Blockstream launches Simplicity to bring new alternatives to Ethereum (ETH) Solidity
Table of contents
- Differentiated paths for different architectures
- The rise of dedicated smart contract programming languages
Blockstream, led by Adam Back, officially launched Simplicity, a native smart contract language designed for Bitcoin, providing Ethereum’s Solidity with a new competitive option.
As the creator of Liquid, Bitcoin’s second-layer network, Blockstream has a deep background in the field of crypto, and its leader Adam Back is a key figure in the history of Bitcoin’s development. The Simplicity language released this time aims to introduce stronger programmability into the Bitcoin ecosystem.
According to the company's information to Cointelegraph on Thursday, Simplicity will be integrated into the Liquid network. This move is seen as an important step in Bitcoin (BTC) from a purely "digital gold" role to supporting complex decentralized financial applications.
In addition, Blockstream has simultaneously launched SimplicityHL - a high-level abstract version of the language, allowing developers to build smart contracts at a higher level, improving development efficiency and readability.
According to a Blockstream representative, the language is currently "officially open to use" and has launched a browser-based integrated development environment (IDE) to facilitate developers to get started quickly.
Differentiated paths for different architectures
There is an essential difference between Simplicity and the Solidity language widely used by Ethereum, which stems from the fundamental difference between Bitcoin and Ethereum’s underlying architecture.
Solidity is specially built for Ethereum Virtual Machines (EVMs) and relies on a global state model for network maintenance. This "status" records a real-time snapshot of all account balances and contract storage.
Bitcoin adopts the UTXO (unspent transaction output) model and does not have a unified state view across the entire network. This architectural difference directly affects Simplicity's design logic. Blockstream pointed out: "Abandoning dependence on global state is a key innovation." This means, "all state data required for contract execution must be carried by the transaction itself and explicitly passed."
Researchers stress that Solidity developers need to adjust their thinking patterns when turning to Simplicity: they can no longer access global variables by default, but must explicitly pass in each step of the operation. Under this mechanism, states or variables cannot be shared between smart contracts, and all information interactions must be completed through transactions. The company representative explained:
"Even if there is a problem with a contract, the impact is limited to the local scope of the transaction path. This is completely different from the global state mechanism of Ethereum that affects the whole body, and in the long run it will help build a safer and clearer contract system."
Meanwhile, Simplicity does not support recursive and infinite loop structures. Blockstream believes that such functions are not necessary in the blockchain environment, but may introduce unpredictable risks.
The rise of dedicated smart contract programming languages
The release of Simplicity marks a further expansion of the dedicated smart contract language ecosystem.
The Noir language, which was launched in 2022, focuses on the writing and verification of ZK-proof. In 2023, it was adopted as the official development language by Aztec, the Ethereum layer two-layer network that focuses on privacy protection.
Today, Noir has become an important tool for privacy-first applications, and its architecture deeply integrates zero-knowledge cryptography features.
Another representative language is Leo, which also focuses on building a zero-knowledge proof system, and grammatical design fully reflects support for privacy protection.
In addition, the Vyper language in the Ethereum ecosystem is also worth mentioning. It is compatible with EVM, but it focuses more on security and simplicity in design, and is committed to reducing potential attack surfaces. Currently, it has been adopted by many mainstream decentralized finance (DeFi) projects.
The above is the detailed content of Blockstream launches Simplicity to bring new alternatives to Ethereum (ETH) Solidity. For more information, please follow other related articles on the PHP Chinese website!

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