https://github.com/summa-tx/swaps

SPV-based ETH/BTC swaps
https://github.com/summa-tx/swaps

Last synced: 2 months ago
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SPV-based ETH/BTC swaps

• Host: GitHub
• URL: https://github.com/summa-tx/swaps
• Owner: summa-tx
• License: other
• Created: 2019-04-07T00:45:25.000Z (almost 6 years ago)
• Default Branch: master
• Last Pushed: 2022-01-21T20:20:12.000Z (about 3 years ago)
• Last Synced: 2023-03-02T19:15:43.293Z (almost 2 years ago)
• Language: Solidity
• Homepage:
• Size: 710 KB
• Stars: 11
• Watchers: 3
• Forks: 4
• Open Issues: 4
• Metadata Files:
  • Readme: README.md
  • License: LICENSE-APACHE2.md

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README

        
## Integral Swaps

This repo contains examples of two SPV-based cross-chain trades, as well as

some helpful Python utilites for interacting with them. **This is

unaudited code** and we have not provided usage instructions. This code is

presented without license. It is a complex cryptoeconomic system. If you're

interested in using or deploying this code, please reach out to us directly via

[our website](https://summa.one).

**Stateless Swaps** use

[Stateless SPV](https://medium.com/summa-technology/summa-auction-bitcoin-technical-7344096498f2)

to establish Bitcoin payments.

**Callback Swaps** use a full Bitcoin Relay with

[SPV proof callbacks](https://github.com/summa-tx/relays/blob/master/solidity/contracts/OnDemandSPV.sol).

These are the preferred method.

Each have been abstracted to work with multiple asset types, including

`NoFun`, a wrapper intended to manage the complexities of revocable

centrally managed tokens.

### Building and testing contracts

```

npm i

truffle compile

truffle test

```

### Linting

```

npm run lint

```

### Python Setup

- Install `pyenv`: [link](https://https://github.com/pyenv/pyenv-installer)

- Install `pipenv`:

[link](https://pipenv-fork.readthedocs.io/en/latest/install.html#installing-pipenv)

Then run: the following to set up the virtual environment:

```

$ pyenv install 3.7.0

$ pipenv install

```

Then interact with the scripts via interpreter

```

$ pipenv run ipython

```