OpenBuild Dev Digest #43 | Deep Dive: ERC-4337, Programmable Money & Bitcoin Insights
Mar 22 - Mar 28
Welcome to OpenBuild Dev Digest #43!
This issue dives deep into crucial blockchain developments, examining the evolution of ERC-4337 two years after its mainnet deployment, exploring the exciting frontier of truly programmable money, and analyzing the technical reasons behind Bitcoin's limitations regarding rollups. Alongside these insights, discover current hackathon opportunities and available grants to fuel your next project.
Stellar Build Better Hackathon
📅 March 11 – March 31 📍Hong Kong 💸 25,000 USD Apply
Stellar invites developers to the "Build Better" hackathon, showcasing its user-focused smart contracts designed for real-world applications and supported by a thriving ecosystem. Participants can compete for $25,000 USDC in prizes across finance, creativity, and accessibility tracks, while gaining technical support, networking opportunities, and increased visibility. This event encourages builders to leverage Stellar's superior technology to redefine the possibilities of smart contracts.
Rivalz ai.hack4PH
📅 March 21 – May 4 📍Online 💸 7,500 USD Apply
Rivalz ai.hack4PH is a local AI x Web3 builder competition empowering innovators to push the boundaries of blockchain & AI development. Teams and solo developers alike can access support, education, and incentives to turn groundbreaking ideas into reality. With $7,500 in local prizes and potential seed funding, we're here to accelerate your growth.
ETH Hangzhou Hackathon 2025
📅 February 15 – March 31 📍Online 💸 20,000 USD Apply
ETH Hangzhou is a Hangzhou on-site hackathon sponsored by the Ethereum Foundation Ecosystem Support Program (ESP) for all ethereum developers to promote the development of the ethereum ecosystem in China. The hackathon invites a number of senior blockchain practitioners to provide guidance, and participants can develop applications or solutions based on the ethereum blockchain, as well as communicate and collaborate with other developers during the event.
✍️ ERC-4337: 2 Years After 👉Read(EN)
The ERC-4337 EntryPoint contract was deployed on the Ethereum mainnet almost two years ago. This article looks at the accomplishments of different projects over the last 2 years and what interesting developments have happened around the implementation of ERC-4337. We will also look at the production stats for ERC-4337 from different chains and apps.
✍️ The Frontier of Programmable Money 👉Read(EN)
The next frontier of digital money will be truly programmatic. It will be permissionless. It will be guided by the immutable laws of smart contracts rather than fragile intermediaries. Along this course, stablecoins will begin to adopt features which push them beyond the simple store and transfer of value, they will become inherently yield-bearing and revenue generating.
✍️ Why Bitcoin Has No Rollups 👉Read(EN)
Bitcoin lacks native smart contracts, instead embedding limited logic within its UTXO model, which significantly restricts its power compared to dedicated smart contract platforms. This UTXO system suffers from poor composability and state fragmentation, and Bitcoin's non-Turing complete scripting language further limits computational possibilities and developer ergonomics. Consequently, building complex applications often requires specialized DSLs, increasing development and auditing overhead compared to systems with integrated global state and more powerful scripting.
💸 Eco Foundation Bug Bounty
Maximum Bounty $20,000 👉 Apply
Eco provides secure and cheap stablecoin transfer pathways between connected chains (initially any L2 or L3 rollup settling on Ethereum), with a network of Solvers providing on-demand liquidity.
💸 Granite Protocol Bug Bounty
Maximum Bounty $150,000 👉 Apply
The Granite Protocol is an autonomous Bitcoin liquidity protocol where users can participate as liquidity providers, borrowers, or liquidators. Rewards are distributed according to the impact of the vulnerability based on the Immunefi Vulnerability Severity Classification System V2.2.
💸 TermMax Bug Bounty
Maximum Bounty $100,000 👉 Apply
TermMax is a DeFi protocol that reinvents borrowing, lending, and leveraging by combining fixed-rate mechanisms with customizable Automated Market Maker (AMM) pricing curves. Rewards are distributed according to the impact of the vulnerability based on the Immunefi Vulnerability Severity Classification System V2.2.
Selected open courses from technical skills to practical tasks, accessible to everyone with no cost!
🌟 ZKP FRI And STARK Open Course
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