GRAPHENE - (GRP)
Specification
- ASIC-resistant : Scrypt Jane
- Proof-of-Work and Proof-of-Stake Mining
- Block time : 2.5 Min
- Block Reward : Start from 3000 GRP, Inversely proportional to the difficulty
- Difficulty : Adjustment every block.
- Adjustment algorithm : Logarithmic.
- Transaction Maturity : 4 Confirmations
- Block maturity : 200 blocks
- Total supply : 5 Bln GRP
- Coin age to Stake : 10 Days
- RPC Port : 5200
- Net Port : 5201
- Premine : 0.1%
Downloads - Password : UmTlLNN9GPOM4qPrvI1aKMjJg
- Windows - Password protected
- Ubuntu
- OS X
- Source
Proof-Of-Stake Info
Graphene utilizes Proof-of-Stake (POS) mining that generates more Graphene when you retain your coins for 10 days. When the coins from a
particular transaction become 30 days old, they will be used by your wallet to perform Proof-of-Stake mining that will generate new coins if you solve
the block. Just like a normal Proof-of-Work block, these POS blocks require 200 confirmations. Once the POS block has reached 200 confirmations,
your staked coins and the reward will be made available again in your wallet. These coins will then be required to age another 10 days before they can
be used in POS mining. The PoS is not very CPU intense and there's no need to set anything in order to mine PoS. It's done automatically.
It is important to note that when your coins are staked (reach 10 days of age and are used for a POS block), these coins will be owned by you but
unavailable to transfer until they are fully confirmed.
For those who want to exclude a certain amount of coins from Proof-of-Stake mining, you can run the client with the
-reservebalanceargument. This argument allows you to specify a certain amount of coins to withhold from using as a stake.
GRAPHENE PROOF-OF-STAKE GETTING STARTEDBy default, out-of-the-box, the wallet will submit coins for staking (refer to above for how this works). If you opt to encrypt your wallet (this is strongly advised) then staking will stop - as encrypting the wallet means no coins can be sent without entering a passphrase. If you opt not to encrypt your wallet (do so at your own risk) then staking will work fine, out of the box, with no extra configuration needed. There however is the ability in the Graphene wallet to "unlock" the wallet - keeping it encrypted and allowing coins to be staked.
"Unlocking" the wallet allows coins to be sent and received for the purpose of staking. Unlocking the wallet is not the same as decrypting the wallet - as the wallet passphrase must still be entered to send coins to another wallet (as per normal if you encrypt any cryptocoin wallet). Unlocking the wallet allows coins to stake whilst keeping your coins safe.
To unlock your wallet, enter this command in the Graphene-QT wallet client debug console located under help menu:
walletpassphrase thisismypassphrase 99999999
Replace "thisismypassphrase" with your encrypted wallet passphrase. This will unlock your Graphene wallet for staking for 1157 days (99999999 seconds = 1157 days). Upon restarting your client you will need to re-enter this command, as it is not saved.
By entering this command and having your wallet encrypted, you will be able to stake your coins whilst having a properly encrypted Graphene wallet.
Wallet Config
rpcuser=username
rpcpassword=password
rpcport=5200
rpcallowip=192.168.*.*
rpcallowip=127.0.0.1
server=1
daemon=1
listen=1
addnode=46.28.203.149
addnode=192.241.131.40
addnode=114.80.68.162
addnode=54.186.170.218
addnode=148.251.15.235
addnode=54.208.127.165
addnode=115.29.6.34
addnode=85.25.195.74
addnode=79.140.20.93
addnode=83.228.54.199
addnode=87.97.154.27
addnode=112.15.130.72
nFactor Retargets
N factor explanation:
N-Factor Seconds Since Launch Days at N-Factor Start Date Memory size
4 0-524287 6.07 Tue, 25 Mar 2014 10:47:24 GMT 8KB
5 524288-786431 3.04 Mon, 31 Mar 2014 12:25:32 GMT 16KB
6 786432-1048575 3.0 Thu, 03 Apr 2014 13:14:36 GMT 32KB
7 1048576-1835007 9.1 Sun, 06 Apr 2014 14:03:40 GMT 64KB
8 1835008-2097151 3.1 Tue, 15 Apr 2014 16:30:52 GMT 128KB
9 2097152-4194303 24.2 Fri, 18 Apr 2014 17:19:56 GMT 256KB
10 4194304-5242879 12.2 Mon, 12 May 2014 23:52:28 GMT 512KB
11 5242880-8388607 36.4 Sun, 25 May 2014 03:08:44 GMT 1MB
12 8388608-12582911 49 Mon, 30 Jun 2014 12:57:32 GMT 2MB
13 12582912-16777215 48 Mon, 18 Aug 2014 02:02:36 GMT 4MB
14 16777216-33554431 194 Sun, 05 Oct 2014 15:07:40 GMT 8MB
15 33554432-41943039 97 Fri, 17 Apr 2015 19:27:56 GMT 16MB
How to mine
To solo mine using the wallets, you can add
gen=1 to the graphene.conf file. You can also enable solo mining in a wallet by going into the debug console
and entering
setgenerate true or issuing that command via a RPC connection. Due to the coin's current difficulty, it is not suggested that you solo mine this coin
at this time. Instead you earn more coins by contributing your computer's hash power to a pool.
As this coin is uses the Scrypt-Jane algorithm, you will need to use a miner that supports it. When mining with scrypt-jane miners that do not have presets
for Graphene, you will need to use the following parameters:
nfMin = 4
nfMax = 30
nTimeStamp = 1395744444
Supported miners include:
CudaMinerCudaMiner is a miner developed and optimized for Nvidia cards that has built-in Graphene mining support.
Example CudaMiner command:
cudaminer32.exe --algo=scrypt-jane -o http://url:port/ -u <username> -p <password>
Windows Binaries can be found in the first post of the
CudaMiner topic. For those using Linux, you will need to compile from
source.
CGminerRobert Davidson has taken version 3.7.2 of the popular CGminer and patched it include support for scrypt-jane.
Example CGminer command:
cgminer.exe --scrypt-jane --sj-nfmin 4 --sj-nfmax 30 --sj-time 1395744444 -o http://url:port/ -u <username> -p <password>
You can download CGminer with Scrypt-Jane from the url:
https://sites.google.com/site/rmdavidson/.
The recommended Windows download is:
https://sites.google.com/site/rmdavidson/cgminer-3.7.2-sj-0.02.zip?attredirects=0For Linux users, you can compile from source using
these instructions.
Pools
Exchanges and trading
Block Explorers
Gambling and games
Merchants accepting GRP
Bounties
