In 2017, Blockstream set out to develop a smart contract language that outperforms Bitcoin Script and EVM, offering more expressiveness with stronger safety assurances. Eight years later, we believe we've done it.
Introducing Simplicity.
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Simplicity isn't like Solidity, or most modern programming languages, which are Turing-complete. Instead, the language was designed to express any finite function while avoiding the risks associated with unbounded loops and global state.
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Simplicity provides developers with high confidence in their applications, allowing them to know all potential outcomes and fee costs before execution.
The recent Bybit hack illustrates the risks of including features like recursion and global state.
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With Simplicity's arrival, we have for the first time a clean foundation for serious financial applications, without the complexity and patchwork of risks that defined the last era of DeFi.
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Want to build covenants, vaults and delegation schemes? Now you can on the @Liquid Network . Want to create derivatives, pooled wallets or tokenless DEXs? That's possible too.
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Simplicity on Liquid is just the beginning. With community feedback, real-world usage, and more tooling, docs, wallet support, and example contracts, our next major goal is to activate on a Bitcoin test network.
Get started today.
Blockstream
Simplicity Launches on Liquid Mainnet
Back in 2017, Russell O'Connor at Blockstream published the Simplicity whitepaper. The goal was ambitious: design a clean-slate vision for a smart ...
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Simplicity isn't like Solidity, or most modern programming languages, which are Turing-complete. Instead, the language was designed to express any finite function while avoiding the risks associated with unbounded loops and global state.
Simplicity
Simplicity: Next-Generation Smart Contracts for Bitcoin
Build secure, transparent Bitcoin smart contracts with Simplicity. Learn, write, and deploy powerful contracts using Simplicity and SimplicityHL.
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Simplicity provides developers with high confidence in their applications, allowing them to know all potential outcomes and fee costs before execution.
The recent Bybit hack illustrates the risks of including features like recursion and global state.
Blockstream
The Risks of Expressive Smart Contracts: Lessons from the Latest Ethereum Hack
The fresh Bybit exploit in an Ethereum smart contract has revived long-standing debates about the security trade-offs built into the Ethereum proto...
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With Simplicity's arrival, we have for the first time a clean foundation for serious financial applications, without the complexity and patchwork of risks that defined the last era of DeFi.
---
Want to build covenants, vaults and delegation schemes? Now you can on the @Liquid Network . Want to create derivatives, pooled wallets or tokenless DEXs? That's possible too.
The Liquid Network
The Liquid Network: The Financial Layer for Bitcoin Capital Markets
Liquid is an open-source Bitcoin layer-2 that enables fast, confidential bitcoin payments and secure asset issuance.
Simplicity
Simplicity: Next-Generation Smart Contracts for Bitcoin
Build secure, transparent Bitcoin smart contracts with Simplicity. Learn, write, and deploy powerful contracts using Simplicity and SimplicityHL.
Read the full story on how Blockstream Local, now powered by the Blockstream app, plans to fuel grassroots Bitcoin adoption with real sats and free open-source self-custody tools.
From El Salvador to Cuba, Namibia to Indonesia, learn how to get involved.
In Mexico, 
In Nigeria, Bitcoin Anambra is strengthening its grassroots mission by delivering Bitcoin education and self-custody tools to the people. π³π¬
Returning from El Salvador and Guatemala, Kirscha Kievits is set to equip students with Jades for hands-on Bitcoin learning.
Watch the recap from @PubKey NYC and see the moment the donation was announced.
Read the full story on how this acquisition strengthens our R&D footprint, brings new talent onboard, and supports Bitcoin-native innovation in Europe.
