- **Event**: Substrate Hackathon in Hangzhou, China on December 19-20, 2020.
- **Participants**: 80-100 Substrate developers, project managers, designers, and blockchain enthusiasts.
- **Workshops**: 10 online workshops on Substrate and Polkadot ecosystem, livestreamed on Bilibili.
- **Judges and Mentors**: 20 experts from various blockchain projects.
- **Prizes**: 3000 DOT (1500 for prizes, 1500 for operational costs).
- **Projects**: Hacker projects and bounties will be posted on HackerLink.
- **Organizer**: DoraHacks, a global hacker community known for organizing blockchain hackathons.
- **HackerLink**: A platform for Chinese developers to engage with blockchain projects through bounties, grants, and hackathons.

proposalId

Substrate Hackathon @ Hangzhou, China on Dec.19-20, 2020

### LocalCoinSwap Milestone 2 Proposal Summary

- **Project:** LocalCoinSwap is a peer-to-peer cryptocurrency exchange.
- **Goal:** Provide non-custodial trading on Polkadot.
- **Milestone 1:** Created generic libraries for Substrate-based chains.
- **Milestone 2:** Integrate Polkadot trading on LocalCoinSwap's API and front-end.
- **Features:** End-user wallet, non-custodial P2P trading, pricing mechanisms, and crypto-to-crypto swaps.
- **Github:** [LocalCoinSwap Github](https://github.com/LocalCoinSwap/)
- **Homepage:** [LocalCoinSwap Homepage](https://localcoinswap.com/)
- **Detailed Proposal:** [Google Docs Link](https://docs.google.com/document/d/1vP54xXbJxPC1nJQ0RA7TC4S16mFAuNvSP6iDxfFFcPc/edit)

LocalCoinSwap Treasury Proposal - Python Substrate libraries upgrade & Polkadot integration: Milestone 2

### Summary of Post Content

- A bug in the v26 runtime of Polkadot caused improper slashing of candidacy bonds in the council.
- This bug has been fixed.
- **Motion 43** aims to refund candidates and runners-up who were affected by the bug.
- A gist is provided for hash verification, generated from a specific code snippet.
- The motion uses a `utility.batch` to create a single batch of reimbursements from the treasury.
- Councillors are encouraged to vote on the motion.
- If the motion passes, it will be voted on by the community.
- The original post can be found [here](https://polkadot.polkassembly.io/post/165).

proposalHash

Incorrect Slashing on Council Caused by elections-phragmen Pallet Bug

### Summary of the Post

1. **Project Overview**: Megaclite aims to bring zero-knowledge proof (ZKP) support to Polkadot's WASM smart contract ecosystem.

2. **Technical Suggestions**: W3F and Parity recommended using Arkworks library and adding more elliptic curves (BLS12-377, BW6_761) for better performance.

3. **Implementation Plan**: Megaclite will deliver two versions of cryptographic units (ADD, MUL, Pairing) for four curves, one in native layer and one in Runtime WASM layer.

4. **ZK Rollup**: Focuses on improving blockchain performance by moving state transitions off-chain and verifying them using ZKPs.

5. **Development Phases**:
   - **v0.1**: On-chain support for elliptic curves (alt_bn128, bls12_381, BLS12-377, BW6_761).
   - **v0.2**: Off-chain toolbox for Ink! contracts.
   - **v0.3**: Sample payment DApp using ZK Rollup technology.

6. **Cost**: Estimated cost for v0.1 is $31,500, requiring a Treasury Proposal of 5431 DOT.

7. **Verification**: The project will be verified through Jupiter Testnet, Youtube demos, and Github repository.

Patract Hub's treasury proposal for Megaclite (ZKP support) v0.1

### Summary of Proposal 8 Cancellation

- **Proposal 8** aimed to increase the number of validators on the network to 259.
- The submitter requested the Council to cancel the proposal, stating it was an error.
- The submitter's identity was verified through a Remark call and GitHub username.
- **Motion 41** was created to cancel Proposal 8 as requested.
- Councillors are asked to vote on Motion 41 at their convenience.

propIndex

Cancellation of Proposal 8

### Redspot Summary

- **Redspot** is a development tool for smart contracts, aiming to simplify the contract development process.
- It is developed by **Patract Hub** and will have a homepage at [redspot.patract.io](https://redspot.patract.io).
- **Future Plans**:
  - **v0.3**: Promote Redspot, add plugins like Waffle and Gas Report.
  - **v0.4**: Add TypeScript support and multi-language SDK.
- **Plugins**:
  - **Jupiter Testnet Plugin**: For contract development on different chains.
  - **Gas Report Plugin**: Shows gas consumption for contract transactions.
  - **Assertion Library**: Simplifies contract testing.
- **Development Phases**:
  - **M1**: Homepage and API docs.
  - **M2**: Detailed tutorials and documents.
  - **M3**: Upgrade plugin system.
  - **M4**: Develop Jupiter and Gas Report plugins.
  - **M5**: Develop assertion library.
- **Cost**: $32,700, requesting 7,975 New DOT from the Treasury.
- **Verification**: Official website, YouTube demo, and GitHub repository.

Patract Hub's treasury proposal for Redspot v0.3

### SUBSCAN Operating Expenses Proposal

- **Duration:** December 2020 to February 2021
- **Purpose:** Funds for operating expenses of SUBSCAN (Polkadot network)
- **Current Costs:** Estimated $1500 based on October Google Cloud Platform bill
- **Expenses Covered:** Compute Engine, Cloud SQL, Stackdriver Logging, Cloud Storage, etc.
- **Financial Situation:** No current income sources; seeking financial support to continue operations
- **Future Plans:** Tentative quarterly funding applications or monthly based on previous month's bill
- **Goal:** Transition to a sustainable business model; reduce reliance on external funding as income grows
- **Privacy:** Detailed bills can be provided privately to council members, respecting trade secrets

The operating expenses of SUBSCAN (Polkadot network) from December 2020 to February 2021

**Motion 38** is about upgrading the runtime to version 26. Here are the main points:

- **Upgrade Priority:** Medium
- **Changes:**
  - Fixes logging of target names with dashes.
  - Stops actively opening old substreams.
  - Makes some storage query functions unsafe.
- **Release Notes:** You can find the details [here](https://github.com/paritytech/polkadot/releases/tag/v0.8.26).

Runtime upgrade to v26

### Proposal for Polkadot On-Ramp

- **Introduction:** The Polkadot ecosystem needs easier access for new users. Currently, new users must use centralized exchanges, which can be difficult for beginners.

- **Problem:** Entering the Polkadot ecosystem is complicated for new users, especially those unfamiliar with cryptocurrency.

- **Solution:** Ramp offers an easy way to buy DOT (Polkadot's native token) directly within apps. It works like a "Stripe for crypto onboarding."

- **Features:** Ramp allows users to buy DOT using cards, bank transfers, and open banking, all within the same interface.

- **Benefits:** This makes the onboarding process faster (from days to minutes) and more user-friendly.

- **Implementation:** Developers can integrate Ramp's SDK into their apps, so users don't have to leave the app to buy DOT.

- **Goal:** To provide a simpler, faster way for new users to join the Polkadot ecosystem, boosting its growth.

- **Details:** The full proposal can be found [here](https://docs.google.com/document/d/1u0h1CRrK-a-a83mecWSzNfvlBxUCurFf6Z6cME_HHCA/edit?usp=sharing).

Adding DOT to Ramp's SDK and enabling frictionless on-ramping across multiple dapps and wallets

### LocalCoinSwap Proposal Summary

- **Project:** LocalCoinSwap is a peer-to-peer (P2P) cryptocurrency exchange.
- **Focus:** Provides trustless fiat on-ramp solutions for global crypto accessibility.
- **Target Audience:** Users in developing regions with limited access to mainstream finance.
- **Development:** Successfully tested on Kusama, now extending infrastructure for Polkadot.
- **Goal:** Create a non-custodial trading integration for Polkadot, enabling trustless fiat on/off ramps for DOT.
- **Proposal Update:** Refined based on initial discussions.
- **Documentation:** Detailed proposal available [here](https://docs.google.com/document/d/1vP54xXbJxPC1nJQ0RA7TC4S16mFAuNvSP6iDxfFFcPc/edit#).
- **Feedback:** Welcomes questions and feedback.

LocalCoinSwap Treasury Proposal - Python Substrate libraries upgrade & Polkadot integration

- The upcoming runtime upgrade v0.4.0 requires `polkadotXcm.safeXcmVersion` to be set correctly for sending XCM messages.
- From v0.4.0, `pallet-xcm` will use the configured storage value instead of a hardcoded one.
- Currently, XCMv2 is in use, with V1 being the oldest supported format and V2 the current one.
- With v0.4.0, XCMv3 will be deployed, making V1 deprecated, V2 the safe default, and V3 the latest version.
- Failing to configure the `polkadotXcm.safeXcmVersion` before v0.4.0 will prevent sending XCM messages.

Set safe default XCM version to 2

### Summary

- **Problem**: Sharing news and knowledge about Polkadot and Kusama is slow and not visually appealing.
- **Solution**: A tool to create "flash news" and "knowledge tips" as images, making it easier to share quickly.
- **Features**: 
  - Write a title and details to generate a visually appealing image.
  - Choose from prepared image banners.
- **Scenarios**: 
  - Quickly share project news in Telegram without needing to open a browser.
  - Easily explain concepts like "what is Kusama council" on social media.
- **Milestones**: 
  - Design and develop the tool in one week.
  - Cost: $4000 (833 Dots).
- **Future Plans**: 
  - Add more themes and banners.
  - Allow custom banners.
- **OpenSquare**: A team dedicated to helping Polkadot ecosystem projects collaborate.

OpenSquare's treasury proposal for a knowledge tip authoring tool

### Elara

- **Elara** is a project by Patract Labs, aiming to provide a unified access layer for developers working with Substrate-based multi-chain networks.
- It offers account management, project management, and data access services for developers on Polkadot.
- Elara v0.2 introduces features like account space creation, project management, and detailed access statistics.
- The project plans to optimize performance and support multi-chain architecture in future versions.
- Elara v0.2 development includes UX design, account and project management, and integration with Polkadot mainnet.
- The total cost for Elara v0.2 development is $35,200, equivalent to 7333 New DOT.
- Developers can use Github accounts to log in, create projects, and access Polkadot nodes via Elara.

Patract Hub’s treasury proposal for Elara v0.2

Propose external: Authorize runtime upgrade v0.3.10 (spec_version 47)

### Elara Summary

- **Purpose**: Elara aims to provide a unified access layer for developers to interact with Polkadot, Kusama, and other parachains, reducing development costs.
- **Inspiration**: Inspired by Infura from the Ethereum ecosystem, Elara is named after Jupiter's seventh moon.
- **Features**:
  - **v0.1**: Implements Substrate node access, including server-side framework, monitoring, and a front-end dashboard.
  - **v0.2**: Expands functionality and optimizes performance, including account space and detailed DApp access information.
  - **v0.3**: Supports multi-chain architecture, providing public access services for Polkadot, Kusama, and other parachains.
  - **v0.4**: Focuses on Polkadot ecosystem access and service operation, deploying nodes globally.
- **Development Plan**:
  - **v0.1**: 5 weeks, from September 21 to October 26, involving design, development, integration, and testing.
- **Cost**: Estimated at $34,400 for v0.1, with a Treasury Proposal of 8600 New DOT.
- **Verification**: Demonstrated through a YouTube demo video and Github source code.

Patract Labs' treasury proposal for Elara v0.1

### Summary of Referendum 7 Failure

- **Referendum 7** was passed by both the Council and the community.
- The referendum was supposed to be executed after a certain number of blocks.
- The required number of blocks was set to **0 (zero)**, which caused the referendum to fail.
- The code checks if the target block number is in the past, and **0** failed this check.
- If the number of blocks had been **1**, the referendum would have been executed in the next block.
- The proposer is now **re-proposing** the same motion to the Council.
- The goal is to have the motion passed again and added to the referenda queue.

Proposal to gradually increase the number of validators

- **Service**: BlastAPI provides high-performance HTTP and WSS APIs for Moonbeam, Moonriver, and Moonbase alpha networks.
- **Cost**: $24,000 for the first quarter of 2023, payable 80% in GLMR and 20% in MOVR tokens.
- **Benefits**: Developers can focus on app development without managing infrastructure, reducing costs and risks.
- **Features**: 99.9% service availability, 24/7 monitoring, geo-load balancing, and support for Debug and Trace methods.
- **Usage**: Free version allows 25 API calls/second; dedicated accounts offer 12 million API calls/month.
- **Regions**: Support in EU, US, and APAC regions.
- **History**: Blast has supported Moonbase alpha and Moonriver since June 2021, and Moonbeam since January 2022.
- **Public APIs**: Available at specific URLs for each network.

Blast support for Moonbeam, Moonriver, and Moonbase alpha (Jan-Mar 2023)

### Europa Summary

- **Europa** is a sandbox for Substrate runtime development, inspired by Ethereum tools like Ganache and Buidler EVM.
- It simplifies developing, debugging, and testing Substrate runtime applications and pallet-contracts.
- Europa removes P2P and consensus functions, focusing on execution and RPC interfaces.
- Future plans include:
  - **v0.1**: Independent runtime environment for easier expansion.
  - **v0.2**: Enhanced error notifications and contract module modifications.
  - **v0.3**: Improved integration with other tools and extended compatibility.
- Development milestones include implementing a local database, block packing, and RPC functions.
- The cost for v0.1 is $37,800, with a Treasury Proposal of 9450 New DOT.
- Verification includes a demo video and GitHub source code.

Patract Labs' treasury proposal for Europa v0.1

SubstraTEE Scalability Proposal

### Redspot Summary

1. **Purpose**: Redspot aims to standardize contract development, hide compilation details, and create a smooth development process.

2. **Versions**:
   - **v0.1**: Built core functions based on Truffle.
   - **v0.2**: Migrated to Buidler for better plugin extensibility.
   - **v0.3**: Added Substrate-specific plugins and multi-language SDK support.
   - **v0.4**: Integrated libraries like Typechain.

3. **v0.1 Issues**:
   - No interactive CLI for contract interaction.
   - Limited key management options.
   - Unique contract addresses per account.
   - No gas estimation.

4. **v0.2 Design**:
   - Migrated to Buidler for better scalability.
   - Added plugins to address v0.1 issues.

5. **v0.2 Plugins**:
   - **Key Pair**: Improved key management.
   - **Multiple Execution**: Allows repeated contract deployment.
   - **Jupiter Test-Net**: Supports repeated deployment on Jupiter.
   - **Gas Usage Report**: Provides gas usage details.

6. **Cost**:
   - Total cost: $30,600.
   - Treasury proposal: 7650 New DOT.

7. **Verification**:
   - Demo video on YouTube.
   - Source code on GitHub.

Patract Labs' treasury proposal for Redspot v0.2

- **Motion 25** proposes increasing the number of validator slots by 1 every era (14,400 blocks) for 100 eras.
- The motion will go to a referenda queue for 7 days if approved by the council.
- Council members can verify the presage hash [here](https://polkadot.polkassembly.io/post/93#3baa6f49-06c7-4d47-9cb8-44bd19f789d6).
- The original proposal can be found [here](https://polkadot.polkassembly.io/post/93).
- Council members are encouraged to comment or ask questions.

A proposal to gradually increase the number of validators

- This proposal suggests opening a channel to HydraDX.
- It needs approval from both Polkadot and HydraDX governance.
- A similar channel was tested before Battery Station moved to Rococo.
- The proposal sends XCM data to Polkadot.
- Polkadot then runs a specific command: `hrmp.hrmpInitOpenChannel(2034, 1000, 102400)`.
- This command is part of the XCM data: `0x3c00f2070000e803000000900100`.

Init HRMP open channel request to HydraDX

- A referendum to open a channel to HydraDX was approved.
- The XCM message was sent and executed on Polkadot.
- The channel was not opened due to insufficient funds in Zeitgeist's account.
- The account has now been funded.
- The XCM message can be sent again to open the channel.

Council Motions