# DIP-87: Layers of Dope ### Summary The proposal focuses on deploying [Dope World](https://snapshot.org/#/dopedao.eth/proposal/0xfefee96a321ccc218d26c9f913bbd24cf2d733c801d030e863362b45388d207d) (DW) and [Roll Your Own](https://rollyourown.preview.cartridge.gg/) (RYO) as a Layer 3 (L3) application on top of the OP Mainnet. This proposal is an extension of [DIP-75: Dope World](https://snapshot.org/#/dopedao.eth/proposal/0xfefee96a321ccc218d26c9f913bbd24cf2d733c801d030e863362b45388d207d), the first version of RYO will still be deployed to Starknet in the short term according to the original proposal. This extension will utilize [Cartridge Slot](https://cartridge.gg/blog/introducing-slot) with [Katana](https://book.dojoengine.org/toolchain/katana/overview.html) for execution, taking advantage of [zero-knowledge proofs (zkproofs) and fractal scaling](https://www.dojoengine.org/en/articles/provable-games/) to provide cheap, low latency, high throughput compute that will be settled on to OP Mainnet. The L3 network will use PAPER tokens for transaction fees. The proposal also includes the development of a bridge between Layer 2 (L2) and L3 for briding tokens and data between the networks. ### Technical Specification **Layer 3 Deployment**: DW and RYO will be launched as an L3 application, leveraging the scalability and efficiency of Dojo and Cartridge Slot. The exact scaling architecture is still being defined, there will likely be a persistent [Dope World](https://snapshot.org/#/dopedao.eth/proposal/0xfefee96a321ccc218d26c9f913bbd24cf2d733c801d030e863362b45388d207d) Layer 3 and potentially ephermeral Layer 4 (L4) sequencers used for RYO sessions. **Use of Zero-Knowledge Proofs**: DW and RYO game rounds will employ zkproofs for aggregating and settling transactions onto the OP Mainnet. This reduces transaction costs, while maintaining the integrity and transparency of the game. Leveraging this technology entails deploying a STARK verifier and [fact registry](https://medium.com/starkware/the-fact-registry-a64aafb598b6) to OP Mainnet, necessary for registering outcomes of higher layers to lower layers. **Layer 2 Integration**: A bridge will be developed to facilitate seamless interaction between L2 and L3+ layers. This bridge will support the transfer of assets and data. Cartridge will provide tooling and infrastructure to seamlessly move between chains. Additionally, Cartridge will extend the hustler configuration and indexing services to ensure functionality and compatibility with Dope World. **PAPER as Fee Token**: Transactions within the game and across the bridge will require PAPER tokens as fees. This integration provides utility to the PAPER token, enhancing its relevance within the ecosystem. ### Timeline It is expected that this work will be ready for testing in Q2 2024 and production in Q4. There are dependencies on proving infrastructure, audits, and settlement technologies that could delay the production deployment. The Cartridge team has a track record of delivering innovative technologies to the Dope Wars ecosystem and will continue with that commitment. ### Compensation The proposal requests 100k OP tokens as compensation for the development and deployment of these features, vested over 1 year. ### Maintainance Cartridge will operate the L3 network. The operation of the Dope World network, including sequencing, proving, and settlment onto OP Mainnet, will be covered by transaction fees. The DAO can optionally assess a fee margin to be deposited back into the DAO treasury or burned. ### Intellectual Property For this project, any new intellectual property created by Cartridge, while working in the dopedao github repositories (e.g., any new intellectual property created while extending the hustler configuration and indexing services to ensure functionality and compatibility with Dope World) will be licensed under CC0, MIT, or a similar open-source license that is equally permissive. Cartridge shall otherwise retain sole discretion to determine whether and how any other intellectual property it developed or will develop may be licensed to assigned to this project. ### Conclusion This proposal aims to bring innovative gaming experiences to the Dope Wars ecosystem, leveraging the latest in blockchain technology for enhanced gameplay and user interaction. The integration of zkproofs and the development of a new L2 <-> L3 bridge are particularly noteworthy, as they represent significant advancements in blockchain gaming infrastructure.
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Saya Settlement

Optimistic settlement

11/28/2023
Supporting webauthn for transaction validation

WebAuthn is an industry standard specification for accessing Public Key credentials. It defines a set of APIs and interfaces for securely generating keypairs that can subsequently be used for user authentication. The specification is widely supported (Apple, Google, Microsoft) and provides an array of configuration options, each with different usability and security tradeoffs. In the most usable configuration, platform authentications (Face ID, finger print, ect) provide a simple way for users to securely generate + manage their keypair. Many platforms today include secure elements which can be leveraged through the webauthn api. Passkeys further improve user experience by transparently synchronizing credentials across devices and supporting recovery through the root platform account (i.e. iCloud). In the most secure configuration, roaming authentications allow specialized hardware to generate credentials and assertions, allowing users to manage their credentials using FIDO2 compliant devices such as Yubikeys or a Ledger (coming soon). This massive shift in authentication logic is being catalyzed by existing software and hardware providers that represent almost the entirety of the device ecosystem today. Supporting Webauthn credentials allows Starknet to capitalize this momentum, to provide a massive improvement in blockchain usability and, to provide a path for mainstream user adoption. To summarize:

11/10/2022
Supporting webauthn on Starknet

WebAuthn is an industry standard specification for accessing Public Key credentials. It defines a set of APIs and interfaces for securely generating keypairs that can subsequently be used for user authentication. The specification is widely supported (Apple, Google, Microsoft) and provides an array of configuration options, each with different usability and security tradeoffs. In the most usable configuration, platform authentications (Face ID, finger print, ect) provide a simple way for users to securely generate + manage their keypair. Many platforms today include secure elements which can be leveraged through the webauthn api. Passkeys further improve user experience by transparently synchronizing credentials across devices and supporting recovery through the root platform account (i.e. iCloud). In the most secure configuration, roaming authentications allow specialized hardware to generate credentials and assertions, allowing users to manage their credentials using FIDO2 compliant devices such as Yubikeys or a Ledger (coming soon). This massive shift in authentication logic is being catalyzed by existing software and hardware providers that represent almost the entirety of the device ecosystem today. Supporting Webauthn credentials allows Starknet to capitalize this momentum, to provide a massive improvement in blockchain usability and, to provide a path for mainstream user adoption. To summarize:

9/13/2022
Read more from Tarrence van As
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