Hi everyone, thank you for the support on Ethereum Uruguay 2025 Hackathon.
We have published the report on questbook with a link to the google doc, but we are reposting the information here for closing the grant properly according to guidelines.
It can also be read on the Document HERE
Final Report – Ethereum Uruguay 2025
1. Executive Summary
Project Name: Ethereum Uruguay 2025 (Hackathon)
Questbook Application: Application
Website & Socials:
Summary:
ETH Uruguay Hackathon 2025 is a week-long event (5 - 12 September) combining online education and in-person building days in Montevideo. It is designed to onboard university students and developers transitioning from Web2 to Web3, but also to bring new challenges to current Web3 devs. The hackathon includes technical workshops, mentorship, and prizes, covering DevConnect tickets and other expenses for the winning team to ETHGlobal’s Hackathon in Argentina in November.
Impact of the Grant:
The Arbitrum grant enabled us to:
- Host the Hackathon (covering venue, meals, equipment).
- Provide prizes for top teams building on blockchain technologies.
- Strengthen Arbitrum’s visibility in LATAM.
2. Performance Against KPIs
| KPI | Projected | Achieved | Notes |
|---|---|---|---|
| Teams in Hackathon | 12 | 10 | A bit below expectations |
| Final Pitches | 10 | 8 | Presented during Hackathon |
| Mentors & Jury | 15 | 20 | Included senior devs, key local figures related to the ecosystem, academics and an Abritrum Ambassador from Argentina |
| Projects or Integrations on Arbitrum | 5 | 5 | |
| Workshops | 4 | 4 | Included workshops about DevConnect, Legal considerations for startups, Governance and RWA, including a real case (Maldo.uy) |
3. Qualitative Impact & Community Feedback
Most Significant Outcome:
Ethereum Uruguay 2025 continues to position Uruguay as a regional hub for blockchain innovation, with increasing interest and participation from top universities which enables more builders to enter the ecosystem.
Testimonials & Feedback:
- Activachain: https://x.com/smithserrat/status/1968738858079588806
- Empowering Women in Web3: https://x.com/vaiossx/status/1968747640415277193
- Arbitrum appreciation post: https://x.com/pabloramosuy/status/1968735860376863041
- Testimonial from a Mentor/member of Jury: https://www.linkedin.com/feed/update/urn:li:activity:7376242185840656385/
Social Highlights:
- Official event summary + Arbitrum mention: https://x.com/EthereumUruguay/status/1969092036381839680?t=Yo1ZFQEv-0lsr4JmxA4h9Q&s=08
- https://x.com/ethereumuruguay/status/1969092036381839680?s=46&t=-xL3hHX34SIFqQm5ciLUcQ
- Event Thread covered by local web3 company: https://x.com/SpaceDevUy/status/1971589699568595107
- Winners announcements: https://x.com/EthereumUruguay/status/1968734800379777520
- Winner feedback/comment: https://x.com/pabloramosuy/status/1968736013544468658
- Video in Instagram: https://www.instagram.com/share/_cWyqT6H6
4. Financial Summary
The Hackathon budget was the core use of the Arbitrum grant. All funds were directed to cover logistics, participant support, merchandising, and prizes. Below is the breakdown (USD equivalent):
| Category | Amount (USD) | % of Total | Notes |
|---|---|---|---|
| Venue & Infrastructure | $2,126 | 26% | LATU venue fees ($1,001), furniture rental ($1,125). |
| Catering & Coffee | $1,575 | 19% | Catering for lunches ($588) and coffee station with sandwiches+food ($987). |
| Technical Services (Production / Sound / Stage) | $2,440 | 30% | LANG services for hackathon setup and production. |
| Merchandising & Branding | $1,405 | 17% | T-shirts, caps, bottles, banners, wristbands, stickers, entry materials. |
| Accommodation (Hacker House) | $480 | 6% | Hostel lodging for 15 participants (2 nights). |
| Media (Photo/Video) | $133 | 2% | Photographer/videographer coverage. |
| Prizes (Arbitrum) | $1,000 | 12% | Prize distributed to winning team(s) directly in crypto. |
| TOTAL | $8,127 | 100% | Fully executed as per budget. |
Comparison vs. Original Plan:
- Spending was aligned with expectations, with logistics & infrastructure as the largest portion (close to 50%).
- Merchandising was higher than originally estimated.
- Media support cost was minimal, optimized with community resources.
- All funds went directly to enabling the hackathon experience and rewarding participants.
5. Future Plans & Continued Ecosystem Alignment
- Support for Winning Teams:
- We will provide continued mentorship and ecosystem support to the top 2 Hackathon teams.
- They will be integrated into dedicated Telegram groups with mentors and sponsors to help them refine their projects, find partners, and access further funding opportunities (including Arbitrum’s ecosystem grants).
- Preparation for Devconnect Hackathon (Buenos Aires):
- Ethereum Uruguay will help selected teams prepare and showcase their projects at the upcoming Devconnect 2025 Hackathon.
- This includes technical advisory sessions, pitch practice, and introductions to regional VCs and ecosystem partners.
- Continued Arbitrum Engagement:
- We aim to maintain Arbitrum as a core track in future hackathons.
- Encourage our Hackathon winners to deploy on Arbitrum and present their progress in ecosystem forums.
6. Additional Remarks
We look forward to continuing to grow Arbitrum’s footprint in LATAM together. Thank you for the continued support.
Annex - Questions and Answers from Discord
Question 1:
Links to projects using Arbitrum:
- ActivaChain: GitHub - M0nsxx/ActivaChain
- Domera: GitHub - SingularStudioDev/domera at hackathon-ETH
- SongProp: Address: 0x5b6312A2...f8B05e465 | Arbitrum Sepolia
- Sunny: All protocol contracts are deployed and verified on the Arbitrum Sepolia test network. You can review the verified source code, read the contract state, and see all transactions at the following Arbiscan links::
- ProofOfMatch.sol: [0x88f9…1D14] Address: 0x88f9f78f...9e7411D14 | Arbitrum Sepolia - The core of the protocol. It mints the “Proof of Match” SBTs.
- MatchData.sol: [0x87DF…2643] Address: 0x87DFa564...974d72643 | Arbitrum Sepolia - Stores and manages the evolving data of each match (levels, interactions).
- PresenceScore.sol: [0x92e0…8324] Address: 0x92e04D68...533138324 | Arbitrum Sepolia - Calculates the Presence Score for on-chain reputation and Sybil resistance.
- CommitmentVaultFactory.sol: [0xB6eD…4c8] Address: 0xB6eD305e...81C41C4c8 | Arbitrum Sepolia - Factory that creates “Commitment Vaults” to secure RWA rewards.
- ExperienceNFT.sol: [0x4A04…8aDc] Address: 0x4A0466Bc...895f58aDc | Arbitrum Sepolia - Example of an RWA contract that tokenizes a business service (voucher).
- veritas-protocol/README.md at main · edsphinx/veritas-protocol · GitHub
- Project 5 didn’t present something concrete. They just indicated that they would use Arbitrum.
Question 2:
The final count was 47
The outcome of our hackathon wasn’t the desired not and truly not representative of all our hard work! In fact we will be having a workshop during DevConnect about how to reformulate Hackathons in order to make them more successful. We need to brainstorm and come up with a strategy for next year. Thanks for your kind patience!!