[ANN][GAP] Gapcoin - Prime Gap Search - New Math Algo - CPU / GPU - Zero Premine

[j0nn9]

Website: gapcoin.org
Twitter: Gapcoin
Reddit: http://www.reddit.com/r/gapcoin


Block explorer:

• https://bchain.info/GAP/
• http://coinia.net/gapcoin/blockexplorer.php
• http://www.multifaucet.tk/index.php?blockexplorer=GAP

Statistics: http://coinia.net/gapcoin/stat.php

Chat: http://coinia.net/gapcoin/chat/

CPU Cloud Mining Guide: http://gapcoin.grn.cc

Gapcoin faucet:

• http://coinia.net/gapcoin/faucet.php
• https://bchain.info/GAP/faucet
• http://multifaucet.tk/index.php?faucet=GAP

Exchanges:

• https://askcoin.net/trading/GAP/BTC
• https://poloniex.com/exchange/btc_gap
• https://lazycoins.com/trade#gap-btc
• https://coin-swap.net/market/GAP/BTC

Bounties:

• 1000 GAP for working cuda miner binaries + source code
• 500 GAP for the second running pool
• 100 GAP for the first merit within the top 20 (found by Un3eal)
• 1000 GAP for the first merit within the top 10
• 1500 GAP for the first merit within the top 5
• 8000 GAP for the first merit, which breaks the world record

If you want to increase these bounties, there exists a Gapcoin address for each:

• working cuda miner binaries + source code   Gc2iV35VSshiQtbQGbDKrXjiZb6qvNATqW
• second running pool   GdRFensrnTCzkoFMX89pLZpwxAawCsoUnN
• first merit within the top 10   GQaFxaTrNHoCbcMSuY8HRVgaYyJC4DmiYr
• first merit within the top 5   GaQvMjybeLEN2waSMSPskKvtE1vBheB1is
• first merit, which breaks the world record   GQE3hMaBz1uCCMATzXGfYK13A8PjqxKxz6

Once the requirement for a bounty is fulfilled, the among of the respective address will be credit to the finder / developer.


Highest found merits (Top 30 Gapcoin): http://gapcoin.org/primegaps.php
Top-20 merits world record list: http://primerecords.dk/primegaps/gaps20.htm
Top-20 Prime Gaps for all merits: http://primerecords.dk/primegaps/gaps20all.htm

Gapcoin broke records of 544 first known occurrence prime gaps:

http://www.trnicely.net/gaps/g4k.html
http://www.trnicely.net/gaps/g6k.html



Specifications:

• PoW: custom, prime gaps
• Block target time 2.5 minutes
• Block reward proportional to the current difficulty
• Block reward halving every 420000 (about 2 years)
• Cap: about 10 - 30 million GAP
• Difficulty adjusts every block and increases logarithmic (it will probably take years to get to 50)

Fair launch:

• Gapcoin was not designed to enrich the early adopters or the coin creators! The more people mine Gapcoin, the more coins per block will be produced. (Coin supply will increase logarithmic with the difficulty, this means it will grow in the beginning, but later, it won't change much.)
• There won't be any premine!
• To avoid instamine, the reward of the first 1152 blocks (about 48 hours) will increase quadratically to its absolute value: the current difficulty. Block reward will be 1/1152^2 * blockheight^2 * difficulty for the first 1152 blocks. This should guarantee that the difficulty is stable until the blocks yield a worthwhile amount of coins.
• Source code will be available before launch (excluding the PoW function), so everyone can setup their own environment, compile the software, and check if everything works.
• Windows and Linux binaries will be distributed in an encrypted container before launch, the password will be revealed at launch.

Launch date: Tue Oct 21 2014 - 18:00 UTC


Wallet:

Windows: https://github.com/gapcoin/gapcoin/releases/download/v0.9.2-rev2/gapcoin-rev2-windows.zip
md5: f476544e2b34133d829d585e6b9d3f7a

Linux: https://github.com/gapcoin/gapcoin/releases/download/v0.9.2-rev2/gapcoin-rev2-linux.zip
md5: 50551e97df7cdfd672a66ebf059cee20

Source code: https://github.com/gapcoin/gapcoin

Build instructions for Gapcoin Core: https://github.com/gapcoin/gapcoin/blob/v0.9.2-gap/doc/build-unix.md



Latest GapMiner (CPU/GPU) Release

Windows: https://github.com/gapcoin/GapMiner/releases/download/gapminer-rev4.1/windows.zip
md5: 140c6b00811bd6474582f360956b4daa

Linux: https://github.com/gapcoin/GapMiner/releases/download/gapminer-rev4/linux.zip
md5: 71cc3cb94265adf5b4f583b05c704c06

Source Code: https://github.com/gapcoin/GapMiner (branch gpu-miner)


Improved GPU-Miner (experimental):

Windows: https://github.com/gapcoin/GapMiner/releases/download/gpu-miner-rev3/windows.zip
md5: 6e0fa4a4331c3758bec1fc74334aa753

Linux: https://github.com/gapcoin/GapMiner/releases/download/gpu-miner-rev3/linux.zip
md5: 85bb6f69b22de5e51388155e7b532195

Source Code: https://github.com/gapcoin/GapMiner (branch gpu-miner)

Old GPU-Miner:
Windows: https://github.com/gapcoin/GapMiner/releases/download/gpu-miner-rev2/windows.zip
Linux: https://github.com/gapcoin/GapMiner/releases/download/gpu-miner-rev2/linux.zip



Modded CPU-Miner (by dcct, about 10x faster than old version):

Windows: https://github.com/gapcoin/GapMiner/releases/download/dcct-mod/windows.zip
md5: d8b7f82ef2e325f7feff1b2630e21849

Linux: https://github.com/gapcoin/GapMiner/releases/download/dcct-mod/linux.zip
md5: 15999a95ed79174c83c92827884ee8b6

Source Code: https://bchain.info/gapminer_dcct_mod.zip



RPC-Pool-Miner (source code): https://github.com/gapcoin/GapMiner

RPC-Pool-Miner (Linux binaries): https://github.com/gapcoin/GapMiner/releases/download/rev3/gapminer-linux-rev3.zip
md5: 3b79f2b3f6b74bee04ad267b4f595b40

RPC-Pool-Miner (Windows binaries): https://github.com/gapcoin/GapMiner/releases/download/rev3/gapminer-windows-rev3.zip
md5: e406f2c94b00a7abf84e9e5b696ffa47






Pool: http://gap.nonce-pool.com

Pool-Miner: You can use one of the miner above.

Python hash module for pool operators: https://github.com/noncepool/gapcoin-hash-python


RPC port: 31397
P2P port: 31469

Gapcoin should automatically connect to the network,
but if you get problems, you can add these nodes to your gapcoin.conf file:

Code:

addnode=212.227.143.155
addnode=104.131.69.82
addnode=95.215.44.9
addnode=155.254.36.179
addnode=199.127.226.192

Miscellaneous:

Block explorer API: http://coinia.net/gapcoin/getbalance.php?api=help

Mining hardware comparison (outdated): http://gapcoin.org/hardware-comparison.php



New RPC calls:

Code:

listbestprimes amount (min merit)

Returns a sorted list of the best prime gap merits.

Arguments:
1. amount        (numeric). number of prime gaps to display
2. merit         (numeric, default = 16). minimum merit to display

Code:

listprimerecords merit

Returns a list of all prime gaps with the given integer merit.

Arguments:
1. merit        (numeric 1,2,3..) the prime gap merit.

Note: The above rpc-calls can take a long time to respond.

Logos (new):

http://gapcoin.org/logos/gapcoin_header.jpg
http://gapcoin.org/logos/new-logos.jpg

Logos (old):

http://gapcoin.org/logos/Logo.png
http://gapcoin.org/logos/qt-test-net.png
http://gapcoin.org/logos/qt-main-net.png
http://gapcoin.org/logos/qt-green-big.png
http://gapcoin.org/logos/twitter-white-black.png
http://gapcoin.org/logos/twitter-white-shadow1.png
http://gapcoin.org/logos/twitter-white-shadow2.png
http://gapcoin.org/logos/twitter-white-shadow3.png
http://gapcoin.org/logos/twitter-green-more-black.png
http://gapcoin.org/logos/twitter-lila.png
http://gapcoin.org/logos/twitter-green-smal.png
http://gapcoin.org/logos/twitter-green.png

The background of the Logos shows a sector from an image of the prime number distribution.
Every colored pixel represents a prime number. The original image is 2310 pixel width.

[SecondsOld]

What's the significance of the pi logo?

[tlackyang]

algo?

[j0nn9]

What's the significance of the pi logo?

The formula π(x) is known as the prime-counting function, which graph shows the prime gap distribution as well.

algo?

searching for large prime gaps

[cbuchner1]

algo?

a novel one, apparently. You can't use any existing miners.

[GreekBitcoin]

This is in development for some months now if i am correct. Nice to see it is going to finally launch.

One question though. You say that you are going to give source and binaries 2 days before launch. So what stops someone to start the coin? Ok i read what i should have read

P.S. You should probably start already thinking about pools since after a few days casual miners wont be able to mine anything.

[j0nn9]

This is in development for some months now if i am correct. Nice to see it is going to finally launch.

One question though. You say that you are going to give source and binaries 2 days before launch. So what stops someone to start the coin?

Yes pre announcement thread was here: https://bitcointalk.org/index.php?topic=647681

Binaries will be distributed in an encrypted container, the password will be revealed at launch.

The source code will not contain the neccesary Proof of Work functionality, its only to set up and test compile environment.

[majeis]

This is in development for some months now if i am correct. Nice to see it is going to finally launch.

One question though. You say that you are going to give source and binaries 2 days before launch. So what stops someone to start the coin?

Yes pre announcement thread was here: https://bitcointalk.org/index.php?topic=647681

Binaries will be distributed in an encrypted container, the password will be revealed at launch.

The source code will not contain the neccesary Proof of Work functionality, its only to set up and test compile environment.

What's the use of this new thread if everything's been explained in the other one already?

[j0nn9]

What's the use of this new thread if everything's been explained in the other one already?

New attention 

[Nthused]

This might close the GAP on rival Altcoins lol

[Atomicat]

What's the significance of the pi logo?

The formula π(x) is known as the prime-counting function, which graph shows the prime gap distribution as well.

algo?

searching for large prime gaps

Have you though this through?

If we solve Riemann we're going to break the internet.

No more porn.

Have you thought this through!?!

[devrilz]

i didnt find algorithm for this coin...whats the algo?

[j0nn9]

Source code and wallets are online 

Windows Wallet: https://mega.co.nz/#!YhYkjSbD!lM2hZPTjAjwjPA9XXQTQxFLZOX0nkuCdYi3O0MebAis
md5: 2fb8963b7c490a6328a3183db8155e67

Linux Wallet: https://mega.co.nz/#!FkAViaYL!AFrEJ_L1_-27Pi4Yyrezmg5loG5uHZ8L1HvCaSiLgF4
md5: 683977a151e26921f48d8a1d4264daf5

Source code: https://github.com/gapcoin/gapcoin

RPC-Miner (source code): https://github.com/gapcoin/GapMiner



Build instructions for Gapcoin Core: https://github.com/gapcoin/gapcoin/blob/v0.9.2-gap/doc/build-unix.md

Disclaimer: The RPC-Miner currently has no speed improvement in comparison to Gapcoin Core!

[BanditryAndLoot]

after make all:

Code:

g++ -Wall -Wextra -c -Winline -Wformat -Wformat-security -pthread --param max-inline-insns-single=1000 -lm -Wno-write-strings -march=native -O2  src/PoWCore/src/PoW.cpp -o src/PoWCore/src/PoW.o
src/PoWCore/src/PoW.cpp:28:17: fatal error: gmp.h: No such file or directory
 #include <gmp.h>
                 ^
compilation terminated.
make: *** [src/PoWCore/src/PoW.o] Error 1

 

[j0nn9]

after make all:

Code:

g++ -Wall -Wextra -c -Winline -Wformat -Wformat-security -pthread --param max-inline-insns-single=1000 -lm -Wno-write-strings -march=native -O2  src/PoWCore/src/PoW.cpp -o src/PoWCore/src/PoW.o
src/PoWCore/src/PoW.cpp:28:17: fatal error: gmp.h: No such file or directory
 #include <gmp.h>
                 ^
compilation terminated.
make: *** [src/PoWCore/src/PoW.o] Error 1

 

You have to install gmp and mpfr libraries:

https://gmplib.org/
http://www.mpfr.org/

on Ubuntu:

Code:

sudo apt-get install libgmp-dev libmpfr-dev

[BanditryAndLoot]

Code:

sudo apt-get install libgmp-dev libmpfr-dev

That worked great! TY!

I know not wat i do though

Wat do I do after that?

Counting down to your launch though!

Also: "The source code will not contain the neccesary Proof of Work functionality, its only to set up and test compile environment."

-You gonna push this on launch? Or just binaries?

Have you contacted pool operators/worked with pool code so that this is a possibility at launch?

Have you worked with GPU miner devs to develop a GPU algo for your PoW code?

Also, when I'm more sober, gonna check out your website so I can learn wats different from riecoin/primecoin

[j0nn9]

Wat do I do after that?

Counting down to your launch though!

If you compiled everything successfully, that's it for now.
Just wait for the launch. 

Also: "The source code will not contain the neccesary Proof of Work functionality, its only to set up and test compile environment."

-You gonna push this on launch? Or just binaries?

Yes, the entire source code will be published at launch.

Have you contacted pool operators/worked with pool code so that this is a possibility at launch?

Have you worked with GPU miner devs to develop a GPU algo for your PoW code?

This is in progress, but probably we won't have a pool right at the start.

Also Gapcoin is currently CPU only.

[zhorzh]

Hi!

I get error while configure:

configure: error: libmpfr headers missing

although libmpfr is installed:

ls -l | grep libmpf
lrwxrwxrwx  1 root root       16 мap 31  2013 libmpfr.so.4 -> libmpfr.so.4.1.1
-rwxr-xr-x  1 root root   377240 янв 25  2013 libmpfr.so.4.1.1

System OpenSuSe 12.3

[LuckyBtc]

Will i be able to mine this coin from wallet itself or i must use the mining software??

[Jacksp]

What is more profitable, solo mining or RPC mining?