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Optortcob

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  1. Like
    Optortcob reacted to SuperTramp in Wassssssss Up MinCoiners !!!   
    WOoT WoOT !!!
     
     
    MinCoin Is Awesome !!!!!!!
     
    mincoin
     
    mincoin
     
    mincoin
     
    mincoin
     
    mincoin
     
    mincoin
     
    MinCoin !!!!!!!!!
  2. Like
    Optortcob reacted to SuperTramp in MinCoin, CryptoCommodity or CryptoCurrency?   
    For me this is pretty clear, if it acts like a commodity, and works/looks like a commodity then it IS a commodity!
     
     
    There you have it. MinCoin, A Crypto/Digital-Commodity......as far as I'm concerned.
       -the same could be said of Bitcoin, Litecoin and the rest!
     

  3. Like
    Optortcob reacted to Me123itisme in Is there somewhere a Faucet for MNC?   
    is there somewhere a MNC faucet available?
  4. Like
    Optortcob reacted to sdf in Avoid Getting Caught in Pumps-and-Dumps!   
    Text pasted from my article here: http://josephshanahan.com/howtospotpumpanddumps.html
     
    Two Simple Rules to Spot (and Exploit) Pump-and-Dumps!

    Taking a look at the charts at mcxNOW or cryptocoincharts, you can quickly see patterns which resemble the classic pump-and-dump. Here's how to make some money during the frenzy!

    The alternative cryptocurrency market (altcoins for short) is rife with what predatory traders make their living off of: pump-and-dumps. If you've ever bought an altcoin on the advice, news, or analysis of someone you don't know very well, there's a good chance that the price quickly dove below what you just paid for it. Why is that?

    You likely fell victim to a pump-and-dump, which is a manipulation of the price of a coin based on shaky news, orderbook wizardry, or a big owner taking a payout. Don't worry- it has happened to all of us, even though most people won't admit it. In fact, most traders love seeing the early signs of a pump-and-dump, or even go out of their way to manufacture one themselves to make money off of you!

    So, how do you make money in a market that might be rigged against you? Here's a list of tips and rules I follow when buying a coin:
     
    Rule 1: "A coin is as strong as its development team".

    This rule is so amazingly true that it defies all technical analysis ever made. This is because altcoins are a bit like stocks: you have to trust that the leadership and community supporting a coin are constantly thinking of new services and code to make a coin more useful compared to others.

    Take for example Litecoin, a coin that in my opinion is not scarce, not fast, and no longer "innovative". There are hundreds of thousands of Litecoin made each day, which requires many new traders to support the current price. The blocks are slow compared to WorldCoin or MinCoin, which safely support block times of 30 seconds to 1 minute. And the only major innovation the development team offered- the scrypt algorithm- has been copied by tens of other coins. Further, the development team have publically asked for money to continue to develop the coin. This sounds incredibly weak to me.

    So, if you see an upward movement on Litecoin, be wary! What is the news that spurred the buying? Is it a new service that is coming out (fiat exchange? TOR marketplace?)? Is a new big buyer (a "whale") buying coins? If you buy on the uptick, the people selling to you are likely taking a profit. If too many people decide to take a profit, you will be left "holding the bag", i.e., the overpriced coins you just bought!!!!
     
    Rule 2: "Buy on silence, sell on rumor, buy again on delivery".
    In this market, there is no news. There is only silence, speculation, and the actual delivery of a service. Those who buy on silence stand to make the most gain, because they are risking the most money without any indication anything positive is planned for the coin.

    Then, when a new idea is proposed to the community as "news", people will quickly start buying. The classic example we all know is "Litecoin will be on Mt. Gox soon!". Every LiteCoin pump revolves around this, almost like a joke. And yet new buyers continue to lose money on it, because the rumors never materialize.

    If Litecoin ever does end up on Mt. Gox, however, it would be wise to buy. Once a service is delivered, the person providing that services has the intention of keeping it going. This is because it makes him money- and gives him recognition.

    So there you have it! Two simple rules that you should always follow when considering buying a coin during a high volume frenzy. Sometimes it is better to miss the boat than hold the bag. If you aren't confident in spotting high and low prices, it is better to get in on the bottom through the above scouting tips.
  5. Like
    Optortcob reacted to SuperTramp in [ANN] *Bitcoin Forum Compromisedâ€�* Please Read.   
    Everyone, please read below and take necessary precautions.
     
     
    "Unfortunately, it was recently discovered that the Bitcoin Forum's server
    was compromised. It is currently believed that the attacker(s) *could* have
    accessed the database, but at this time it is unknown whether they actually did
    so. If they accessed the database, they would have had access to all
    personal messages, emails, and password hashes. To be safe, it is
    recommended that all Bitcoin Forum users consider any password used
    on the Bitcoin Forum in 2013 to be insecure: if you used this
    password on a different site, change it. When the Bitcoin Forum
    returns, change your password.

    Passwords on the Bitcoin Forum are hashed with 7500 rounds of
    sha256crypt. This is very strong. It may take years for
    reasonably-strong passwords to be cracked. Even so, it is best to
    assume that the attacker will be able to crack your passwords.

    The Bitcoin Forum will return within the next several days after a
    full investigation has been conducted and we are sure that this
    problem cannot recur.

    Check http://www.reddit.com/r/Bitcoin/ and #bitcoin on Freenode for
    more info as it develops.

    We apologize for the inconvenience."
  6. Like
    Optortcob reacted to SuperTramp in Consolidated Scrypt Based Mining Guide for 5xxx, 6xxx, and 7xxx GPUs (MinCoin Mining)   
    As long as MinCoin is using a scrypt based hashing algorithm this litecoin minning guide will work for MinCoin as well.
     
    Litecoin is a cryptocurrency that uses an alternative, memory hard hashing algorithm called scrypt that was devised by mathematics' prodigy Colin Percival. The algorithm utilizes SHA256 and a stream function called salsa20 to force devices that mine it to either use a lot of memory or use dramatically more ALU cycles to perform a hash.  With the parameters used in Litecoin's implementation of scrypt (N = 1024; p = 1; r = 1), each thread uses approximately 64-128 KB depending on the settings for lookup_gap and thread_concurrency in the mining program when mining with a GPU.  Because GPUs have such fast memory (bandwidth in the hundreds of GB/s) and roughly 128-512 KB of RAM per stream processor, they are ideal for mining Litecoin.  This requirement for fast memory in order to mine quickly results in Litecoin being FPGA and ASIC resistant; although ASICs may one day come out for Litecoin, they are not expected to garner the same performance increases as for Bitcoin (two orders of magnitude more efficient).

    Mining

    The major factor which impacts hash rate/hardware errors is the thread_concurrency.  The second most important factor for some cards is the ratio of core speed to memory speed.  Typically optimum values of thread_concurrency are a multiple of 64 and vary per card and per card family (see below).  The (core speed/memory speed) quotient should be 0.8 or less for 5xxx/6xxx cards and 0.7 or less for most 7xxx cards.  Some evidence suggests that different 7xxx cards may have different ideal core:memory clock ratios, too.

    GUIMiner-scrypt is out!  Comes with all settings in this thread and all miners.  No more command line interfaces!  Try it here.

    For all series cards,
    Install AMD APP SDK: http://developer.amd.com/tools/hc/AMDAPPSDK/downloads/Pages/default.aspx
    Install latest AMD drivers: http://support.amd.com/us/gpudownload/Pages/index.aspx
    or
    Use current recommend AMD driver (12.8):
    13.1 32-bit
    13.1 64-bit
    AVOID 12.10 DRIVERS, THEY SEEM TO BREAK LITECOIN PERFORMANCE. 13.X SEEM TO BE OKAY.

    5xxx series cards
    Use cgminer.
    Command line to run:
    Code: cgminer --scrypt -o http://yourpool.com:port -u username -p password --thread-concurrency ???? -I 18 -g 1 -w 256 You can use pretty much any thread_concurrency between 1536 and 8192 that is a multiple of 64. Some people recommend using 4 or 5 * the number of SPs.  You can find those in the table here: http://en.wikipedia.org/wiki/Evergreen_(GPU_family) (1st number in core config)

    Recommended thread concurrencies for
    57xx cards: 2368-4096 (3200 is common)
    58xx cards: 4096-8192 (5600, 7168, and 8000 are common)
    5970 card: 4096-8192 (5632 or 8000 are common)

    Typical 5xxx series performance: 0.255 kh/s/shader

    6xxx series cards
    Use cgminer.
    Command line to run:
    Code: cgminer --scrypt -o http://yourpool.com:port -u username -p password --thread-concurrency ???? -I 18 -g 1 -w 256 You can use pretty much any thread_concurrency between 1536 and 8192 that is a multiple of 64.  Some people recommend using 4 or 5 * the number of SPs.  You can find those in the table here: http://en.wikipedia.org/wiki/Northern_Islands_(GPU_family) (1st number in core config)

    Recommended thread concurrencies for
    67xx cards: 2368-4096 (3200 is common)
    68xx cards: 3008-6144 (4800 is common)
    69xx cards: 4096-8192 (5600, 7168, and 8000 are common)
    6990 card: 4096-8192 (5632 or 8000 are common)

    Typical 6xxx series performance: 0.313 kh/s/shader

    7xxx series cards
    Use reaper or cgminer versions 2.11.3 and up (see update below).  Set thread_concurrency to somewhere slightly below 64 * bus_width_of_card_in_bits.  So, for a 7950, that would be 64 * 384 = 24576; ideal values are 21712 or 24000.  Find your bus width here: http://en.wikipedia.org/wiki/Southern_Islands_(GPU_family)

    To find the optimum thread_concurrency for your card, you will need to search above and below this estimate ideal value and see what is fastest.

    If you'd like to use reaper, follow the steps below.

    Make reaper.conf the following:
    Code: kernel reaper.cl
    save_binaries yes
    enable_graceful_shutdown no
    long_polling yes
    platform 0
    device 0
    # device 1
    # device 2
    # device 3

    mine litecoin device ? must be added for every card you have to avoid using the CPU as well to mine.  Make sure when reaper starts that it states that the CPU platform is disabled.  CPU mining does not work correctly and may actually slow down GPU mining with reaper.

    Example configuration (550kh/s, 7950) of litecoin.conf:
    Code:
    port 8344
    user username
    pass password

    protocol litecoin

    worksize 256
    vectors 1
    aggression 20
    threads_per_gpu 1
    sharethreads 32
    lookup_gap 2
    gpu_thread_concurrency 21712 Save litecoin.conf and run reaper.exe.

    The 7xxx series can be tricky, for instance the 7770 seems to have an optimum thread concurrency of 8000 and works fine with cgminer and an intensity of 16 (I get 191kh/s with those settings).  The 79xx cards should be amenable to the configuration above and are the fastest possible cards you can mine with.

    Optimal thread concurrencies for 7xxx family:
    7770: 8000 (200 kh/s, aggression 19)
    7850: ????
    7870: 15360 (400 kh/s, aggression 19)
    7950: 21712 or 24000 (~575 kh/s)
    7970 (cgminer): 22392 (~700 kh/s can be obtained with a core/memory ratio of 0.57)
    7970 (reaper): 20992, 21712, or 24000 (~
    7750: ????
    7770: 8000 (200 kh/s, aggression 19)
    7850: ????
    7870: 15360 (400 kh/s, aggression 19)
    7950: 21712 or 24000 (~575 kh/s)
    7970 (cgminer): 22392 (~700 kh/s can be obtained with a core/memory ratio of 0.57) or 8192 (-g 2 -w 256 -I 13)
    7970 (reaper): 20992, 21712, or 24000 (~650 kh/s can be obtained with reaper and core/memory ratio of 0.57, e.g. 900 MHz core and 1580 MHz memory.  Over 725 KH/s can be achieved with memory overvolting.)

    Typical 7xxx series performance: 0.321 kh/s/shader

    If reaper crashes periodically on a single card, use the following python script to keep it alive (starts reaper, runs for two hours, shuts it down, then restarts it):
    Code: import os, subprocess, time

    while True:
          print("Starting reaper...")
          p = subprocess.Popen("C:\\Users\\my-pc\\Desktop\\reaper\\reaper.exe")
          time.sleep(7200)
          print("Terminating reaper...")
          p.terminate()
          time.sleep(10) This seems to fix the problem for my 3x 7950 rig.

    Update: 3-20-13
    cgminer versions 2.11.3 and up can be used to mine with high thread concurrencies now.  Follow these instructions:
    WINDOWS: Open console and type
    Code: setx GPU_MAX_ALLOC_PERCENT 100 Now, close the console (it will not work if you open cgminer in the same window).  Open cgminer using a .bat or a new console, high thread concurrencies will now work.

    LINUX: Open terminal and type
    Code: export GPU_MAX_ALLOC_PERCENT=100 Now high thread concurrencies should work in cgminer.

    TABLE OF USER REPORTED HASH RATES AND SETTINGS
    https://github.com/litecoin-project/litecoin/wiki/Mining-hardware-comparison

    CARD MEMORY SPEED SETTINGS
    Usually it is most effective to have the memory speed of the card equal to or greater than the core clock speed.  For some cards this is more important than others, but this is generally true.  From experimental data for a 7770, a (core speed)/(memory speed) ratio of 0.7 or less is recommended.

    HETEROGENEOUS MIXTURES OF CARDS
    CGMINER: Use a comma to separate thread-concurrency values, eg. --thread-concurrency 3200,8000.  Values correspond to the card number in zeroeth order.
    REAPER: Run multiple instances of reaper.  To do this, clone the folder and then add "device x" to reaper.conf, where x is the number for the card in zeroeth order.

    RAM REQUIREMENTS ON-MOTHERBOARD
    The equivalent amount of system RAM as for the sum of all the vRAM used by the GPUs is required when mining with reaper.  For instance, 3x 5970s mining with thread_concurrency values of 8000 each would require 3x 500MB = 1500MB system ram (plus additional RAM for the OS).  The memory requirements for 7xxx cards are also higher because of larger thread_concurrency values, for instance a thread_concurrency of 24000 means 1.5GB system RAM per card is required.

    THREADS PER GPU
    Some people state that increased hash rates are experienced upon increasing the number of threads per GPU in 5xxx series cards (-g # in cgminer or threads_per_gpu # in reaper).  That has not been my experience with 6xxx or 7xxx cards, but you can try it and see if it helps out your hash rate.

    STRATUM  MINING
    Supported by some pools (ltcmine.ru, notroll.in, coinotron.com) in order to reduce the number of stales.  Typical results moving from JSON getwork to stratum is a reduction in stales from 1.5% to 0.5%.  If you use reaper, you need to use a fork which is available here and a stratum proxy

    Run proxy program with this command for reaper:
    Code: mining_proxy.exe -pa scrypt --host yourpool.com --port #### Then run reaper with the following host:
    Code: 127.0.0.1:8332 and your normal user/password for the pool.

    SOLO MINING
    For large hash rates.  Go here: https://bitcointalk.org/index.php?topic=83371.0
    The guide works the same for unix as well more or less.
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