Website

Event Ticket

Join TELEGRAM

Privacy

Privacidade

Cryptography

Criptografia

DeFi

Governance

Real World Assets

Ativos do Mundo Real

Activos del Mundo Real

Actifs du Monde Réel

ETHTokyo 2025 hackathon

ETHTokyo

Solidity

TypeScript

Blockchain

Creativity

Creatividade

Critical Thinking

Pensamento Crítico

Problem Solving

Resolução de Problemas

Web Development

Desenvolvimento Web

React

MySQL

Node.js

UX Design

Experiência do Usuário

Java

Rust

Computer Vision

Visão Computacional

Analytical

Analítica

Large Language Models

Deep Learning

OpenAI

Python

JavaScript

DevOps

Push the boundaries of privacy, security, and censorship resistance with cutting-edge technologies.

Hackathon Registration

Day 1 - Team up

Day 2 - Hack

Day 3 - Submit

Voting

GT - Global Results

Cypherpunks Anonymous

Counterculture Capital

Human Protocols

Results

<h2><strong>ETHTokyo'25 Hackathon</strong></h2><p>ETHTokyo is an engaging conference and hackathon for the global Ethereum community where people with all sorts of backgrounds, ideas, and skills come together to share their love for Ethereum and its world. Whether you're a seasoned expert or just curious, you'll find friends and inspiration here. Our goal is simple: to connect diverse minds and foster the creation of amazing new innovations for the future. Join our three-day hackathon and collaborate with talented individuals, build innovative solutions, and compete for exciting prizes!</p><p><em><strong>[IMPORTANT] This is an on-site hackathon taking place in Tokyo, Japan. You must purchase our </strong></em><a href="https://app.moongate.id/e/ethtokyo2025" target="_blank"><em><strong>event ticket</strong></em></a><em><strong> to register as an official participant of ETHTokyo'25. Participants of the hackathon will receive 50% refund of ticket price upon successful project submission.</strong></em></p><h2>Goals</h2><p><strong>2025 hacking theme</strong>: <em>Emancipatory Tech for Future of Humanity</em></p><p>Emancipation begins in the mind; let us radically reimagine how we can harness technology to empower people, preserve culture, and build a sustainable future in ways not possible today.</p><p>The goal is to innovate not for its own sake, but to envision new ways and better approaches to do things through reshaping and redefining the constraints of our own constructed reality.</p><p><br /></p><h2>Hackathon Tracks</h2><h3><strong>🥷 Cypherpunks Anonymous (Privacy &amp; Security)</strong></h3><p>In a world where surveillance and data exploitation have become the norm, privacy is not just a right — it’s a necessity. The Cypherpunk movement emerged to challenge this status quo, using cryptography as a tool to empower individuals to reclaim control over their digital lives. Today, Ethereum provides the perfect platform to extend this vision through programmable cryptography — enabling privacy-preserving applications, secure computations, and anonymous transactions. Cypherpunks Anonymous is a track for builders who share this vision and are ready to push the boundaries of privacy, security, and censorship resistance with cutting-edge technologies like ZKPs, MPC, and FHE. Join us and help shape the future where cryptography safeguards freedom for all.</p><h3><strong>✊ Counterculture Capital (Financial Innovation)</strong></h3><p>Five years after DeFi Summer, we've witnessed the evolution from simple token swaps to sophisticated financial instruments rivaling traditional markets in complexity and capability. From lending protocols to prediction markets that democratize forecasting and information discovery, DeFi continues to drive the ongoing financial revolution. Yet, this revolution is far from complete. As traditional finance continues its slow integration with blockchain technology, DeFi builders are crafting the financial infrastructure that will ultimately bridge these worlds—creating systems that are not only more efficient and accessible than their traditional counterparts but fundamentally more equitable.</p><p>At ETHTokyo, we recognize that DeFi innovation represents the most profound challenge to established power structures in the global economy. DeFi remains the beating heart of Ethereum's revolutionary potential; behind the composable legos and liquidity pools lies a radical vision: financial services that operate without gatekeepers, accessible to anyone with an internet connection, transparent in their mechanics, and governed by their communities rather than centralized authorities.</p><p>This track welcomes builders who share this vision of democratizing access to sophisticated financial tools, who work to reimagine capital efficiency, create robust risk management systems, thoughtfully bridge institutional capital with DeFi principles, bring real-world assets on-chain, extend financial services to the unbanked, or develop governance models that truly embody decentralized ideals—united by a shared vision of transforming finance for greater accessibility and equity.</p><h3>💚 Actually Intelligent (AI &amp; Society)</h3><p>The well-praised technological breakthrough that is Artificial Intelligence faces a dilemma. Behind the convenience it offers, the technology is increasingly being appropriated into manipulative ad engines and corporate-enterprise surveillance. At ETHTokyo, we’re here to flip that. This track embraces AI as a power tool to empower individuals to 10x and 100x, but insists on liberation over manipulation, consent over capture, commons over enclosure. Building systems that make people harder to coerce and easier to coordinate. Private by default. Local-first. Proof-carrying. Forkable. </p><p>Actually Intelligent is a track that leverages the programmability of Ethereum’s decentralized system and the flexibility of AI systems to explore actually intelligent solutions; grounded in the real world, human experience, social dynamics, and lifestyle. Here, we challenge existing paradigms and aim to return to the core values that users truly need.</p><h2>Audience</h2><p>Builders, industry professionals, creatives students; anyone is welcome to participate.</p><h2>Deliverables</h2><p>- <strong>A deployed demo</strong> of your project.<br />- A valid submission must provide <strong>a URL to its open-source code</strong>.<br />- A short presentation file to describe your project. <strong>It must be submitted in PDF format</strong>.</p><h2>Important Dates</h2><p>9/13 Hack start<br />9/15 Project submit</p><p><br /></p><p><br /></p>

overview

timeline

<h2>Code of Conduct</h2><h3>TL;DR</h3><p>Be excellent to each other. If a participant is, in our sole discretion, harassing or otherwise unacceptably impacting other participants' ability to enjoy ETHTokyo, we at all times reserve the right to remove the offending person(s) from the event without refund.</p><h3>Don't Shill</h3><p>ETHTokyo is designed for builders and developers - We aim to create a welcoming, collaborative space which allows for great networking opportunities. Please respect this space and the opportunity it affords by not aggressively shilling coins, investment opportunities, or financial products. If unsure, please ask the ETHTokyo staff.</p><h3>Harassment Policy</h3><p>We do not condone any form of harassment against any participant, for any reason.</p><p>Harassment includes, but is not limited to, any threatening, abusive, or insulting words, behavior, or communication (whether in person or online), whether relating to gender, sexual orientation, physical or mental ability, age, socioeconomic status, ethnicity, physical appearance, race, religion, sexual images, or otherwise. Harassment also includes hacking, deliberate intimidation, stalking, inappropriate physical contact, and unwelcome sexual attention.</p><p>Participants asked to stop any harassing behavior must comply immediately. We reserve the right to respond to harassment in the manner we deem appropriate, including but not limited to expulsion without refund and referral to the relevant authorities.</p><p>This Code of Conduct applies to everyone participating at ETHTokyo - from attendees and exhibitors to speakers, press, volunteers, etc.</p><p>Anyone can report harassment. If you were or are being harassed, notice that someone else was or is being harassed, or have any other concerns related to harassment, you can contact a ETHTokyo volunteer or staff member, make a report at the registration desk or info booth, or submit a complaint to <a href="mailto:contact@ethtokyo.org" target="_blank">contact@ethtokyo.org</a>.</p><h3>Approved Swag Only</h3><p>Only pre-approved teams are authorized to distribute swag (clothing, sales, freebies, or any form of promotional material) at ETHTokyo! Examples of permitted groups include the ETHTokyo team, and some of the other pre-approved event participants such as sponsors. Please respect this decision. If you are unsure of whether you are allowed to distribute your swag, ask the friendly staff!</p><h3>Be Respectful to Speakers (and each other)</h3><p>Be mindful of your volume when you're in or near event venues. Noise levels can quickly get out of control and become disruptive to the program going on inside! Please respect the speakers and participants if you are arriving late to an event and/or getting up to leave an event early — try to cause as little disruption as possible.</p><h3>Local Laws</h3><p>You must comply with all venue and facility rules and regulations during your participation in ETHTokyo, including all safety instructions and requirements.</p><h3>How to Report</h3><p>If you notice any violations of this Code of Conduct please report them to contact@ethtokyo.org.</p><h3>Remember</h3><p>ETHTokyo is what you make of it, and as a community we can create a safe, meaningful, and incredible experience for everyone! 🦄</p>

rules

<p><strong>🥷 Cypherpunks Anonymous (Privacy &amp; Security) - $3000</strong></p><p>In a world where surveillance and data exploitation have become the norm, privacy is not just a right — it’s a necessity. The Cypherpunk movement emerged to challenge this status quo, using cryptography as a tool to empower individuals to reclaim control over their digital lives. Today, Ethereum provides the perfect platform to extend this vision through programmable cryptography — enabling privacy-preserving applications, secure computations, and anonymous transactions. Cypherpunks Anonymous is a track for builders who share this vision and are ready to push the boundaries of privacy, security, and censorship resistance with cutting-edge technologies like ZKPs, MPC, and FHE. Join us and help shape the future where cryptography safeguards freedom for all.</p><p><em>Requirements</em></p><ul><li>Core Use of Cryptography: Project must incorporate applied cryptography (ZKPs, MPC, FHE, etc.) as a fundamental component.</li><li>Privacy-Preserving Design: Prioritize protecting user data and ensuring confidentiality.</li><li>On-Chain or Off-Chain Feasibility: Solutions should be implementable on Ethereum or compatible networks.</li><li>Real-World Applicability: Address practical privacy, security, or censorship resistance challenges.</li><li>Open Source Ethos: Preference for projects that align with cypherpunk values of transparency and decentralization.</li></ul><p><strong>✊ Counterculture Capital (Financial Innovation) - $3000</strong></p><p>Five years after DeFi Summer, we've witnessed the evolution from simple token swaps to sophisticated financial instruments rivaling traditional markets in complexity and capability. From lending protocols to prediction markets that democratize forecasting and information discovery, DeFi continues to drive the ongoing financial revolution. Yet, this revolution is far from complete. As traditional finance continues its slow integration with blockchain technology, DeFi builders are crafting the financial infrastructure that will ultimately bridge these worlds—creating systems that are not only more efficient and accessible than their traditional counterparts but fundamentally more equitable.</p><p>At ETHTokyo, we recognize that DeFi innovation represents the most profound challenge to established power structures in the global economy. DeFi remains the beating heart of Ethereum's revolutionary potential; behind the composable legos and liquidity pools lies a radical vision: financial services that operate without gatekeepers, accessible to anyone with an internet connection, transparent in their mechanics, and governed by their communities rather than centralized authorities.</p><p>This track welcomes builders who share this vision of democratizing access to sophisticated financial tools, who work to reimagine capital efficiency, create robust risk management systems, thoughtfully bridge institutional capital with DeFi principles, bring real-world assets on-chain, extend financial services to the unbanked, or develop governance models that truly embody decentralized ideals—united by a shared vision of transforming finance for greater accessibility and equity.</p><p><em>Requirements</em></p><ul><li>Security as Freedom: Approach security not merely as technical robustness but as protection of user autonomy and economic sovereignty.</li><li>True Interoperability: Design for genuine ecosystem collaboration rather than siloed value capture, rejecting the extractive patterns of traditional finance.</li><li>Cooperative Scaling: Address scaling in ways that distribute benefits across all users rather than concentrating advantages to large capital holders.</li><li>Radical Transparency: Go beyond open source to create systems where operations, governance, and economics are comprehensible to average users, not just technical experts.</li><li>Regulation Reimagined: Rather than simply complying with existing frameworks which were established far before DeFi existed, articulate how your project might inform a more equitable regulatory future.</li></ul><p><strong>💚 Actually Intelligent (AI &amp; Society) - $3000</strong></p><p>The well-praised technological breakthrough that is Artificial Intelligence faces a dilemma. Behind the convenience it offers, the technology is increasingly being appropriated into manipulative ad engines and corporate-enterprise surveillance. At ETHTokyo, we’re here to flip that. This track embraces AI as a power tool to empower individuals to 10x and 100x, but insists on <em>liberation over manipulation</em>, <em>consent over capture</em>, <em>commons over enclosure</em>. Building systems that make people harder to coerce and easier to coordinate. Private by default. Local-first. Proof-carrying. Forkable. </p><p>Actually Intelligent is a track that <span>leverages the programmability of Ethereum’s decentralized system and the flexibility of AI systems to explore <em>actually intelligent</em> solutions; grounded in the real world, human experience, social dynamics, and lifestyle. </span>Here, we challenge existing paradigms and aim to return to the core values that users truly need.</p><p><em>Requirements</em></p><ol><li>Autonomy delta: Core functions must be available via user-owned infra. No GPT wrappers.</li><li>Verifiability: Project must have at least one of the following - (a) zero-knowledge proof of inference/training property, (b) TEE attestation with verifier, or (c) bit-for-bit fully reproducible build. In any case, a minimal verifier script must also be attached.</li><li>Forkability: Project must be able to reasonably run on consumer-grade hardware. If it also has a one-command (`docker compose up` or `make run`) install-flow, even better.</li><li>Composability: Project must support one or more cypherpunk primitives; IPFS for storage, key-based auth (wallets/passkeys); zkp library interop.</li><li>Innovative and Open-Minded Approach: Embrace radical rethinking of existing systems and encourage an open source ethos, fostering collaborative improvement and creative breakthroughs that redefine what’s possible in everyday life.</li></ol>

prizes

projects

participants

juries

mentors

resources

categories

<h2>What is ETHTokyo?</h2><p>ETHTokyo is a yearly technology event for the global Ethereum community, offering nonstop technical talks, workshops, hackathons, and side events. We have been doing this since 2023, and around 500 participants come each year to enjoy world-class presentations, demos, community events, and the 3-day hackathon.</p><p><br /></p><h2>Who can attend ETHTokyo?</h2><p>ETHTokyo is targeted to anyone with a creative mind and a hacker spirit (in the classical definition of the word). Anyone with a technical appetite is welcome to apply, not limited to industry professionals.</p><h2>How are applicants selected?</h2><p>ETHTokyo aims to select the best, most participative and motivated, programmers and creatives. For this we rely on you to fill in relevant information in your profiles and questionnaires where we ask. What matters is your potential and your passion for Ethereum, no matter your level of experience.</p><h2>How much does it cost?</h2><p>All participants must purchase our <a href="https://app.moongate.id/e/ethtokyo2025" target="_blank">event ticket</a> for $90, which grants admission to all official parts of the event (conference and hackathon). There is also a discount for students. </p><p>Furthermore, all participants who successfully submit a project on the final day of the hackathon will receive a full refund for their tickets after the event.</p><h2>Can I register our company employees in bulk?</h2><p>Event tickets can be purchased in bulk. However, all hackathon participants must register their profile individually.</p><h2>Do you pay for the atendees' transportation and/or accomodation costs?</h2><p>No. However, there may be discounts and other partnerships. If so, these will be announced in the months leading to the event, so make sure you follow us in one of the social networks where we're present.</p><h2>Can I bring a guest to the event?</h2><p>No, all attendees must apply to the event individually.</p><h2>Do I have to participate in the 72h hackathon?</h2><p>It is your choice to participate in some or all parts of the event. However, there is only the full-event ticket, and we do encourage you to participate in something during ETHTokyo, instead of passively roaming around the venue. Fortunately, you have many choices; the conference, the hackathon, and plenty of other side-events to engage with.</p><h2>I was selected but can't attend the event, what do I do?</h2><p>Please let us know. Spots are limited and it would be nice if we could offer another candidate a place instead.</p><p><br /></p><p><br /></p><h2>When will the schedule be available?</h2><p>A detailed schedule will be available closer to the event, on our website</p><p><br /></p><p><br /></p><h2>Will there be a live stream from the event?</h2><p>Yes, live streaming will be available. The feed will be focused on the activities taking place on the main stage, such as talks and contests. When nothing is going on there, you can expect a general transmission of the event.</p><p><br /></p><p><br /></p><h2>Will the talks be recorded?</h2><p>Unless the speaker states otherwise, every talk will be recorded and available online in the weeks following the event.</p><p><br /></p><p><br /></p><h2>Is there food and beverages at the event?</h2><p>Food and drinks will be provided free for all attendees. We'll be providing lunch and dinner daily, and there will be random snacks and beverages available 24/7.</p><p><br /></p><p><br /></p><h2>Why is the official language English?</h2><p>Although most of our participants are from Portugal, we have attendees coming from all over the world. English is usually well understood and accepted. Our main motivation is technology and talent, and these are global attributes, so our main 'language' is what we use to code. English is not the only language at the event, though. The event is bilingual, so there may be talks held in portuguese. These will be properly identified in the event's schedule.</p><p><br /></p><p><br /></p><h2>Do I get a participation certificate at the end?</h2><p>Yes, we can provide participation certificates on demand in the days following Cypherpunks Anonymous. Just make sure you actually participate.</p><p><br /></p><p><br /></p><h2>Should I arrange for a place to stay?</h2><p>In the spirit of the event, attendees can choose to stay the night at the venue, sleeping in sleeping bags or such. But if this is not your thing, you have many accommodation options elsewhere around. Closer to the event we may announce discounts and partnerships. Please note that Lisbon has plenty of tourism all year round, which means high occupation in hotels and hostels, so try and book your reservations in advance.</p><p><br /></p><p><br /></p><h2>Are there hotels nearby?</h2><p>Cypherpunks Anonymous's venue (Pavilhão Carlos Lopes) is in a very central location in the city, so there are plenty of hotels around. These are just a few examples: Zenit Lisboa, Lisbon Fontana Park, Hotel Miraparque, Lisbon Top Hostel, Home Sweet Lisbon, Midtown Hostel</p><p><br /></p><p><br /></p><h2>Are there showers available?</h2><p>The logistics for this are complicated, so don't count on it. Bathrooms are available, but showers may not exist at all or be very limited in time. You'll have to improvise.</p><p><br /></p><p><br /></p><h2>I've decided to stay at the venue. Can I bring a small tent to Cypherpunks Anonymous?</h2><p>Although the event has 'Camp' in its name, tents are not allowed due to space limitations inside the venue. However we'll do our best to provide you with optimal spots for taking naps.</p><p><br /></p><p><br /></p><h2>What about a sleeping bag?</h2><p>This one is allowed, no problems with that.</p><p><br /></p><p><br /></p><h2>Is there Wi-Fi at the event?</h2><p>Of course. There will also be a limited number of ethernet outlets in the table area, but teams doing projects for the 48h competition have priority on these.</p><p><br /></p><p><br /></p><h2>Will the Wi-Fi be any good this year?</h2><p>The million-dollar question… The organization will provide a world-class setup but, ultimately, this depends on you and your fellow attendees. Bear in mind that hotspots are NOT ALLOWED at the event. Wi-Fi is a shared medium, like a pool, please don't pee in the pool.</p><p><br /></p><p><br /></p><h2>What are these other activities?</h2><p>The main activity is, of course, the 48h programming competition, where your team works on a project during the event and presents it on stage on the final day. In the Quiz Show teams answer tech/science related questions and in the Security CTF teams try to solve cybersecurity-related challenges. There's also a retro gaming competition where participants play classic games on stage. These are just some examples.</p><p><br /></p><p><br /></p><h2>How can I participate in these other activities?</h2><p>Some will have qualifier challenges in the weeks leading to Cypherpunks Anonymous (eg. the Quiz Show and the Security CTF), you just need to participate and score enough to get qualified. Others require only that you register during the event. Check the pixels.camp website for more details.</p><p><br /></p><p><br /></p><h2>If I'm selected to participate in one of these activities, can I select anyone to team up with me? Even a speaker?</h2><p>Yes, but it'll help if you tell that person beforehand.</p><p><br /></p><p><br /></p><h2>Does that mean I can invite someone who's not attending Cypherpunks Anonymous?</h2><p>No. The other members in your team must also be approved attendees. And to be approved they must apply for the event (individually).</p><p><br /></p><p><br /></p><h2>Are there prizes for winning one of these activities?</h2><p>In most cases, yes. But we won't tell you what the prize is in advance.</p><p><br /></p><p><br /></p><h2>I want to be a speaker at the event. How can I propose a talk?</h2><p>Talks proposals are handled through GitHub pull requests. Follow the instructions in the talks repo ( https://github.com/pixelscamp/talks ).</p><p><br /></p><p><br /></p><h2>Do I need to apply to Cypherpunks Anonymous to propose a talk?</h2><p>Yes, you do. And if your talk is accepted, it means you're immediately accepted as an attendee as well (of course).</p><p><br /></p><p><br /></p><h2>Since english is the official language, should my talk be given in english?</h2><p>English is the official language, yes, but it's optional for participants and speakers. If you're not comfortable (enough) with delivering a talk in english, you can choose to deliver it in portuguese instead. You could also choose Klingon, or Goa'uld, but it makes sense to choose a language that at least a few people in the audience would be able to understand… ;)</p><p><br /></p><p><br /></p><h2>I am interested in exhibiting or becoming a sponsor, what do I do?</h2><p>If you are interested in sponsoring Cypherpunks Anonymous, please contact us at for a prospectus and sponsorship application instructions.</p><p><br /></p><p><br /></p><h2>I'm a tech guy but I also do recruiting. Is it OK if I talk to someone at Cypherpunks Anonymous to see if they're interested in working with me?</h2><p>You cannot engage in direct recruitment activities during Cypherpunks Anonymous. This is one of the core rules of the event. The attendees don't enjoy unsolicited targeting, and we don't want to turn the event into a battlefield for hires. Trust us, it's better for you, not only for attendees. Having said this, it's OK if the interest is mutual and both parties want to talk (meaning the attendee approaches you). It's definitely NOT OK if you're preaching to the crowd or fishing around for interest.</p><p><br /></p><p><br /></p><h2>Can I leave a few flyers on the tables to advertise my group/event/company?</h2><p>That would depend on what you're advertising. The only hard rule on this is that you talk to us first at .</p><p><br /></p><p><br /></p><h2>Still have questions?</h2><p>File an issue on GitHub (https://github.com/PixelsCamp/docs/issues/new?labels=question)</p><p><br /></p><p><br /></p>

ETHTokyo 2025 hackathon

Timeline

Organization

Industries

Timeline (UTC)

Products

Community

Company

Help