BTER also sent me an email advising to keep checking the BTER website for updates - sounds like the window for reclaiming coins might be narrow. Translation: Don't blink.
2  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN] MANDATORY UPDATE ██ ZEITCOIN MOVEMENT [FULLY POS] ██ on: February 18, 2015, 12:18:45 PM
I read this in the Cointelegraph the other day about the Bitcoin core update:-

“Bitcoin Core now uses ‘headers-first synchronization’. This means that we first ask peers for block headers (a total of 27 megabytes, as of December 2014) and validate those. In a second stage, when the headers have been discovered, we download the blocks. However, as we already know about the whole chain in advance, the blocks can be downloaded in parallel from all available peers.”
http://cointelegraph.com/news/113498/daily-digest-bter-hacked-bitcoin-core-updated - (3rd article down).

Parallel block downloading - is that something we could use? How could it be done since syncing is a serial process ... isn't it?
3  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN] MANDATORY UPDATE ██ ZEITCOIN MOVEMENT [FULLY POS] ██ on: February 18, 2015, 11:38:37 AM
I think there are lots of people who are responsible for the solid ground that this coin is built upon - Podizzle included. Some we take for granted and others long forgotten. I'm not mentioning names in case I miss somebody out - and most are well known to this forum anyway.
4  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN] MANDATORY UPDATE ██ ZEITCOIN MOVEMENT [FULLY POS] ██ on: February 18, 2015, 01:53:35 AM
In Another Exchange Bites the Dust News

CAVIRTEX exchange is closing.

http://www.coindesk.com/bitcoin-exchange-cavirtex-close-amid-security-banking-concerns/

 Cool

After contacting hundreds of other coins about the BTER hack and how to stayed tuned, I can tell you that there are hundreds of coins out there ready to bite the dust as well. Their pages are like the desert. Zeitcoin must be one of the very few that has not only retained its value over the last 6 months, but has steadily increased it. We are entering a critical period. I like the continued exposure we're getting on the front page of coinmarketcap.

Can't write too much - sore finger - not from posting on all those pages, but from doing my bit on Valentine's Day. You always get a prick in a bunch of roses.  Wink
5  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN] MANDATORY UPDATE ██ ZEITCOIN MOVEMENT [FULLY POS] ██ on: February 16, 2015, 10:57:43 PM
A big 'UP' for all the Knights who were able to join last nights' teamspeak session. Grin

I feel that every time we meet up, we strengthen the understanding between us, and thus make the team more able to meet the challenges we will face in making Zeitcoin the worlds' favourite currency.

For sure, there will be another one next weekend - same time unless there is a consensus for a change.

Reminder for the rest -

You only have 12 days to claim one of the 5 available seats at the high table - after that you face a long wait.

 Smiley
6  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN] MANDATORY UPDATE ██ ZEITCOIN MOVEMENT [FULLY POS] ██ on: February 16, 2015, 10:51:31 PM
Just saw the news about BTER. Seems I took a hit. I hope not too many others were affected. We were warned. Here's the latest on what BTER have to say on their website :-

7170 BTC got stolen from our cold wallet in this transaction:

https://blockchain.info/tx/f5b0363f03e1ed8bb812c135361ea93590c831ce9f13a3750be1b93575baccc6

720 BTC bounty for chasing it back.


All wallets have been shut down and withdrawals of the unaffected coins will be arranged later.




BTER.com
Email:support@mail.bter.com
Phone:400-0070-955
QQ: 4000070955


Question 1: If it's a cold wallet, how can the coins be stolen?

Question 2: Are we fated in that just as we get to the top of a coin vote poll, the exchange closes down!? We were at least 8th out of 256 and rising faster than all the other coins on BTER.


Q1: Inside job. If you have the private key everything is possible. Cold storage isn't a solution. Thief can import the key --> the wallet is hot.
Different scenario: Bruteforcing with vanitygen, high calculation power and a lot of luck. (watch my signature - It took ~10 Minutes with an old AMD card.)

There are some webpages with thousands of random-generated keypairs - If a key matches with an existing key (let's say the thief is monitoring all accounts >1000 BTC against his database) he would be the winner. And the next question could be: Is "thief" the right term then? (I don't know how key generation in Bitcoin core works, but if it works with a system time randomizer, you could try to generate addresses with a manipulated system time. But that's only a thought.)

A "good" key generation could be: Mouse moving + personal message + systime + actual CPU temperature + ID of the third process in your taskmanager + hash of the current block.

Had too much beer today.

Cheers,
Ray

You're alright. Everyone deserves a drink every now and then. In fact have another. I have a question to ask you.

Say a large number of Bitcoins went missing at a big exchange and you had the blockchain info, how would you 'chase it back' so that the person responsible would be identified and the coins recovered?

Let's pluck a random figure out of the air ... completely out of the blue ... say 7170 BTC for instance ... and the blockchain info was ... hmmmm, let me think ... let's say:-

https://blockchain.info/tx/f5b0363f03e1ed8bb812c135361ea93590c831ce9f13a3750be1b93575baccc6

Purely hypothetical of course, but how would you do it? Now take your time ... nice and slow, while I take notes ...
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