Connect with us


Devcon: Hacia Colombia en 2021



Devcon: Hacia Colombia en 2021

Queridos Amigos,

In our most recent update, we outlined what Devcon is all about and spoke to our renewed focus on growing the Ethereum ecosystem. Part of that focus is on making sure that, for all types of attendees, the next Devcon is all that we dream for it to be and more. For details on those goals and beyond, please read the full post here! Today, we’re going to tackle our site-selection and timing, along with more on what’s ahead for this year and beyond.

🥁 Our Selection 🥁

Getting right to it, we’re excited and proud to announce that the next edition of Devcon will take place in Bogotá, Colombia at the beautiful Agora Bogotá Convention Center in 2021!

The City

We can’t wait for the entire ecosystem to meet Bogotá; the capital city of Colombia and one of South America’s most lively and popular cities. Full of culture, art, history, flavors, opportunities, and unique experiences, Bogotá is the ideal city to host Devcon and our entire community!

In Colombia, you’ll find a consistent and comfortable climate year-round, and diverse destinations that cater to all tastes; mountains, rivers, and stunning cities like Medellín, Cali, Cartagena and of course Bogotá. It’s a rare find, and a country with a stable economy and rhythm running through its veins.

The Venue

Oh, and the venue? Agora Bogotá is a newly constructed and state-of-the-art center that we hope will be, by far, the best venue to ever host Devcon. Located just minutes from both Bogotá’s El Dorado International Airport and from the historic Santa Fe and Candelaria neighborhoods of Colombia’s capital city, Agora presented us with an ideally-located and fully modern conference center that is built to handle the catering, WiFi, meeting-space and other needs of an event like Devcon.

The Process

The Ethereum ecosystem’s preference clearly aligned around a strong demand for an event in South America, and a very deserving request for a venue capable of welcoming and serving this large and growing gathering.

The Devcon 6 venue search began prior to Devcon 5 with an understanding that more time would lead to a smoother experience for all attendees. After both listening to community feedback and extensively reviewing options and many factors in over 10 cities, we’re confident that in Bogotá we’ve found both a region and venue capable of accomplishing every goal laid out for this year’s Devcon. Moreover, we’ve found serious potential to grow a significant community presence.

⏱ When, when, and what ’til then? ⏱

So here’s the plan:

1. Doing it right

This year has been trying for us all, and we’re as eager as many of you are to reunite, but we must also ensure that the event is done right by everyone in this community.

That means going bigger, and of course better than ever. We put in time to make sure that we could come together and grow our global ecosystem and that of a region that’s new to much of the Ethereum community, and that’s what we’re going to do.

Simply put, Devcon participation should neither be limited to a few willing travelers, nor dependent on hopeful changes to gathering limits. But our planning is ongoing, so we’ll confidently get together later next year while the drumbeat grows a little louder, and a firm date will be announced soon.

So what’s ahead in 2020? The right answer is often the most obvious: Decentralize.

2. Decentralize 2020

We’re proud to announce that, while our Devcon team remains firmly focused on delivering on dc⟠vi in 2021, *EF’s larger mission to continue supporting ecosystem activities will move forward too: we’re already hearing about large events on the way for this fall, and we’ll be lending our support to many in the community that are now stepping up.

Want to host something in your community, region, or online? Let us know here and our team will be in touch to learn more.

We’ll help to promote and potentially coordinate these efforts into something as unique as the times we’re living through. In short, it’s our hope that we can all come together as different teams, regions, offices and Ethereum users for a set of worldwide and independent events this fall.

3. No half-measures

Let’s be frank: We won’t simply serve up the least bad contingency or substitute option for the community and call it “Devcon” when we’ve just pledged to do things right.

Lockdowns are being lifted in many regions for the first time, but it will be a while longer before local leaders lift travel restrictions to the extent needed for an internationally-attended, large-scale event like Devcon. We’ve also considered what’s best for the many speakers, volunteers and attendees that deserve confident decision-making before preparing for long journeys.

So rather than asking you all to continue to wait with bated breath or delaying plans by a few short months, we’re going to lengthen our lead time and super-size our ongoing efforts around Devcon 6 in 2021. This can be done staying true to Ethereum’s roots with ecosystem-driven events in 2020, and without defaulting to a simple virtual event.

🏟 Growing a Community 🏟

Devcon is meaningful to so many people and in many unique ways, and we’re thrilled to bring the event to South America for the first time. This event represents many things to the many different types of attendees that come together to be there.

It is a homecoming for many active participants in the world of Ethereum. It is a large stage on which to present the latest groundbreaking ideas and achievements for the builders that make Ethereum what it is and what it will become. And to all of us, Devcon is an opportunity to bring new faces, places and entire communities into the fold.

In Bogotá, we have already crossed paths with so many people and groups that are eager to meet more of the Ethereum community and to welcome Devcon for the first time. The pieces are in place to accomplish an important goal around community growth and assistance set out for Devcon. From builders, to educational entities, local business leaders, decision-makers and more, we’re already meeting and working with the people of Bogotá, Colombia, and South America to help make real-world use of Ethereum’s technology and to further it.

Devcon week is more than just one event, but a diverse set of meetups, sub-conferences and more that highlight the best of our ecosystem. Next year, we’re looking forward to adding some local flare, integration with other events, local businesses, and more.

More to come

With the extra lead-time, we’re excited to build bigger and better than ever, to reveal simpler processes for attendees, and to see far more integration with the local community.

In coming posts, we’ll cover more about the event date, the city and our recommendations for your stay and for getting around, our support for other 2020 events, the EF Scholars Program and more. Until then, keep posted to for more, stay safe, and thank you for your patience while we worked to figure out the best path forward. See you all soon!


Source link

Continue Reading
Click to comment

Leave a Reply

Your email address will not be published.


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.

Source link

Continue Reading


eth2 quick update | Ethereum Foundation Blog



Ethereum Muir Glacier Upgrade Announcement

Although the internet has been more quiet than usual, we’ve been super busy hacking away on eth2! Between Devcon5 and keeping our heads down to work, it seems we’ve left the community in the dark on a couple of items. Here’s a quick update to fill in the gaps.

Deposit Contract

Although the deposit contract has been written, tested, and formally verified, we are working to allow the BLS standardization to stablize prior to launch. One goal of eth2 is to be easily interoperable with other blockchains and systems in general, and to that end, we do not want our BLS signatures to go the way of keccak (whoops!).

The BLS Standard (BLS Signature, Hash to Curve) has reached a point of stability recently with a number of blockchain teams on board (Eth2, Chia, Filecoin, Algorand, etc). There is an IETF meeting in November at which we expect the draft to be even more cemented. That said, official standards can take quite a while so those involved plan to signal public support for the draft and have a “blockchain agreement” to use the standard as drafted regardless of its final form in IETF. That way, if it becomes the keccak of signatures, we won’t be there alone. 🙂

Fortunately, the deposit contract does not need to be put into production until we near Phase 0 launch, so this focus on standardization is not expected to have any effect on the Phase 0 launch date.

Eth2 Testnets

If you follow ethresearch, the specs repo, or any of the many workshops at Devcon, we have altered the sharding proposal in such a way to greatly improve developer and user experience — cross-shard communication between all shards at every slot. To facilitate this improved design, we have to modify the Phase 0 spec a bit. To do this with limited disruption to Phase 0 development and testnets, we’ve gone the simplifying route — the removal of crosslinks entirely from Phase 0 (they were stubbed anyway). This change is coded and under final review here and is expected to be released for development within the week.

We expect multi-client public testnets to launch soon after this simplifying change is completed, for this update to aid Phase 0’s progress to mainnet, and ultimately to make Phases 1 and 2 easier to ship.

Eth2 testnets are coming! Individual clients are in the process of spinning on some nets for both private and public consumption. Many clients are just getting their eth1-to-eth2 machinery in place so these single-client testnets are useful in initially testing that component. On these nets there will be some limited cross-client testing, but will be largely stable due to having a majority single-client.

Once clients adequately test larger single-client nets and once they have time to incorporate the Phase 0 changes, we will be full speed ahead on public multi-client nets. We’re just as excited about this as you are and will be publishing more info on participation (staking your eth) in both testnets and mainnet shortly. Casper is indeed coming.

Source link

Continue Reading


eth2 quick update no. 2



eth2 quick update no. 2

Welcome to the second installment of eth2 quick update.


  • Spec release of v0.9.0 — Tonkatsu to ensure Phase 0 development can continue unimpeded.
  • Work continues in ironing out the details of the modified Phase 1 proposal.
  • Quiet client development focused on eth1 -> eth2 infrastructure, general hardening for production, and optimizations.

Tonkatsu Release

As promised on the latest eth2 call, we pushed things forward to release v0.9.0 release — Tonkatsu. This release is largely simplifying with respect to Phase 0. The goal here is to remove any portions of Phase 0 that are opinionated about Phase 1 to ensure Phase 0 development can continue unimpeded regardless of the work-in-progress modified sharding proposal.

Read the release notes for more info.

Ongoing Phase 1 Redesign

As mentioned in the last eth2 quick update, we are almost certainly taking a new and simpler direction for Phase 1. The new sharding proposal facilitates “crosslinks” for all shards at each slot. This drastically simplifies communication between shards and will result in a much better and simpler developer/user experience come Phase 2.

Previous cross-shard communication (approximate)


New shard design proposal

To support this new proposal, the total shard count to start must be reduced from 1024 to the new estimate of 64, with the intention to scale up the number of shards over time (~10 years) as standard resources available to consumer laptops increases. The following are the primary reasons for the requisite reduction in total shards:

  • Each shard induces an attestation load on the network and beacon chain at each slot rather than at each epoch
  • Each committee must be of a minimum safe number of validators. If there are too many committees per epoch due to high shard count, then there couldn’t possibly be enough 32-ETH validators to safely allocate enough to each committee

[EDIT: the following paragraph was added after initial release of the blog post in response to some discussion on reddit]

To achieve a similar scalability as the previous proposal, target shard block sizes are being increased 8x, from 16kB to 128kB. This provides the system with greater than 1 MB/s of data availability which synergizes well with promising L2 schemes such as ZKRollup and OVM. The network safety of these larger shard block sizes are justified by recent experimental research done on the existing Ethereum network.

Much of the EF research team’s focus in the past few weeks has been around vetting and ironing out the details of this new proposal. For more details, check out the work-in-progress PR or some of the Phase 1 issues.

Quiet, yet effective client development

Eth2 clients continue to quietly develop. As discussed on the latest eth2 call, effort is being put into handling deposits from eth1, generally hardening clients for production, optimization of state transition and BLS implementations, cross-client fuzzing, networking monitoring tooling, and more! Larger single client testnets are in the works as well as continued cross-client experimentation.

Now that v0.9.0 has been released, clients are updating their state transition logic to pass the new test vectors and are introducing the simple attestation aggregation strategy.

Source link

Continue Reading