Acknowledging the tools and services that power our platform
Study Bitcoin and the HNDL protocol are built using a combination of trusted open-source tools, protocols, and services:
Our project is built on and actively contributing to the Rootstock network — the leading platform for DeFi on Bitcoin. By leveraging Rootstock's EVM-compatible infrastructure and secure PoW consensus, we enable Bitcoin-native applications and services that are fast, scalable, and trust-minimized.
Our smart contracts are written in Solidity, the most widely used programming language for Ethereum and EVM-compatible blockchains such as Rootstock. Solidity enables the development of secure, high-performance smart contracts that power decentralized applications.
We rely on Solidity's rich feature set and strong community support to build reliable and scalable blockchain solutions.
The core contract architecture is based on libraries from OpenZeppelin Contracts, a widely adopted set of secure and audited smart contract implementations for Ethereum and other blockchains. Specifically, this project uses the ERC721 Non-Fungible Token Standard for NFT functionality, distributed under the MIT License.
Wallet logic and account management are powered by the Tokenbound Protocol, which enables NFT-bound accounts via ERC-6551. This allows each NFT to act as a fully autonomous smart contract wallet, capable of owning assets and executing transactions. Tokenbound is also open-source and available under the MIT License.
On-chain transaction data used throughout the application is sourced via the Blockscout API. Blockscout provides open-source blockchain explorers for EVM-compatible networks, offering transparent and reliable access to blockchain data.