- Gossamer is changing its focus to help Polkadot-SDK instead of making a new client  
- They want $815,358 USDC split into 3 payments over 6 months  
- Will work on 7 important tech areas with Parity  
- Team has experience from past Polkadot projects  
- Updates will be shared monthly on GitHub and social media  
- Contact info provided for questions  
- Full details in their online document

Gossamer's Contributions to Polkadot-SDK v2 [Q3/Q4 2025]

- Snowbridge is a bridge between Polkadot and Ethereum.  
- It has been working well for over a year with no problems.  
- It is now used by 24 parachains, wallets, and apps.  
- It has over $75M in value locked, making it the second biggest in Polkadot.  
- The team wants to improve it with faster transfers and better tools.  
- They are asking for $2.8M to fund the next year of work.  
- Some money is for past work, and some is for future improvements.

Snowbridge 2025/2026 Stabilized (v3)

- Polkadot is planning a big 3-day conference in Buenos Aires in November 2025.  
- It will have 2 main stages, 18 themed rooms, and a 24-hour hackerspace.  
- Around 3,000 people will attend, with many from outside Polkadot.  
- There will be hackathons with prizes and fun activities like gaming and art.  
- The event is free, with food and drinks included.  
- It will happen just before Devconnect, a major Web3 event in the same city.  
- The budget is $738,749, but they hope to save money and return some to the treasury.  
- The goal is to show Polkadot’s strength and bring the community together.

sub0 25 Polkadot Flagship Conference in Buenos Aires

- A new data structure called Merkle Mountain Belt (MMB) is proposed to improve blockchain efficiency.  
- MMB helps save money (around $1 million per year) for Polkadot users, especially in bridges.  
- It works better than older structures for recent data (1 minute to 1 day old).  
- The team will make a research paper and a Rust library by June 2026.  
- Funding requested: $340,198 upfront, plus extra DOT if savings exceed costs.  
- The team includes experts with Polkadot experience.  
- Changes from the last proposal include lower costs and simpler goals.  
- More details are available in links provided.

Merkle Mountain Belt (MMB)

- A group called Bifrost and Hyperbridge is asking for 795,000 DOT.
- They want to help make it easier for people to use DOT in different places.
- They noticed that not many people or money can get into Polkadot, which slows down its growth.
- Their plan is to give rewards for providing DOT liquidity in other networks like Arbitrum and Ethereum.
- The aim is to make DOT more popular and used widely in the web3 space.
- This will help developers and users join the Polkadot ecosystem better.
- The idea started as a group project but had to be split into smaller parts.

Polkadot DeFi Singularity

- Polkawatch helps make Polkadot more decentralized.
- They released new tools to improve data sharing.
- Polkadot is now one of the most decentralized blockchains.
- Their data is used by apps and gets 100,000 requests each month.
- It costs about $3,000 per month to run Polkawatch.
- This equals about $1.50 per user each year.
- They are asking for funding to keep working in 2025.
- They plan to update for Polkadot 2.0.

[USDC Resubmission] Polkawatch, Decentralization Analytics, Infrastructure and Maintenance 2025

- SubWallet is a wallet for Polkadot and Kusama.
- It works on browsers, phones, and the web.
- It has over 1 million users and supports 150+ networks.
- New features include easier swaps and staking.
- The team is asking for $795,500 from the Polkadot Treasury.
- This money is for work already done from August 2024 to March 2025.
- They lowered the budget based on community feedback.
- SubWallet helps make the Polkadot ecosystem better for everyone.

[Retroactive] SubWallet Development from August 2024 to March 2025

- Polkadot wants to sponsor 40 developers and community members to attend a conference in Buenos Aires.
- It will help pay for travel and hotel costs.
- People from all over the world can apply, like from the Americas, Asia, Africa, and Europe.
- To apply, you need to share what you’ve done for Polkadot and why you want to go.
- A team will pick people based on their work and how active they are.
- The goal is to help people learn, share ideas, and feel part of the community.
- If there is extra money, it will go back to Polkadot’s treasury.

Sponsorship for active devs and community members during Polkadot Symbiosis in Buenos Aires

Subscan is a tool that helps people see and understand information on the Polkadot blockchain.

- It shows data like transactions, accounts, and network activity.
- Subscan is asking for money to keep running and improving.
- The money will pay for servers, storage, and developers.
- They support 10 different Polkadot and test networks.
- They fixed bugs and added new features.
- They removed ads to make the website better for users.
- The total amount requested is $184,665.
- This helps developers, validators, and users use Polkadot easily.

Subscan Q4 2024 – Q2 2025 Funding Proposal: Basic Service Fee & Development Cost for the Polkadot and Westend Ecosystems

- A group called JUST Ventures is asking for money from Polkadot for work they did from January to June 2025.  
- They helped with governance, technical support, and community projects.  
- They worked on things like upgrades, bounties, and improving how Polkadot works.  
- They also helped with education and events, like the Polkadot Blockchain Academy.  
- They are asking for $149,908.38 in USDC (a stablecoin).  
- This is their third request, and the past two were approved.  
- They shared a public list of their work so people can see what they did.  
- They believe this funding model is fair because their work is hard to plan in advance.

JUST Retroactive Compensation 3.0

- Nova Wallet is a popular app for Polkadot, with 100+ networks.  
- It helps users stake, swap, and vote easily.  
- Over 13 million DOT is staked through Nova Wallet.  
- It adds new features like 1-click swaps and multisig wallets.  
- Nova Wallet is open-source and free for users.  
- The team also builds other tools for Polkadot.  
- This proposal asks for funding for past 7 months of work.  
- Users can test features before voting on the proposal.

Nova Wallet 7th Proposal: Retroactive Reimbursement: 1-Click Cross-Chain Swaps, Multisigs, Extended Ledger Support, Polkadot Vault v7.0 Support, Unified Address Format, Off-Ramps, Price Charts, DApp Browser Improvements, and more!

- The project will last **6 months**.  
- It focuses on growing Polkadot’s community in **Africa**.  
- So far, they have:  
  - Engaged **3,000+ people** in person.  
  - Hosted **45+ events**.  
  - Onboarded **20+ participants** to a program.  
- The goal now is **retention** (keeping people involved).  
- They updated the plan based on **feedback**.  
- More details are in the linked document.

Polkadot Africa Builder and Community growth continuation.

- Snowbridge needs to fix a failed payment from earlier.  
- The payment failed because there wasn't enough USDC in the treasury.  
- The system thought the payment worked, but it didn't.  
- They can't try again because the system marked it as done.  
- The original payment was approved here: [link](https://polkadot.subscan.io/treasury_spend/29).  
- The payment looked successful on Polkadot: [link](https://polkadot.subscan.io/extrinsic/25613045-2?tab=event).  
- But it failed on AssetHub: [link](https://assethub-polkadot.subscan.io/block/8652209?tab=event\&event=8652209-7).  
- They are asking for the same amount again: **312,500 USDC**.

Replace and Recover Failed Treasury Spend

- PolkaBiz helps Web3 startups grow on Polkadot.  
- They picked 15 teams from 30+ applications for a special grant program.  
- They held a fun pitch contest for these teams.  
- Made a new website called Founders Portal for builders to connect.  
- Over 30 people signed up on the portal.  
- They helped teams even after the program ended.  
- Asking for $62,000 for their work from May to July 2025.

PolkaBiz Retroactive Treasury Request May - July 2025.

- Polkadot needs upgrades to handle more transactions and keep parachains running smoothly.  
- The Quadrivium team will work on 5 key improvements for Polkadot-SDK.  
- These include faster data storage, better testing, and ensuring parachains stay online.  
- The team built KAGOME, a Polkadot client already used on the mainnet.  
- Parity and Web3 Foundation will help guide and review the work.  
- Funding requested: $288,000 USDC.  
- Quadrivium paused KAGOME development after a rejected proposal but still wants to help Polkadot.  
- The team specializes in blockchain tech and has deep Polkadot knowledge.

Treasury Spends