Frequently Asked Questions


Emerald version v0.8.7.600-beta
  • scrypt - proof of work
  • 20 second block times
  • currently 0.25 EMD per block
  • 3 confirmations per transaction
  • 50 confirmations per mined block
  • difficulty adjusts each block with DGW3
  • ~32,000,000 total coins over time
  • post-mining phase starting after 2031
  • P2P Port - 12127
  • RPC Port - 12128
visit the EMD Faucet service of cryptoguru.tk
     http://cryptoguru.tk/Faucet/index.php?Currency=EMD
genesis block of Emerald was created on 2013-06-16 05:01:49

  block 0000000 - 3110399  -  block reward 5.00 EMD after 2.0 years
  block 3110400 - 3888000  -  block reward 2.50 EMD after 2.5 years
  block 3888001 - 4665600  -  block reward 1.00 EMD after 3.0 years
  block 4665601 - 5443200  -  block reward 0.50 EMD after 3.5 years
  block 5443201 - 6220800  -  block reward 0.25 EMD after 4.0 years


download the wallet emerald-qt.exe and put it in a new directory named c:\emerald
after the first start of emerald-qt stop the wallet by File/Quit and edit the emerald.conf file located in %APPDATA%\Emerald
  rpcuser=choose_a_username
  rpcpassword=choose_a_password
  rpcconnect=127.0.0.1
  rpcport=12128
  port=12127
  rpcallowip=*
  server=1
  daemon=1
  listen=1
  addnode=108.61.10.90
  addnode=82.200.205.30
  addnode=65.102.140.116
  addnode=105.103.136.130
  addnode=46.252.49.204
  addnode=151.80.97.28
  addnode=176.50.170.49
  addnode=46.105.63.132
  addnode=46.254.11.158
  • download the latest blockchain snapshot

  • unzip the file in your emerald directory (windows: %APPDATA%\Emerald)
    you will see the file bootstrap.dat

  • start emerald-qt.exe

  • now the Emerald Wallet should import the blockchain from your local harddrive

MD5SUM checksum of bootstrap.dat files
2b2544f153d8c1e5aad2e89cf610e2aa  20160903_4322833_EMD_bootstrap.zip
ed2f6937f06e495efa3df0d8df0e5d10  20170319_5128638_EMD_bootstrap.zip
17c77ce439576b180065c9f718bc62a6  20170420_5255591_EMD_bootstrap.zip
1b63481946e9a7f9a1a9478c80646976  20170607_5449211_EMD_bootstrap.zip
330a00d4825b90c06ff61707cbc71031  20171018_5983044_EMD_bootstrap.zip
b782b291a4d6821259c7cec216f97d1d  20171209_6194153_EMD_bootstrap.zip

important
please be patient, it could take some time to import all the blocks
launch your Emerald Wallet as usual
wait for it to load the blockchain and start up

  • click on ‘help’ in the menu bar (top right)

  • click on ‘debug window’

  • select the ‘console’ tab

  • type: listaccounts
    you will get your accounts, typically "": <amount of EMD>

  • type: getaddressesbyaccount <your accountname> (typically "")
    you will get your public key (public address)

  • type: dumpprivkey <your public key>
    you will get your private key

save both, public and private key, on a file and print them on paper.
store this paper on a safe place.
you can restore your Emerald wallet using your private key on every new wallet and new computer.

keep your private key for yourself. Otherwise you can lose your Emerald amount


install a linux system. Debian or Ubuntu are recommended
on a xterm session enter
  apt-get install git build-essential libssl-dev libdb5.3-dev libdb5.3++-dev libboost-all-dev libqrencode-dev libminiupnpc-dev miniupnpc
  (on debian 7: apt-get install libdb5.1-dev libdb5.1++-dev)
  cd /opt
  git clone https://github.com/crypto-currency/Emerald
  cd emerald/src
  mkdir obj
  make -f makefile.unix
  ./emeraldd -? | grep version

after the first start of Emerald stop the wallet by entering ./emeraldd stop and edit the .emerald/emerald.conf file
  rpcuser=choose_a_username
  rpcpassword=choose_a_password
  rpcconnect=127.0.0.1
  rpcport=12128
  port=12127
  rpcallowip=*
  server=1
  daemon=1
  listen=1
  addnode=108.61.10.90
  addnode=82.200.205.30
  addnode=65.102.140.116
  addnode=105.103.136.130
  addnode=46.252.49.204
  addnode=151.80.97.28
  addnode=176.50.170.49
  addnode=46.105.63.132
  addnode=46.254.11.158
please check the blockchain height of your EMD client.
if the block height differs from the value of 6202574 blocks you must:
  • shutdown your client
  • edit your emerald.conf by adding
    connect=65.102.140.116:12127
    connect=108.61.10.90:12127
    connect=98.115.147.74:12127
    connect=82.200.205.30:12127
    connect=46.252.49.204:12127
    connect=176.50.170.49:12127
  • change temporary the peer2peer port by adding port=12129
  • remove all blk*.dat files
  • remove the peers.dat file
  • remove the database folder
  • restart your client and let resync starts
  • check your peers info to see the "Satoshi: 0.8.6.1" or "Emerald:V0.8.7.600" protocol

after sucessfull synchronisation
  • restore the peer2peer port by adding port=12127

hint - if you want to accelerate the sync you can download the blockchain snapshot
  for setting up an EMD node on Ubuntu you can use the Dockerfiles provided for
  
    an V0.8.6.1 EMD Node  
      https://github.com/wetrust/EmeraldCryptoCoin
    
    an V0.8.7.600 EMD Node
      https://github.com/pazor/EmeraldCryptoCoin/tree/patch-1
  • download the Emerald wallet from this site
  • start it and get your Emerald address
  • download the cpu miner for scrypt coins
         https://sourceforge.net/projects/cpuminer/files/
  • unpack the zip file
  • start the miner
         ./minerd -t <threads> -a scrypt -o stratum+tcp://crypto.office-on-the.net:12125 -u <your Emerald address> -p x
  • check your Emerald income on
         https://chainz.cryptoid.info/emd/
    by entering your Emerald address
related to Version 0.8.6.1
to avoid memory allocation errors of Berkeley DB add to your .emerald directory a file named DB_CONFIG containing the statement mutex_set_max 100000
  echo "mutex_set_max 100000" >> ~/.emerald/DB_CONFIG