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Blakecoin (BLC) Blake-256 alternative cryptocoin
17, Feb 2014
Blakecoin is a experimental cryptographic digital currency that enables payments to anyone, anywhere in the world. Blakecoin uses peer-to-peer technology to operate with no central authority: managing transactions and issuing coins are carried out collectively by the network.
Blakecoin (BLC) uses Blake-256 (optimized) faster than Scrypt, SHA-256D and Keccak algorithm and thus provides much faster hashrate from the same hardware as compared to the other alternatives. The algorithm was written as a candidate for SHA-3, based on round one candidate code from the Sphlib 2.1 library and reduced the round function to 8 rounds. BLC can currently be mined with both CPU, GPU and FPGA, though GPU mining is the best option at the moment for AMD graphics card owners. Blakecoin (BLC) requires a special miner software!
The Blake-256 algorithm hash rate is just under 3x faster on the GPU and just over 2x on the FPGA compared with Bitcoin. So for example with a Radeon R9 280X you can expect to get a hashrate of about 2-2.5 GH/s or more when mining Blackecoin. The reward for mining Blakecoin does Not decrease over time it only increases with block height and difficulty. Block reward is 25 coin + inflation (square root of (difficulty * block height)) and the total of 7 Billion coins will be mined.
Website
– http://www.blakecoin.org/
Block Explorer / Crawler
– http://blc.cryptocoinexplorer.com/
SPECIFICATIONS
- Blake-256 (optimized) Algo, faster than Scrypt and SHA-256D
- Block reward is 25 coin + inflation (square root of (difficulty * block height))
- No reduction of block reward
- Cap in place to reduce the difficulty jumps upwards
- Block target time is 3 minutes and retargets every 20 blocks
- Total of 7 Billion coins
- Block maturity 120 (+20 buffer 140 Total)
DOWNLOADS
– Windows
– Linux
– Mac
Blake-256 Algorithm GPU miners:
– Cgminer 3.7.2 with Blake-256 support for AMD
– Cgminer 3.1.1 with Blake-256 support for AMD
– CudaMiner with Blake-256 support for Nvidia
– ccMiner with Blake-256 support for Nvidia
Source Code
– at GitHub
PORTS
- RPC Port: 8772
POOLS
– http://cg1.blakecoin.com/
– http://eu3.blakecoin.com/
– http://ny2.blakecoin.com/
– http://la1.blakecoin.com/
EXCHANGES
– Atomic Trade
Vertcoin (VTC) mining with GPU requires a special miner called vertminer that is essentially a modified version of cgminer 3.7.2. The latest version of verminer 0.5.3 is designed to be used for mining VTC on AMD-based graphic processors. Note that the hashrate you will get by mining VertCoin with this modified mining client will be lower than what you get wen mining traditional scrypt based crypto coins. VertCoin (VTC) uses Scrypt-Adaptive-Nfactor algorithm and not just the standard scrypt algorithm that makes it ASIC proof and harder to mine, but also making it another very interesting alternative to most other alt crypto currencies that are essentially cloning BTC or LTC by using either SHA-256 or Scrypt algorithm. What is important to know is that you will not be able to mine VertCoin (VTC) with the standard cgminer, you need to use this modified version. Below you can find a download link to the latest vertminer 0.5.3 for windows.
– You can download vertminer 0.5.3 for VertCoin Mining for Windows OS here…
If you are using Bitmain AntMiner U1 USB Bitcoin ASIC miners there is something important that you should be well aware of in order to get the maximum performance and ensure optimal stability on the long run for these devices. Obviously we are going to be talking about power consumption and usage of these small ASIC miners that are designed to be powered by USB. The manufacturer has rated them at 2 watt power consumption from the USB port with a hasrate of 1.6 GH/s and tha is leaving you about 0.5W headroom for overclocking before reaching the maximum power that a normal USB 2.0 port can provide you with. But we decided to check if the Bitmain rating is rally true and to see for ourselves what is the actual power consumption of the AntiMiner U1 devices. As you can see on the photo above the power usage of the U1 miner is just 0.086A at 5V or a total of 0.43 watts is what you get with the device connected to a PC, but with no mining software running.
As soon as you fire up cgminer or another compatible mining software and the AntMiner U1 starts working at 1.6 GH/s the power consumption increases significantly that what you get in idle mode. At first we’ve measured 0.385A current used or about 1.925 watts – a bit below the manufacturer’s rating, however this is the power usage while the device is still cool. Just a few minutes later since everything gets hotter (thermal images) after the AntMiner U1 starts operating and the power usage increases along with the temperature of the chips. In just about 10 minutes after starting to mine with the device the current usage increases to 0.405A or a total of 2.025W of power, something that does not seem that much higher at first, but as you start to overclock the device you will notice that the gap between a well cooled AntMiner U1 and a very hot miner increases. The problem is that the higher power consumption leads to more heat and can also result in less performance when overclocking.
Here are the results we’ve got as a power consumption of the AntMiner U1 device connected on a USB 2.0 port. Have in mind that USB 2.0 ports have a standard limit on maximum current they can provide to a connected device of 0.5A or 2.5W in total and this can lead to lower performance you can get when overclocking as you might be hitting the interface power limit and not the device’s:
1.6 GH/s – 0.405A
1.8 GH/s – 0.456A
2.0 GH/s – 0.505A
2.2 GH/s – ~~~~~~
We have moved the AntMiner U1 to a USB port to contnue with our overclocking experiments. Have in mind that USB 3.0 ports have an increased limit of the current they can supply to a device of 0.9A at 5V or 4.5W of power, so we could continue to overclock the USB ASIC further:
2.2 GH/s – 0.568A
2.4 GH/s – 0.633A
2.6 GH/s – 0.701A
2.8 GH/s – ~~~~~~
As you can see from the results above hitting 2.2 GH/s on a USB 2.0 port was not possible as we were hitting the limit of the power the interface can provide already at 2 GH/s. Moving to USB 3.0 we could squeeze up to 2.6 GH/s by increasing the operating frequency of the device and having more power available to use from the USB port. Have in mind that overclocking the device requires an adequate cooling to be provided, so you need to be prepared for that before starting to go past the “stock” 1.6 GH/s hashrate. As you can see from our results the maximum we could get was below the maximum power the USB 3.0 interface can provide, the reason for that is that for higher performance you would also have to increase the voltage that the processor of the device operates at (default 0.8V) in order for it to continue working fine at a higher frequency. This can be done by replacing two resistors on the device and the procedure is described in the AntMiner U1 manual. Have in mind though that increasing the voltage can damage the device, so do have in mind should you decide to go for a hardware modification for even higher performance. Increasing the voltage will also seriously increase the power consumption and will require even better cooling in order not to overheat the miner!
– To download the Bitmain AntMiner U1 manual for additional details about overclocking…