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zdOSchain.py/README.md

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+Simple Python Blockchain with MINING!
+=====================================
+
+Kalinet OS-dapp
+
+*https://github.com/madkali
+
+zdOS lab's was born from the passion of getting by and the ethereum ecosystem. The main purpose of zdOS is to be able to create the first "operating system-dapp" by merging collapse OS and Crypto-zombie dapp and my zdOS token. the idea of ​​this structure is to bring people to an educational purpose and a free computer system. zdOS has one and only founder and one employee and this will make creation a little faster. I ask you interested to contact me and zdOS and predisposed to the collaboration of all of you
+
+Collapse OS is a z80 kernel and a collection of programs, tools and documentation that allows you to assemble an OS that, when completed, will be able to:
+
+    Run on minimal and improvised machines.
+    Interface through improvised means (serial, keyboard, display).
+    Edit text files.
+    Compile assembler source files for a wide range of MCUs and CPUs.
+    Read and write from a wide range of storage devices.
+    Replicate itself.
+
+Additionally, the goal of this project is to be as self-contained as possible. With a copy of this project, a capable and creative person should be able to manage to build and install Collapse OS without external resources (i.e. internet) on a machine of her design, built from scavenged parts with low-tech tools.
+Organisation of this repository
+
+    kernel: Pieces of code to be assembled by the user into a kernel.
+    apps: Pieces of code to be assembled into "userspace" application.
+    recipes: collection of recipes that assemble parts together on a specific machine.
+    doc: User guide for when you've successfully installed Collapse OS.
+    tools: Tools for working with Collapse OS from "modern" environments. Mostly development tools, but also contains emulated zasm, which is necessary to build Collapse OS from a non-Collapse OS machine.
+
+Each folder has a README with more details.
+Status
+
+The project unfinished but is progressing well! See [Collapse OS' website][web] for more information.
+
+---- 19-3-20 update Kalinet ---- zdOS = wallet cita blockchain Collapse-dapp #work in progress#
+
+---- 29-3-20 update road-map ---- zdOS = airdrop kalinet by zdOS token -link's for free zdOS token and server Kalinet OS This project was born 5 years ago. I was able to go beyond my skills starting from improvised compuert and a very low programming capacity and despite the work and the little time I decided to give zdOS tokens that with your help as it is an open-source project to participate in evolving this reality by contributing not with money but it goes by following the referral links affiliate marketing server and mining and with a follow me in github
+
+---- 30-3-20 kalinet is started ----
+
+    https://www.stateofthedapps.com/dapps/zdos-dapp
+
+---- 31-3-20 bitmine ----
+
+    https://bitmine.farm/?i=109507&

zdOSchain.py/blockchain.py

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+import datetime
+import hashlib
+
+class Block:
+    blockNo = 0
+    data = None
+    next = None
+    hash = None
+    nonce = 0
+    previous_hash = 0x0
+    timestamp = datetime.datetime.now()
+
+    def __init__(self, data):
+        self.data = data
+
+    def hash(self):
+        h = hashlib.sha256()
+        h.update(
+        str(self.nonce).encode('utf-8') +
+        str(self.data).encode('utf-8') +
+        str(self.previous_hash).encode('utf-8') +
+        str(self.timestamp).encode('utf-8') +
+        str(self.blockNo).encode('utf-8')
+        )
+        return h.hexdigest()
+
+    def __str__(self):
+        return "Block Hash: " + str(self.hash()) + "\nBlockNo: " + str(self.blockNo) + "\nBlock Data: " + str(self.data) + "\nHashes: " + str(self.nonce) + "\n--------------"
+
+
+# noinspection PyInterpreter
+class Blockchain:
+
+    diff = 0
+    maxNonce = 2**32
+    target = 2 ** (256-diff)
+
+    block = Block("Genesis")
+    head = block
+
+    def add(self, block):
+
+        block.previous_hash = self.block.hash()
+        block.blockNo = self.block.blockNo + 1
+
+        self.block.next = block
+        self.block = self.block.next
+
+    def mine(self, block):
+        for n in range(self.maxNonce):
+            if int(block.hash(), 16) <= self.target:
+                self.add(block)
+                print(block)
+                break
+            else:
+                block.nonce += 1
+
+blockchain = Blockchain()
+
+for n in range(10):
+    blockchain.mine(Block("Block " + str(n+1)))
+
+while blockchain.head != None:
+    print(blockchain.head)
+    blockchain.head = blockchain.head.next

zdOSchain.py/zdOStoken.py

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+pragma solidity ^0.5.0;
+
+// ----------------------------------------------------------------------------
+// ERC Token Standard #20 Interface
+//
+// ----------------------------------------------------------------------------
+contract ERC20Interface {
+    function totalSupply() public view returns (uint);
+    function balanceOf(address tokenOwner) public view returns (uint balance);
+    function allowance(address tokenOwner, address spender) public view returns (uint remaining);
+    function transfer(address to, uint tokens) public returns (bool success);
+    function approve(address spender, uint tokens) public returns (bool success);
+    function transferFrom(address from, address to, uint tokens) public returns (bool success);
+
+    event Transfer(address indexed from, address indexed to, uint tokens);
+    event Approval(address indexed tokenOwner, address indexed spender, uint tokens);
+}
+
+// ----------------------------------------------------------------------------
+// Safe Math Library
+// ----------------------------------------------------------------------------
+contract SafeMath {
+    function safeAdd(uint a, uint b) public pure returns (uint c) {
+        c = a + b;
+        require(c >= a);
+    }
+    function safeSub(uint a, uint b) public pure returns (uint c) {
+        require(b <= a); c = a - b; } function safeMul(uint a, uint b) public pure returns (uint c) { c = a * b; require(a == 0 || c / a == b); } function safeDiv(uint a, uint b) public pure returns (uint c) { require(b > 0);
+        c = a / b;
+    }
+}
+
+
+contract BlockonomiToken is ERC20Interface, SafeMath {
+    string public name;
+    string public symbol;
+    uint8 public decimals; // 18 decimals is the strongly suggested default, avoid changing it
+
+    uint256 public _totalSupply;
+
+    mapping(address => uint) balances;
+    mapping(address => mapping(address => uint)) allowed;
+
+    /**
+     * Constrctor function
+     *
+     * Initializes contract with initial supply tokens to the creator of the contract
+     */
+    constructor() public {
+        name = "zdOS";
+        symbol = "DNS";
+        decimals = 18;
+        _totalSupply = 9999999999999999999999999913;
+
+        balances[msg.sender] = _totalSupply;
+        emit Transfer(address(0), msg.sender, _totalSupply);
+    }
+
+    function totalSupply() public view returns (uint) {
+        return _totalSupply  - balances[address(0)];
+    }
+
+    function balanceOf(address tokenOwner) public view returns (uint balance) {
+        return balances[tokenOwner];
+    }
+
+    function allowance(address tokenOwner, address spender) public view returns (uint remaining) {
+        return allowed[tokenOwner][spender];
+    }
+
+    function approve(address spender, uint tokens) public returns (bool success) {
+        allowed[msg.sender][spender] = tokens;
+        emit Approval(msg.sender, spender, tokens);
+        return true;
+    }
+
+    function transfer(address to, uint tokens) public returns (bool success) {
+        balances[msg.sender] = safeSub(balances[msg.sender], tokens);
+        balances[to] = safeAdd(balances[to], tokens);
+        emit Transfer(msg.sender, to, tokens);
+        return true;
+    }
+
+    function transferFrom(address from, address to, uint tokens) public returns (bool success) {
+        balances[from] = safeSub(balances[from], tokens);
+        allowed[from][msg.sender] = safeSub(allowed[from][msg.sender], tokens);
+        balances[to] = safeAdd(balances[to], tokens);
+        emit Transfer(from, to, tokens);
+        return true;
+    }
+}