Gitcoin

We're accelerating development of new botanical based therapeutics by increasing data availability in nascent legal medical markets. Our work will reshape the cannabis research landscape by leveraging decentralized science, fostering collaboration, and ensuring open access. # Mission **OpenCann** is a community-driven initiative, aiming to harness the vast therapeutic potential of phytocannabinoids through a democratized knowledge platform.…

# Overview Our team, funded by EF PSE (https://pse.dev), is building open-source software, designs, and educational material to enable **private POAPs** built on ZK technology and NFC cards from ARX (https://arx.org). This work is based on an initial deployment at Zuzalu, where residents could add digital "stamps" from different events to their Zupass. A description of that experience is linked above. We want more communities, events, and artists to use this technology, because it provides a…

Uniswap V3 Calculator & Simulator is an exploration tool for Uniswap V3 providing insights and fee estimates which are usually abstracted away from the UI. Uniswap doesn't show returns or APR for any new liquidity position that you create, which makes it hard to judge how well a position would do. I created Uniswap V3 Fee Calculator & Position Simulator after I realized how painful it is to evaluate LPs on Uniswap V3 at the moment with the interface choosing to not include things like…

### **About Sprintcheckout:** Sprintcheckout is an innovative crypto payment gateway poised to bring the Ethereum payments ecosystem to the forefront of e-commerce. By leveraging the capabilities of Ethereum rollups and the nuances of account abstraction, Sprintcheckout offers a user experience that competes with, if not surpasses, traditional payment methods. ### **Key Features:** - **Non-Custodial & Fully Bankless:** Unlike many of its contemporaries, Sprintcheckout provides merchants and…

MetaMail (https://metamail.ink) is the web3 email provider. With MetaMail users use wallet/ENS as email address (e.g. suneal.eth@mmail.ink), and sign/encrypt to ensure the security. MetaMail is compatible with other mail like Gmail. All those features are totally free, no gas fee. MetaMail won Gold Prize in EthShanghai22 Hackathon! We need you help to keep MetaMail free and neutral. We have open-sourced our frontend code at Github. Currenty we are building the new version UX with greate…

## DigiOracle DigiOracle (formerly KlayOracle) is a highly modular blockchain oracle that allows you securely connect your Web3 applications with events, data, and assets from the real world. DigiOracle, formerly KlayOracle, started during the KlayMaker22 Hackathon on Klaytn and won the Public Goods track in the KlayMakers 22 hackathon. Since that time, we’ve rearchitected the protocol to build out the core technology that powers the DigiOracle for more EVM compatible chains. ## Some of our…

## What is Hildr Hildr is an OP Stack rollup client written in Java 20 with GraalVM native. ## Motivation We want to build the full OP stack based on the latest Java. Vitalik emphasized the importance of client diversification for decentralization in his blog. Currently, there are multiple client implementations based on Go, Rust, C# and Java.The diversification of clients is also the expectation of the OP stack. Currently, the official development of various services in the OP stack is…

Smart Invoice flips traditional invoices on their heads with a combination of escrow, milestone payments, and arbitration. We enable clients and service providers to transact with less trust and fewer intermediaries. ## Origins Smart Invoice originally was custom built by RaidGuild for improving how clients paid for work. RaidGuild Raid Parties (project teams) needed better assurances that clients could pay for contracted services. At the same time, we set out to give clients more confidence…

#### Thunder: A Secure Messaging Platform on the Blockchain  ##### Introduction Thunder is a blockchain project that aims to provide a secure messaging platform for users. With the rise of web3 technologies, users are more aware of the importance of privacy and security. Thunder leverages the ERC-4337 technology so we can onboard the mass adoption of users. Users do not…

ZeroPool is blockchain agnostic privacy engine. Our solution is build on zkSNARKs. We research and create privacy technologies under fully opensource license and you can use it in your products. EVM, Substrate, NEAR, WAVES implementations are available and live on testnet. What is under the hood: * Fawkes-crypto / Groth16 / Plonk /Poseidon / * Solidity / Typescript / Angular / NestJs / RxJSDone: * Support of PLONK 2022 Q1 Future Plans: * Implementing lightweight recursive prover with…

Smoothly is a tool for home stakers which enable us to pool together tips and MEV from block proposals. If you want to support the health of the network by staking from home, but also want the benefits of reward smoothing (historically only been offered by staking service providers), you can now have the best of both worlds. By pooling together execution layer rewards, validators have access to the mean reward and enjoy distributions at fixed intervals. To join, validators change the fee…

zkblock started as a boilerplate for developing zk dapps using circom ( groth and plonk). But since inception, it has grown to include other tools required to develop zk and web3 dapps. The goal of zk-block is educate and help users to develop quality zk and web3 apps. Since, the inception we have included several features to make zkblock useful for development, You can read blog posts to learn about new features and various technical topics such as new EIPs, Transient Storage etc.…