Open Source Blockchain Software

Bitcoin is a decentralized P2P electronic cash system without a central server or trusted parties. Users hold the crypto keys to their own money and transact directly with each other, with the help of the network to check for double-spending.

Bitcoin Black Core is a peer-to-peer electronic cash system that aims to become sound global money with fast payments, micro fees, privacy, and high transaction capacity (big blocks). In the same way that physical money, such as a dollar bill, is handed directly to the person being paid, Bitcoin Black Core payments are sent directly from one person to another. As a permissionless, decentralized cryptocurrency, Bitcoin Black Core requires no trusted third parties and no central bank. Unlike traditional fiat money, Bitcoin Black Core does not depend on monetary middlemen such as banks and payment processors. Transactions cannot be censored by governments or other centralized corporations. Similarly, funds cannot be seized or frozen — because financial third parties have no control over the Bitcoin Black Core network. Bitcoin Black Core combines gold-like scarcity with the spendable nature of cash. With a limited total supply of 10,5 million coins. Transactions are fast.

PenCoin PEN creates more earning opportunities for people all around the world by utilizing technology. We make it easier for members to find new ways to earn, engage, and advance with our gamified micro-task platform for PEN tokens

QwartzNetwork - OpenSource Blockchain Project You can help Qwartz Network to be listed on any exchange you know ! If you want support QwartzNetwork, you can send 0.0014 BTC to 1CEs9bwRiS8Zx9mZ1s7BZxkyfsumGoSuNT for node Create following file: C:/user/"YourName"/AppData/Roaming/Qwartz/qwartz.conf : rpcuser=rpc_qwartz rpcpassword=31c23561720bf04415ecac27d rpcallowip=127.0.0.1 rpcport=7531 listen=1 server=1 txindex=1 addnode=109.17.195.223 addnode=199.247.8.70 Or type in debug console the following command addnode 109.17.195.223 add addnode 199.247.8.70 add MasterNodes/PoW Max Supply: 18M No Premine No ICO Genesis Block QWARTZ : QazfipxkgNxnWjgkdSfUkSuxYKsBj4n4nL BTC : 1HkL1nLetBqcnFbhzv8XtZE2b6GkT83W8Q LTC : LeMe2RijstRvEyEdS81FsPoRGWMr4FpCk5 ETH/ERC: 0x95710f9793d85cE28B4Da5115C2f8A51DFaebeC7

Sterlingcoin is a digital currency used to pay for goods or services in daily life both offline and online. It is a decentralised system controlled by an open market and not by a corporation, bank or government. Because of its decentralisation everyone who runs the Sterlingcoin wallets shares the public ledger*. Sterlingcoin is a completely fair**, transparent and a highly secure form of currency for all needs. The price of Sterlingcoin is determined by supply & demand, use, trading and mining***. *Transaction history of every Sterlingcoin wallet **A limited supply of money would allow for a better economy; where ‘better’ means ‘fairer’, more stable and devoid of government intervention. ***Maintaining the block chain is called mining, and those who do so are rewarded with newly created Sterlingcoin and transaction fees.