matthewjablack

initiator_funding_input: 41 + script_sig_len bytes
	- previous_out_point: 36 bytes
		- hash: 32 bytes
		- index: 4 bytes
	- var_int: 1 byte (script_sig length)
	- script_sig: script_sig_len bytes
	- witness <----	"witness" is stored
 			separately, and the cost for its size is smaller. So,
 		    the calculation of ordinary data is separated

matthewjablack

Atmoic Loans Liquid Example

The goal of this is to show how an Atomic Loan can be achieved using Liquid (L-BTC as collateral and elements stablecoin asset such as L-USDT)

Parties involved:

1. Alice - Lender

2. Bob - Borrower

matthewjablack

diff --git a/packages/core-wallet-state/src/reducers/networks.js b/packages/core-wallet-state/src/reducers/networks.js
index be622680..c83a39b7 100644
--- a/packages/core-wallet-state/src/reducers/networks.js
+++ b/packages/core-wallet-state/src/reducers/networks.js
@@ -2,11 +2,11 @@ import {
   UPDATE_CURRENT_NETWORK,
   UPDATE_NETWORK_LIST
 } from '../actions/networks';
-import { TESTNET } from '../constants/networks';
+import { MAINNET } from '../constants/networks';

matthewjablack

diff --git a/packages/core-bitcoin/src/apis/transaction.js b/packages/core-bitcoin/src/apis/transaction.js
index 889a3502..535c0c71 100644
--- a/packages/core-bitcoin/src/apis/transaction.js
+++ b/packages/core-bitcoin/src/apis/transaction.js
@@ -17,15 +17,17 @@ const isValidTxnAmount = (balance, totalAmount) => balance.gt(totalAmount);
 export const transfer = async (transaction, network, account) => {
   const { to, amount, unit } = transaction;
   const { transactionUrl } = network;
-  const { balance } = await BalanceAPI.getBalance({
-    account,

matthewjablack

const config = {
  bitcoin: {
    rpc: {
      host: 'http://localhost:18443',
      username: 'bitcoin',
      password: 'local321'
    },
    network: 'bitcoin_regtest',
    value: 1000000,
    mineBlocks: true

matthewjablack

const config = {
  bitcoin: {
    rpc: {
      host: 'http://localhost:18443',
      username: 'bitcoin',
      password: 'local321'
    },
    network: 'bitcoin_regtest',
    value: 1000000,
    mineBlocks: true

matthewjablack

pragma solidity ^0.5.10;

/// @title      ISPVConsumer
/// @author     Summa (https://summa.one)
/// @notice     This interface consumes validated transaction information.
///             It is the primary way that user contracts accept
/// @dev        Implement this interface to process transactions provided by
///             the Relay system.
interface ISPVConsumer {
    /// @notice     A consumer for Bitcoin transaction information.

matthewjablack

  async createManySigs (tx, address, cols, expirations, period) {
    const isSegwit = cols[0].paymentVariantName === 'p2wsh' || cols[0].paymentVariantName === 'p2sh_p2wsh'

    const { approveExpiration, liquidationExpiration, seizureExpiration } = expirations

    let lockTime = 0
    if (period === 'seizurePeriod') {
      lockTime = liquidationExpiration
    } else if (period === 'refundPeriod') {
      lockTime = seizureExpiration

matthewjablack

Request Loan: https://kovan.etherscan.io/tx/0x093d4854f34647c764f32ded2c9595a018d5d48282ee4e4a9ae5c073b068d451
Lock Collateral: https://blockstream.info/testnet/tx/f4e139634aef6896bd940df4439263f087054532bb49ecf0ff5aaba307d70d02
Withdraw Loan: https://kovan.etherscan.io/tx/0x8de4def0b81e5cc27a9be71b5b6e7716916200c45befb8fca59ec0953c5c26d7
ERC20 Approve: https://kovan.etherscan.io/tx/0x4046eafad114ee86f2e69b2470fb68fd9962d41cdf073d0925f8757d7a263504
Repay Loan: https://kovan.etherscan.io/tx/0xfa10ea047bb936360b6c19af250777e63c652b3f246e49bddb0d35da6a59f20c
Unlock Collateral: https://blockstream.info/testnet/tx/2585b1b54b30194f2c9d24e2ad6bfec2e44598bbc340d5b26624b29dc92b9635

matthewjablack

import './ExampleCoin.sol';

pragma solidity ^0.4.21;

contract ERC20Loan {
  uint public principle;
  uint public interest;

  address public lender;
  address public borrower;