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Yakko Majuri yakkomajuri

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yakkomajuri / helloworld.sol
Last active August 5, 2018 19:30
Hello World Contract
pragma solidity ^0.4.24;
contract Hello {
address owner;
constructor () public {
owner = msg.sender;
}
function HelloWorld () public view returns (string) {
@yakkomajuri
yakkomajuri / interface.html
Created September 24, 2018 13:26
<!DOCTYPE html>
<html lang="en">
<head>
<title>HODL dApp</title>
<style>
body {
background-color:rgb(218, 201, 154);
@yakkomajuri
yakkomajuri / definirsenha.html
Created September 25, 2018 09:31
<label for="definirsenha" class="col-lg-2 control-label">Senha:</label>
<input id="defsenha" type="text">
<button id="button3">Escolha uma senha</button>
@yakkomajuri
yakkomajuri / ui.html
Created September 25, 2018 09:39
<!DOCTYPE html>
<html lang="en">
<head>
<title>HODL dApp</title>
<style>
body {
@yakkomajuri
yakkomajuri / vaccine.sol
Last active January 22, 2019 17:21
pragma solidity ^0.4.21;
contract VaccineRegistration {
address owner;
address secondary;
address tertiary;
constructor(address _secondary, address _tertiary) public {
owner = msg.sender;
@yakkomajuri
yakkomajuri / proxy.sol
Created February 23, 2019 21:42
pragma solidity^0.5.0;
contract Registry {
function getImplementation(address _user) public view returns (address) {}
}
contract ProxyStorage {
Registry registryAddress;
@yakkomajuri
yakkomajuri / registry.sol
Created February 23, 2019 21:42
pragma solidity^0.5.0;
contract Registry {
address owner;
constructor() public {
owner = msg.sender;
}
@yakkomajuri
yakkomajuri / structuredproxy.sol
Last active February 24, 2019 14:37
contract Proxy {
modifier onlyOwner() {
address owner;
assembly {
owner := sload(0xfffffffffffffffffffffffffffffffffffffffe)
}
require(msg.sender == owner);
_;
}
@yakkomajuri
yakkomajuri / certificate-registration.sol
Created February 24, 2019 15:12
pragma solidity^0.5.0;
contract CertificateReg {
struct Certificate {
string name;
string course;
string date;
string instructor;
}
@yakkomajuri
yakkomajuri / ERC20Factory.sol
Created May 26, 2019 17:29
pragma solidity ^0.5.0;
library SafeMath {
function add(uint a, uint b) internal pure returns (uint c) {
c = a + b;
require(c >= a);
}
function sub(uint a, uint b) internal pure returns (uint c) {
require(b <= a);
c = a - b;