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1  Alternate cryptocurrencies / Marketplace (Altcoins) / Selling 87% of all UnitedScryptCoins in existence, and domain names on: September 29, 2014, 12:32:27 PM
We are selling domain names and, together with our entire reserve of more than 8 million coins, or 87% of all coins in existence. Please place a bid.

UnitedScryptCoin is the first merged mineable scrypt coin. See;all.
2  Alternate cryptocurrencies / Pools (Altcoins) / F2Pool「魚池」🐟 on: July 18, 2014, 09:26:04 PM

Stratum mining protocol
Bitcoin+Litecoin+Ethereum+Ethereum Classic+Zcash+Siacoin+Dash+Monero+Decred+Zcoin
PPS+ at 0%
Merged mining with Namecoin+Syscoin+Emercoin
Daily automatically payout
Minimum withdrawal at 0.005 BTC
Customized coinbase string to honor block founders
Simplified Chinese, Traditional Chinese and English language user interface

This thread is for English language support. Self moderated.
3  Alternate cryptocurrencies / Altcoin Discussion / [PTS] ProtoShares Block Explorer on: November 07, 2013, 04:35:06 PM

Please donate. Thanks.
4  Alternate cryptocurrencies / Altcoin Discussion / Solo mined 2 blocks w/ the same coinbase tx. Did I lost the 50NMC in the second? on: April 26, 2013, 06:07:23 PM
I mined blocks 107842 and 107843:

But both blocks have the same coinbase transaction 62806975dab4a1028286c9c1958f88d337ffcb3861590b45a4328046dc35d8e3, the coinbase was exactly the same, thus the hash. I don't know why this could happen, and where my 50 NMC reward goes for the second block?
5  Bitcoin / Hardware / Avalon doesn't work with getwork protocol on: April 04, 2013, 08:40:59 PM
My Avalon only works with stratum. With getwork, it generates tons of getwork requests, but rarely submit solved shares (difficulty=1) to the server. Do you have the same issue?
6  Bitcoin / Bitcoin Discussion / A successful DOUBLE SPEND US$10000 against OKPAY this morning. on: March 12, 2013, 06:22:02 PM
All time UTC+08:00:

08:08 Well before I knew what later have happened, I deposited $10000-worth Bitcoins to BTC-e over OKPAY's Bitcoin payment, I paid OKPAY address 12z2n8YCJw1BEsJhhQPLCTuLqwH341nKnE 211.9093 BTC and 0.0005 BTC as transaction fee.
09:30 The transaction was included in version 0.8's fork, block 225446
10:08 Deposit completed, $9800 credited to my BTC-e account
12:53 After some study, I recognized, the transaction, though included in version 0.8's fork, was never confirmed by the pre-0.8 fork, so I decided to make two double spend transactions on two of the vins of the OKPAY transaction, and broadcasted them with the raw transaction API, 0.001 BTC transaction fee included in each transaction.
13:01 The double spend transaction was included in pre-0.8 fork block 225446

You should know what happens next...

I bet merchants would think twice before they decide to accept Bitcoins after the incident.
7  Bitcoin / Mining / Is my 5970 dead? on: March 07, 2012, 11:56:08 PM
I recently got a MSI 5970. My PSU is not powerful enough so I plugged the mainboard and the graphics card's PCI-E 6-pin to one PSU and the 8-pin to another. In case of power failure, the card usually has a red LED on. But this morning, when I was trying to turn the rig off, I first removed the second PSU (PCI-E 8-pin) then the main PSU. The graphics card then never back on. A system reboot result of no signal, no BIOS power-on self-test, no one short beep from mainboard. Is it recoverable?
8  Bitcoin / Mining / PCI-E 1-to-7 extension card, anyone tried? on: February 16, 2012, 08:30:44 AM
Price: ~US$230

9  Bitcoin / Mining / Will merged mining kill the pools? on: September 08, 2011, 02:38:00 PM
1. miner getwork from pool
2. pool sends a difficult=1 work share to miner
3. miner works on the share
4. if the share doesn't solve the current block, miner sends the result to the pool, and get paid for the share from the pool
5. if the share solves the current block, miner sends the result to a solo mining server, get paid for the block
6. so a miner can get paid twice, and if everyone do this, a pool can never solve a block. lol
10  Bitcoin / Mining support / Sapphire 5850 Xtreme: GPU load: 200% !? on: July 25, 2011, 08:12:08 AM
Soon before the whole machine stopped working. The first card had already stopped working for a couple of minutes:

$ DISPLAY=:0 aticonfig --odgc --odgt --adapter=all

Adapter 0 - ATI Radeon HD 5800 Series
                            Core (MHz)    Memory (MHz)
           Current Clocks :    0           0
             Current Peak :    825           900
  Configurable Peak Range : [550-900]     [900-1250]
                 GPU load :    200%

Adapter 1 - ATI Radeon HD 5800 Series
                            Core (MHz)    Memory (MHz)
           Current Clocks :    825           900
             Current Peak :    825           900
  Configurable Peak Range : [550-900]     [900-1250]
                 GPU load :    99%

Adapter 2 - ATI Radeon HD 5800 Series
                            Core (MHz)    Memory (MHz)
           Current Clocks :    825           900
             Current Peak :    825           900
  Configurable Peak Range : [550-900]     [900-1250]
                 GPU load :    99%

Adapter 0 - ATI Radeon HD 5800 Series
            Sensor 0: Temperature - 127.50 C

Adapter 1 - ATI Radeon HD 5800 Series
            Sensor 0: Temperature - 75.00 C

Adapter 2 - ATI Radeon HD 5800 Series
            Sensor 0: Temperature - 69.00 C
11  Local / 中文 (Chinese) / 买了一台专用挖矿鸡 on: May 30, 2011, 01:34:50 AM

CPU:Intel(R) Celeron(R) CPU 2.93GHz
内存:2 GB DDR2
主板:某个有PCI Express接口的二手主板,具体型号不详

新的8 GB Micro SD卡:80元,读卡器我有旧的
新的显卡:蓝宝石Vapor-X ATI Radeon HD 6870,1580元
因为没有有线网络,所以把一个闲置的苹果AirPort Express反向当着无线网卡用,先凑合能连了网;键盘、鼠标、机箱皆无
操作系统:Ubuntu Linux 11.04,安装在Micro SD卡上
显示器:前些日子买的Apple Cinema Display 27",和MacBook Air共享

性能: 247 Mhash/s
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