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The Devcon5 Bible | Ethereum Foundation Blog



The Devcon5 Bible | Ethereum Foundation Blog

Welcome to Devcon.

We’ve got a lot to cover, and in this post you’ll read about it all! Read closely as we go over transit to the venue from Osaka’s airports, the Devcon Venue, the Agenda & Devcon App, and more!

Please bookmark this piece to answer all questions that you may have related to early and on-site registration, experiences around the venue, participating during talks, side/after events and everything else Devcon5.

To kick things off, let’s discuss how to get where you’re going.

I. Transit

Most attendees will be landing soon, and we want to make sure that you’re able to easily navigate toward the Devcon venue.

The majority of folks will arrive at Osaka’s international airport, Kansai International Airport (KIX). From there,  there are a few easy ways to reach the ATC Hall, or the Cosmo Tower, Hyatt Regency and Quintessa hotels.

a. KIX to the Venue 

KIX Airport Limousine Bus to Hyatt Regency Osaka

The Limousine Bus is an express-bus just steps from the doors to the airport. There are only two stops before this service drops off at the Hyatt Regency Osaka, which is adjoined to the venue. The bus leaves every half hour and is bound for Osaka Nanko/Universal Studios.

The cost for a ride is JPY1,600 per person (about $15 USD) one way, or 2,800 yen ($26 USD) round trip. Travel time is 50 minutes. Check the time-table here:

Via Metro 

The metro is a low-cost option for getting around any part of Osaka. From Umeda/Honmachi/Shinsaibashi/Namba, take the Osaka Metro Chuo Line to “Honmachi” station, and from Honmachi station, take the Cosmo Square to Trade Center station for about 18 minutes.

From Shin-Osaka, take the Osaka Midosuji Line to Honmachi station, and from “Honmachi” station take the Cosmo Square to Trade Center station for about 18 minutes.

Via JR (Japan Rail)

From Tennoji or Osaka station, take the Loop Line to “Bentencho” Station and transfer to the Osaka Metro Chuo Line via Cosmosquare for about 15 minutes and get off at “In front of the trade center” Station. This trip should run about ¥390.

b. ITM to the Venue

For those arriving via connection or domestically at Itami Airport (ITM), we recommend the Itami-Airport Limousine Bus, which will quickly bring you to the center of Osaka. From there, connect with Osaka Metro’s Chuo Line to reach the ATC Hall.

And for more information on local transit, we’re always thrilled by our community taking the lead, and pleased to recommend and share these community resources:

Other Useful navigation tools 

II. Devcon Registration

a. Early Registration

Optionally, skip the line on Day 1 by registering on Monday to receive your wristband and badge!

Date: Monday, October 7th

Time: 2:00 PM – 7:00 PM

Location: Sakishima Cosmo Tower 1st floor

b. DOORS OPEN: On-Site Registration

Date: Tuesday, October 8th

Time: 8:00 AM (Programming begins @9:00AM)

Devcon Venue: ATC Hall 2 Chome-1-10 Nankokita, Suminoe Ward

  1. Registration “need to know”

  • All lines are equal — no alphabetical order this year!

  • Before you arrive, you must redeem your code for a ticket QR and download the PDF to your device or print it in advance.

  • Wristbands are required for entry and must be picked up at registration. Do not lose your wristband — it will not be replaced.

  • Badges are optional, and can be picked up at the Swag Station in Hall C

  • For all on-chain auction and raffle ticketeers, please ensure that you’ve redeemed your tickets here. Staff will be able to assist on-site if needed.

c.  Internet

We know how conference Wi-Fi often feels, so we’re trying out a few new things this year. In addition to the standard venue Wi-Fi option, we’ll have dedicated connections in each room to help with presentation-streaming and more. Further, if you have an unlocked phone, let our staff know at registration for a gift and some dedicated data (a data-only SIM card valid for the duration of the conference [5 days]) of your very own.

d. Reserve Swag during the ticketing process? 

We’ve got you covered, but you’ll pick things up a bit later. See the Swag section for more information (Pt. III-B-1-ii)!

III. Venue & Experiences

a. Welcome to the ATC Hall

Address: 2 Chome-1-10 Nankokita, Suminoe Ward, Osaka, 559-0034, Japan

The ATC hall is a beautiful and modern venue complete with indoor and outdoor space, a direct train stop for quick downtown access, a view of the water (for those nautically-inclined among us) and on-site food and shopping!

We have a number of unique activities and spaces for everyone to look forward to both inside and outside the main venue, including a packed schedule on stages of all sizes, a wide variety of food options, and other experiences.

Let’s start with those experiences!

b. Inside the Venue

1. The Incredible Hall C!

i. Tabling Teams

Hall C is directly accessible from the main entryway and gathering place of the ATC Hall. Inside you’ll find staff and swag from thirty of the Ethereum ecosystem’s leading teams. Be sure to visit throughout the conference as well, since many tabling sponsors and groups will rotate after Day 2 of Devcon.

ii. Swag & Sales

Speaking of swag, Hall C is also the place to pick up your pre-ordered swag and more! Did you select your gear during the ticketing process? Head to the Swag Station and present your QR (download separately from your ticket) to redeem for your swag. If you selected a size, we’ve got it reserved for you.

Want something more? We’ve got exclusive designs and add-ons like Devcon hoodies for sale as well. Check those out here: – use the password “osaka5” 😉

iii. Badge Design, Sticker Station and Food!

Is your badge not yet covered in pastel colored and meme-related stickers? We can help. Last year’s Devcon stickers went quickly, so we’ve reloaded. Head to the back of Hall C to fulfill your sticker dreams, and grab a snack along the way.

2. Decompression Room II

Need to avoid eye contact? Take the elevator to Floor 6 and find a relaxing, refreshing space for guests to doze and laze about. No devices please! On Day 4, there will be a meditation session led by a Zen monk for those in dire need of a boost after a long conference.

3. Dogfooding, Another Kind of Food

i. Ethereum Galaxy (Burner Wallet Game) 

Come play Ethereum Galaxy, a webapp scavenger hunt where you can discover all the stars in the Ethereum community’s night sky, built by FlexDapps. Collect stars by visiting all areas of the conference scanning QR codes, and complete a whole galaxy to win prizes and the ultimate easter egg.

ii. Proof Of Attendance Protocol (POAP)

Snag your collectible ERC-721 token to prove your attendance at Devcon!

4. Crypto Grows on Trees

‘On the Revitalization of Nature’ is an art/thought experience produced and curated by the Department of Decentralization. Through compelling art projects (many of which use the technologies that we are so hard at work on such as Plasma, IPFS and others) we seek to activate the emotional attachment we feel towards our planet and spark thoughts on the current climate crisis. Participants are invited to share their ideas, questions and complaints in a traditional “Complaints Book” which will be later used on a second iteration of the show.

5. Elsewhere 

Step through a portal, leaving the hustle and bustle behind, and into an interactive theater exhibit that is Elsewhere. At the entrance you’ll find a relaxing, refreshing space for guests to take a deep breath and decompress. Visit Celo’s listening booth, flip pages through especially excellent books, chat with friends over a cup of tea while clearing your head. Further in, an artful and interactive experience exploring the veiled concepts with which we mythologize money will lead you on a journey unlike any other.

To find “Elsewhere”, take elevator #2 (left of Hall B) to the 3rd floor and head to Umier Cube/Room 308:

c. Outside the Venue

1. Devcon Park

We can’t wait for you to see the backyard! Devcon Park overlooks the water from the back of the Devcon Venue, and is built by our friends at ConsenSys. Enjoy seating, food, drink and great views.

2. Devcon Park Amphitheater

Need some air? Check out the cool outdoor amphitheatre area for more talks, panels and workshops. This space also has some free blocks of time if you’d like to schedule your own talk! Just head on down and pencil it in. We’ll provide an update here soon with details on how to schedule time using the Scheduler!

Oh… and we have a special guest joining us on Day 1 that you won’t want to miss.

 3. Teatime with Doge

Doge with Ethereum Hat

Meet Kabo-chan.

She’s fluffy, cute, and you may know her better as the real-life face of Doge. That’s right, the pup that started it all is here in the fur and will be giving you the latest on breakthrough state-channel research. Ok, we’re kidding about that last part.

Join Kabo-chan on Day 1 (October 8th) at 2:30PM for teatime and selfies.

d. Food is an experience, too!

Attendees will have a few more options this year when it comes to the menu.

Pastries and coffee with a local flare will be around each morning, and light snacks (+coffee and tea) are provided throughout the day. For lunch, everyone will be provided with a stack of vouchers at registration which can be used to get yourself a lunch at any of the locations listed here.

In total, we have nearly 30 dining options in and around the venue to let everyone find and pick their favorites each day.

IV. Schedule & Devcon App

a. Agenda

This year’s schedule is available in multiple formats. The official online release is live at

For more information, see our full post on the schedule here.

*If you need a hand with finding a room (or anything else at Devcon), keep an eye out for the dark-red staff shirts worn by volunteers and staff on the Devcon team.

b. The Devcon App

An on-the-go schedule is available through our Devcon mobile app. Check it out below!

Through the app, you’ll be able to save your most anticipated talks to a personalized schedule, search for and learn about speakers by name, receive live Devcon updates, connect and share schedules with friends and more! We’d like to send a special thank you to Ackee for their work on this year’s app. (for iOS) (for android)

c. HackMD

This year we will be offering a collaborative note-taking platform called HackMD for every Devcon5 talk!

Contribute notes to the HackMD notebook during each and every talk that you attend, and if you miss any talks, check HackMD for notes and feedback from others on what you missed.

The Devcon5 notebook can found here, with separate notes for each talk.

d. After & Side Events

Aside from Devcon events and activities, there is a lot happening in Osaka, and independent groups across the Ethereum ecosystem have been at work to aggregate side events, afterparties and other opportunities for all of us to take part in. We applaud their work and dedication, and can’t wait to see everyone at a few of the events that they’re helping to make happen. Check out their pages below.

V. Cultural Tips

First time in Japan? Don’t smoke outside! Here’s some advice about social customs that may be new to you, like common phrases, information on tipping culture, and more.

a. Do’s

  • Always have cash on hand. There are many stores, restaurants and taxis only accept cash. ATMs are located in every convenience store

  • If you forget something at home, head to a convenience store (7-11, Family Mart and Lawson) and you can find most must-have items there

  • You can drink the tap water

  • On public transportation waiting for trains or bus, line up a queue in an orderly way and do not cut in, Japanese people really care for their queues

b. Don’ts 

  • Do not tip in restaurants (no tipping culture)

  • Do not throw away trash on the street

  • Do not drink or smoke on the street (designated areas only)

  • Do not make phone calls while on public transportation

  • Do not speak loudly on public transportation

c. Local tips 

  • Explore a variety of delicious local foods in Dotonbori area such as Takoyaki, Okonomiyaki, Kushi-age

  • Japan’s official travel app is useful to discover fun spots and to get alert notifications in case of natural disasters

  • There are often women-only train cars if needed (written in English on the side of the train)

  • If you do not want to carry around heavy suitcases, there is a conference luggage storage service provided by ecbo cloak

  • For further information, explore with Osaka Info

d. Useful phrases

Remember some useful Japanese phrases (most Japanese people do not speak English but they are usually helpful to answer with some vocabulary)

  • Hello – Konichiwa (こんにちは)

  • Thank you – Arigatou (ありがとう)

  • Excuse me – Sumimasen (すみません)

  • Please – Onegai shimasu (おねがいします)

  • Yes – Hai (はい)

  • No – Iie (いいえ)

  • I’m sorry – Gomen nasai (ごめんなさい)

  • I don’t understand – Wakarimasen (わかりません)

  • Goodbye – Sayounara  (さようなら)

  • Good night – Oyasumi (おやすみ)

  • I don’t understand Japanese – Nihongo wakarimasen (にほんごわかりません)

  • What’s this? – Kore ha nandesuka? (これはなんですか?)

  • Where is _? – _ ha doko desuka? (____はどこですか?)

  • Where is the restroom (toilet)t? – Toilet ha doko desuka? (トイレはどこですか?)

  • Do you accept credit cards? – Credit card ha tsukae masuka ? (クレジットカードはつかえますか?)

  • I am _ . – Watashi ha __ desu (わたしは____です)

  • Help! – Tasukete kudasai (たすけてください)

VI. Other things to know

a. Safety First!

1. Emergency numbers:

  • 119 – Ambulance, fire, emergency rescue

  • 110 – Police

  • 118 – Sea rescue (for those of you that insist on making boat parties happen)

  • “I am at  (place name)” = Watashi ha (place name) ni imasu

  • “It’s an emergency! Please send ambulance” = Kinkyu desu! Kyu-kyu-sha wo onegai shimasu.

We will have medical staff at the venue on-site in case of emergencies.

b. Code of Conduct

Please remember to abide by the Code of Conduct, which is available here:

For any questions regarding the Code of Conduct, or to make a report/file a complaint, contact a staff member or a volunteer.

c. Stay up to date with the latest news!

Join the Official Devcon Announcements Telegram channel:

First time at Devcon? Join the n00bs channel:

Follow Deva on Twitter:

Stay Tuned to (and enable) push notifications in the Devcon App:

The official website for Devcon5 is

That’s it! Remember to bookmark this page for quick access to all things Devcon, and welcome to Osaka.

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Allocation Update Q3 2022 | Ethereum Foundation Blog



Allocation Update Q3 2022 | Ethereum Foundation Blog

Community & education Crowdsourcing Technical Ethereum Content in Taipei Nic Lin Open call for technical papers from Taipei’s Ethereum community. Community & education Crypto Economics Security Conference Berkeley Center for Responsible, Decentralized Intelligence The Crypto Economics Security Conference (CESC) bringing together researchers and practitioners to discuss the most recent developments in web3. Community & education Cryptoversidad Educational content on Ethereum blockchain fundamentals in Spanish. Community & education Cypher Plato BAM Cypher_plato Open online Spanish course teaching junior developers the basic technical knowledge and skills needed to contribute to the Ethereum ecosystem in Latin America, created by a crypto study group from Platohedro. Community & education Devcon Scholarships Ethereum Caracas Scholarships to attend and support Devcon VI for key Ethereum community members in Venezuela or Venezuelans based in Latin America. Community & education DreamDAO Explorers Program DreamDAO Support for their two-month internship program called the Dream DAO Explorers Progra, for 15 to 20 year olds seeking to be and build the future of web3 x social impact. Community & education DWeb Camp Internet Archive Five-day event with the purpose of tackling real-world challenges facing web3 and co-creating decentralized technologies of the future. Community & education Espacio Cripto Community engagement efforts encouraging Latin American builders to attend Devcon VI. Community & education ETHAnglia Meetup Meetup to raise funds for scholarships to Devcon VI and celebrate the success of ETHAnglia’s Zero to Web3 Bootcamp and scholarships. Community & education ETHBerlin³ Department of Decentralization Three-day hackathon in Berlin, Germany focusing on topics such as privacy and security, sustainability, and public goods. Community & education ETHBrno² UTXO Foundation Open community hackathon focusing on privacy and security held in Brno, Czech Republic across three days. Community & education ETH Gathering Two-day conference hosted in Barcelona, Spain with programming divided according to four clusters: security, DeFi, DAOs, and data. Community & education ETHLatam @ Quito Ethereum Ecuador Event in Quito, Ecuador covering topics such as smart contracts, decentralized wallets, and The Merge. Community & education ETHMalaysia Conference and hackathon targeted towards Southeast Asia’s web3 community organized in Kuala Lumpur, Malaysia across three days. Community & education ETHMedellín One week of distributed events happening around Medellín, Colombia with a central co-working space for the community to gather and collaborate after Devcon VI. Community & education EthPanama Three-day conference and hackathon in Panama City, Panama to build a hub for regional projects and a gateway for local and international organizations to connect. Community & education ETHPlanet Support for community initiatives in China including organizing conferences and hackathons, connecting academic researchers, and encouraging open-source communities to experiment on Ethereum. Community & education ETHSafari Week-long conference and hackathon in Kilifi, Kenya to showcase innovation around the region and bridge the gap between the global and African Ethereum ecosystem. Community & education Ethereum Santiago Event organized in Santiago, Chile with talks and panel discussions on the first day and a developer bootcamp on the second day. Community & education EthereumSP Ethereum Brasil Two-day hackathon, a programming marathon where participants can learn and exchange experiences about web3-related projects. Community & education Ethereum Eje Cafetero Event Support Support for Ethereum Eje Cafetero members to attend and deliver Ethereum-related talks at FESTIC and EAM University‘s Engineer Day. Community & education Ethereum Lima Day A full day of talks about Ethereum and its applications held in Lima, Peru. Community & education Exploration of Non-Profit Organizations’ Use of Ethereum TIFF Research on current and potential future uses of Ethereum to enhance the productivity of non-profit organizations, including the possible risks and benefits of these uses. Community & education Hackers Congress Parallel Polis Congress focusing on freedom and cryptography, decentralized economics and cryptocurrencies, political art and hacking, and science and technology organized in Prague over three days. Community & education JAMHacks 6 Hackathon targeting high school students in North America that includes beginner-friendly workshops and mentors to guide first-time hackers. Community & education Kyiv Tech Summit Hackathon and conference hosted in Kyiv, Ukraine, aiming to solve tangible, on-the-ground issues to aid the Ukrainian people in their fight for freedom. Community & education Merge Meetups Grants Round Grants round to fund The Merge meetups and watch parties around the globe with a focus on education. Community & education NextStep HackAlphaX Virtual, global hackathon for students aged 10 to 21 with introductory workshops and daily hacker hangouts. Community & education Node Operator Documentation Documentation teaching smaller node operators running staking pools how to secure their nodes and run them efficiently. Community & education Quadratic Funding for Taiwan ZKP Hackathon ZK Playground Running one quadratic funding round for each stage of a two-stage zero-knowledge (ZK) proofs hackathon—the first round involves creating a project proposal, and the second round involves developing a proof-of-concept for the project. Community & education Retrox Fernando Almansa, Jan Ole Ernst, Jessica Pointing, Konrad Kopp, and Kyle J. Duffy Working to explore and implement a fully on-chain, open-source protocol, focused on public goods funding by developing a variety of voting logics and a highly variable platform for fund disbursement. Community & education Solidity Bootcamp Blockdemy Three-week program educating participants in Spanish on Solidity development, with the registration fee waived for 50 to 100 women. Community & education Staking Operator Documentation Kiln Technical documentation for staking operators published in the form of blogposts based on Kiln’s experience of being a node operator. Community & education web3beach Meetups Meetups in Utila, Honduras combining conservation efforts with web3 education. Community & education Web3 Lagos Conference Web3Bridge Three-day conference in Lagos, Nigeria covering topics such as The Merge, community onboarding, and Nigeria’s developer ecosystem. Community & education Zero to Product Bootcamp Ethereum Antioquia and Blockchain eX Five workshops providing developers with the fundamentals needed to build a web3 product from start to finish. Community & education zkSummit 8 Event consisting of talks and workshops about the latest in ZK research, SNARKs, STARKs, cryptographic primitives, privacy, and mathematics. Community & education #aPRENDOcripto Proof of Integrity Educational workshops on crypto basics, web3 onboarding, and personal finance, hosted in low socioeconomic neighborhoods in Buenos Aires, Argentina. Consensus layer Improvements Bitfly Improving usability of, an open-source Ethereum mainnet explorer that is accessible to non-technical users and provides open-source mobile apps on iOS and Android for validator monitoring. Consensus layer Data Availability Sampling Networking RFP ChainSafe Researching and designing a Data Availability Sampling (DAS) solution that will include holistic analyses and experimental results, an architecture proposal, a formal specification, and a repository containing a proof-of-concept prototype. Consensus layer Data Availability Sampling Networking RFP DataHop Designing and analyzing a scalable, secure, and efficient peer-to-peer network solution that is able to fulfil DAS requirements. Consensus layer Data Availability Sampling Networking RFP Qi Zhou Completing the prototype of DAS corrupted samples/proofs detection and simulation for matrix reconstruction. Consensus layer Formal Verification of Safety Properties of Altair Fork Choice Implementation ConsenSys R&D (Distributed Protocols Formal Verification Team) Review and formal verification of the safety of the fork choice implementation in Ethereum proof-of-stake consensus specifications to catch edge cases and bugs. Consensus layer Lodestar Consensus Client ChainSafe Continued development of the Lodestar consensus client, with a focus on light client R&D and JavaScript ecosystem tooling. Consensus layer Tse Lab Stanford Center for Blockchain Research Support to research key areas for improvement on data availability techniques for blockchains. Cryptography & zero knowledge proofs BLS Website Update Improving the website of BLS wallet, a layer 2 smart contract wallet using BLS signatures and transaction aggregation to reduce gas costs. Cryptography & zero knowledge proofs Enhancing MEV Resistance Designing a new commit-reveal scheme with improved proposer builder separation that will better resist maximal extractable value (MEV) and benefit users, proposers, and builders. Cryptography & zero knowledge proofs Mu Methods Research for and MVP implementation of an Ethereum-native browser client wallet that utilizes Shamir’s secret sharing for social key recovery. 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Cryptography & zero knowledge proofs RSA Verification Circuit in halo2 Sora Suegami Development of an RSA verification circuit using the halo2 library, allowing developers to write circuits to verify RSA-based cryptographic schemes such as RSA signature, RSA accumulator, and verifiable delay function. Cryptography & zero knowledge proofs TAZ Dapp Colleen Rose, Danilo Kim, Falco Rodenburg, Lee Poettcker, and Rich Warner Dapp enabling users to explore the possibilities of what can be built with Semaphore, designed for the Temporary Anonymous Zone Community Hub at Devcon VI. Cryptography & zero knowledge proofs ZK Gadgets for ZK Eigen Trust Özgür Armanc Yigit Building, testing the edge cases of, and optimizing gadgets for ZK Eigen Trust—a reputation management algorithm for peer-to-peer networks, using the halo2 proving system and the libp2p peer-to-peer networking framework. Cryptography & zero knowledge proofs Zkopru Layer 2 scaling solution for private transactions using zk-SNARK and optimistic rollups. Cryptography & zero knowledge proofs zkRSA Pierre Daix-Moreux Development of a proof-of-concept for an application that will allow users to prove they hold a valid document according to an RSA signature and a public key. Cryptography & zero knowledge proofs 0xPARC Foundation Support for 0xPARC Foundation, an organization promoting application-level innovation in areas such as applied crypto R&D, open-source tools and infrastructure, and education and ecosystem development. Developer experience & tooling BuidlGuidl Support for BuidlGuidl, a developer community and series of educational initiatives focused on onboarding developers to Ethereum. Developer experience & tooling Exploit Database Domantas Pelaitis, Ivan Miragaya, Jogundas Armaitis, and Matas Povilauskas Open-source, comprehensive database of past exploits that the community can contribute to, which will also function as an educational learning tool. Developer experience & tooling Tai Hung Ying Series of articles written in traditional Chinese and Youtube videos on Ethereum fundamentals, Solidity, and smart contracts. Developer experience & tooling SolQL Support for SolQL to further develop their codebase with additional abstractions and tests, produce documentation, and engage in developer outreach for feedback on further functionalities. Developer experience & tooling TrueBlocks TrueBlocks local-first and lightweight index of Ethereum blockchain data. Work will tackle various improvements, such as porting their code to Go, completing an IPFS shareable index, and exploring layer 2 indexing. Developer experience & tooling Web3j Web3 Labs Continued development and maintenance of Web3j, a lightweight Java and Android library for integration with Ethereum clients. Developer experience & tooling web3swift Anton Grigorev, Petr Korolev, and Yaroslav Full-featured native iOS/macOS library that provides web3 functionality in Swift with native ABI parsing and smart contract interactions on the Ethereum network. General research Game Theory Backend for Act 20squares Toolchain for analyzing smart contract systems using compositional games theory, including a tool for decompiling EVM bytecode into the Act specification language and an open games backend for Act. An end-to-end example of MEV analysis will also be provided. Indirect funding Gitcoin GR15 DeSci Side Round Gitcoin Matching pool funding for Gitcoin’s GR15 DeSci Side Round, which focused on projects reimagining the incentives, culture, and infrastructure for research using web3 tools and technology. Indirect funding Quadratic Funding at Devcon VI Matching pool funding for the quadratic funding round run during Devcon VI to benefit projects in the Latin American community. Layer 2 Pheasant Network Insights on the development and research challenges around optimistic bridges. Doing a deep dive into how these problems are being resolved by different projects in the space. Other European Crypto Initiative (EUCI) Support for the EUCI, which advocates for and contributes to the development of EU regulation that favors open, permissionless, decentralized applications leveraging blockchain technology.

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Merge Data Challenge Results | Ethereum Foundation Blog



Merge Data Challenge Results | Ethereum Foundation Blog

The Ethereum Foundation is excited to announce the winners of the Merge Data Challenge 🐼.

The challenge ran for ~9 weeks surrounding the Merge, allowing for data analysts to gather and review information both before and after the big event. Participants submitted a treasure trove of data and analysis in 45(!) different blog posts.

Enjoy combing through the many insights and, as everything is open source, feel free to open things up and extend/modify the analysis!


Prizes are divided into three tiers, based on the overall quality, scope, extensibility, and usefulness to the community.

Gold ($30k prize) 🥇

Silver ($10k prize) 🥈

Bronze ($2.5k prize) 🥉

Looking Forward

The Merge Data Challenge produced excellent new tools, analyses, and visualizations. That said, there is ongoing work to do in monitoring and understanding Ethereum’s proof-of-stake network — especially in the Beacon Chain consensus-layer.

If you’re interested in digging deeper or productionizing the tools and techniques found in these submissions, please consider applying to the Ecosystem Support Program!

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Ropsten Shutdown Announcement | Ethereum Foundation Blog



Ropsten Shutdown Announcement | Ethereum Foundation Blog

As previously announced, the Ropsten network has been deprecated and will be shut down in the coming weeks. Over the past few months, infrastructure providers have gradually stopped supporting the network and validator participation rates have been steadily declining.

The vast majority of remaining validator nodes will be shut down during the December 15-31, 2022 period. After this, Ropsten will no longer be supported by client, testing or infrastructure teams.

As a reminder, the next testnet to be sunset is Rinkeby. The network will be live until mid-2023 to give users and application developers the chance to migrate to either Goerli or Sepolia. That said, Rinkeby does not support The Merge, nor will it support future network upgrades. It is no longer a feature-equivalent replica of the Ethereum mainnet.

The Merge and legacy testnet deprecations have provided an opportunity for the Ethereum community to rethink its broader approach to test networks. Proposals around purpose-specific networks for stakers vs. developers, end-of-life norms for testnets and more are being discussed on Ethereum Magicians and in community calls. If you have strong opinions about the future of Ethereum testnets, now is the time to voice them!

Cover image by Micael Widell

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