davidbongcc

davidbongcc / bitcoin-merkle-proofs.js

Created August 18, 2020 16:51 — forked from eddmann/bitcoin-merkle-proofs.js

Bitcoin Internals: Verifying Merkle Roots using Merkle Proofs in JavaScript

	const fetchLatestBlock = () =>
	fetch(`https://blockchain.info/q/latesthash?cors=true`)
	.then(r => r.text());

	const fetchMerkleRootAndTransactions = block =>
	fetch(`https://blockchain.info/rawblock/${block}?cors=true`)
	.then(r => r.json())
	.then(d => [d.mrkl_root, d.tx.map(t => t.hash)]);

	const random = arr =>

davidbongcc / escrow.sol

Created September 20, 2019 12:44 — forked from sandervanlaar/escrow.sol

	pragma solidity ^0.4.21;

	import "../../node_modules/zeppelin-solidity/contracts/token/ERC20/ERC20.sol";
	import "../../node_modules/zeppelin-solidity/contracts/ownership/Ownable.sol";
	import "../webshop/Webshop.sol";

	contract Escrow is Ownable {
	enum PaymentStatus { Pending, Completed, Refunded }

	event PaymentCreation(uint indexed orderId, address indexed customer, uint value);

davidbongcc / hash.py

Created February 11, 2019 07:34 — forked from spalladino/hash.py

Solution for Coursera Cryptography 1 course Week 3 programming assignment