Harry Papacharissiou
@pappas9999
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Head of DevRel @Chainlink Labs | pappas99.lens | 🇦🇺🇬🇷 | Views are my own
Joined June 2014
Today I was surprised with the most based birthday cake 🎂
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After initially joining the Chainlink Labs team part-time in October, I've now taken the ultimate LINK pill and will be focusing all of my working time on helping to build #Chainlink!
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Just deployed and interacted with my first ever cross-chain smart contract. ⛓️🌉⛓️. After years of having a single chain mental model when building smart contracts, it's pretty mind blowing when you see contracts across chains talk to eachother in a trust minimized way.
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$LINK Gas Station - A design pattern that lets you interact with your Chainlinked Smart Contracts without needing to pay LINK or ETH/GAS. Let someone else pay it, and then use the Chainlink Decentralized Price Reference data to calculate your invoice in $
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So now that the word is officially out, what exactly is #Chainlink Functions, how did it come about, and why is it so powerful? I'll try break it down so that even non developers can understand 🧵.
Tomorrow, we'll go behind the scenes of Chainlink Functions on the latest #Chainlinked Twitter Spaces. Find out:. -Why Functions was created.-Key features for builders.-New use case possibilities. Set a reminder ⏰ ⬇️.
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#Tesla External Adapter now up on the @chainlinkmarket. There's about 20 API endpoints still to be added to it in case someone wants to contribute, eg set speed limit, start/stop charging, flash lights etc #Chainlink .
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Why use #Chainlink CCIP when there's multiple other cross-chain protocols? It's quite simple really:. - Only solution with 5 levels of cross-chain security ✅.- Hasn't been exploited for $100s of millions✅.- Conflict of interest free infrastructure ✅.- Actually decentralized
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Last month, we taught #Solidity, Ethereum and #Chainlink development to over 1000 devs in our first coding bootcamp. Developers are now able to access the content on-demand, with more events planned for the future, including community-run bootcamps in other languages!.
The first Smart Contract Developer Bootcamp gave devs worldwide an intro to smart contracts & how to connect #dApps to secure off-chain services with #Chainlink. Access the bootcamp on-demand today to replay sessions or start your journey at your own pace.
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We need more fun events & experiences for devs at crypto conferences. I really love the concept of Developer Speedrunning. think e-sports but instead of a game its devs competing against each other in knock-out rounds to finish a Solidity code challenge. Was so much fun to watch!
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Have officially been full time at @chainlinklabs a year now, what a crazy amazing ride it's been! So thankful to be able to work with so many amazing people, and interact with such a great community. Have a feeling this next year is going to be even more insane.
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@BandProtocol At this stage there seems to be just too many coincidences:. - Domain/IP coincidence.- Website metadata & header similarities.- Hearthstone connection.- Fast Binance listing + deleted CZ tweets .- BAND CTO liking sushi tweets.- Why move to new hosting/IP if nothing to hide???.
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Web3 isn't a fad. It's not going away. The passion and conviction of the people building in this space is unlike anything I've seen. No-one can stop what's coming
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#Chainlink CCIP is officially live and open right now for developers to use on 5 different testnets, Ethereum Sepolia, Avalanche, Polygon, Optimism and Arbitrum. Check out the docs 👉 (1/4) continued. 👇.
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495 projects submitted to the Spring 2023 #Chainlink hackathon, our biggest one to date! Over the next 2 weeks, the team will be going through & judging all the projects, & sponsors will be judging for all the partner bounties. Project gallery is live 👀👇.
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March 2023 marks 2 years in the DevRel team at #Chainlink Labs, what a crazy and amazing ride it’s been! Still deep down the crypto rabbit hole, still LINK pilled, and looking forward to all the exciting things on the horizon for Chainlink and the adoption of Web3. OK;LG.
After initially joining the Chainlink Labs team part-time in October, I've now taken the ultimate LINK pill and will be focusing all of my working time on helping to build #Chainlink!
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All the crypto DevRels rolling in to Bangkok for @EFDevcon, ready to smash out the last major conference of the season
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The CCIP SDK just dropped! Now you can easily integrate CCIP to your frontend, and add a fully featured Chainlink powered bridge to your app that can be styled to match your app design. Chainlink bringing the developer joy 🌟.
The Chainlink CCIP SDK is now live and ready to turbocharge cross-chain development:. ⬡ Integrate CCIP in just a few lines of code.⬡ Use developer tools you already know.⬡ Leverage Chainlink’s defense-in-depth security
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Absolutely thrilled to have our 'Link My Ride' submission win first place prize in the #chainlink #hackathon with over 70 submissions and hundreds of developers enter. Thanks to @mdurkin92 and @DunkenKBliths for helping produce such a great project!.
Thanks to all #Chainlink Hackathon participants and congrats to the winners! Devs showcased a wide range of new Chainlink functions:.- P2P car rental platform using a @Tesla API.- Yield farming RPG game.- AMM insurance market.- decentralized library.& more
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⏱️ FROM 10+ MINUTES TO < 1 SECOND ⏱️. Together with the release of CCIP GA, we're excited to share a new developer tool to help you build and iterate with CCIP much faster. The CCIP Simulator allows you to build your CCIP enabled cross-chain dApp on a local Hardhat or Foundry.
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$LINK My Ride, a decentralized Tesla Vehicle Rental Platform. Also the worlds first integration of a Smart Contract to a Tesla without requiring the use of specialized hardware connected to the car. Co-contributors: @mdurkin92 & @DunkenKBliths .
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If your cross-chain protocol doesn't have privacy-preserving capabilities to maintain data confidentiality, data integrity, and support regulatory compliance, it will never be adopted anywhere other than the onchain crypto casino. GG✌️.
We're excited to announce CCIP Private Transactions, enabling financial institutions to connect private blockchains to the multi-chain economy. Australia and New Zealand Banking Group (ANZ) will be among the first financial institutions to pilot the capability for cross-chain
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Thrilled to have my $LINK Gas Station submission selected as the best overall Chainlink winner in the @unitize2020 Virtual Hackathon. Thanks to @Smart_Contract & @gitcoin for sponsoring the event, and congratulations to all the other winners 🙌🙏🥳🍾.
#Chainlink winners from the @unitize2020 Hackathon showcased a wide variety of creativity, ranging from a meta transaction protocol for enterprises & smart contract two-factor authentication to a time-locked savings accounts & blockchain-based Tetris.
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"#Chainlink is not just about data, it's about an oracle network. and oracle networks are actually responsible for everything that blockchains are not responsible for"
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The start of March marks my 3-year journey with the #Chainlink Labs DevRel team. What an incredible ride it's been!🏎️. We've come a long way since early 2021, when it was just Data Feeds & VRF live, & the DevRel team was just 4 people. Excited for the next 3 years!.
After initially joining the Chainlink Labs team part-time in October, I've now taken the ultimate LINK pill and will be focusing all of my working time on helping to build #Chainlink!
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I’m seeing a lot of engineers & employees leaving web2 companies, & startups to join web3 companies, platforms, DAOs. but I'm hardly seeing anyone leave web3 to go join a web2 company. Web3 is like Hotel California. you can check out anytime you like, but you can never leave 😂.
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The #SmartCon22 #Chainlink Labs Developer Advocate team. From Tuesday's Developer Day, to us all presenting @ the main conference & meeting with the developer community, to today's Hacker House, we absolutely killed it! Could not be more proud to work with such an amazing team 💙
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Forget the airdrop farmers. Looking at on-chain data, just under 1.2k developers have been building and experimenting with #Chainlink CCIP on testnets the past 3 months.
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One of the biggest developer marketing problems in the web3 infra space is that (almost) everyone is marketing towards the tiny fraction of web3 developers, and creating a psychological separation of being a web3 or web2 developer by using jargon like EVM, L2, ZK, DA, oracle etc
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#chainlink and #blockchain developers, we encourage you to play around with our starter kits and build a chainlinked smart contract, no matter how basic or complex! In a month we'll host a livestream with some of you, showcasing your projects and discuss building with the kits 🛠️.
We’re excited to launch the Starter Kit Showcase, a month-long initiative for developers to share projects that make use of #Chainlink Starter Kits on our Discord & Twitter with the hashtag #StarterKitShowcase. At the end, we'll showcase the best projects!
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Approach life with the same confidence as a web3 protocol that uses the phrase "battle-tested" in their marketing after being exploited for a few hundred million $.
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Pretty sure we broke all Web3 records earlier today, over 1k developers tuned in live to the first session of our #Chainlink Bootcamp (English sessions) with @thergdev and @AncientVeil. If you missed it, catch up on the session here 👇
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Reminder, there's no other DeFi data feeds that have the track record of #Chainlink, flawlessly securing the majority of DeFi for almost half a decade, with the utmost dedication to security & reliability, even during black swan events & huge gas spikes. Unmatched & Unparalleled
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What a huge year 2021 has been! Since joining @chainlinklabs end of Q1, I delivered 26 live presentations across various events, in-person meetups, hackathons and developer bootcamps, created the #Chainlink @HardhatHQ starter kit, plus various other projects & initiatives 1/3.
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This is special because it's #Chainlink's first ever integration on a non EVM-chain, & the first live deployment of the new OCR2 Aggregators! I'm especially proud of this one, and look forward to continuing to help build the Chainlink ecosystem on Solana. OK;LFG 🚀.
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brb, about to teach smart contracts, Solidity, and Chainlink to a few hundred devs #chainlink #developer_bootcamp ☕️
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Couldn't be more proud to work with such a great team. The Smartcon23 #Chainlink Labs DevRel team members celebrating success with Chief Product Officer @kelmoujahid
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Web3 companies will literally give talks at conferences titled 'Onboarding the next million developers to Web3', but when you go to their site landing page, the headline has jargon like 'on-chain endpoint', 'ZK Coprocessor', 'Modular Data Availability Network', 'EVM Rollup' etc👌.
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Actual footage of the "Oracle-free DeFi" narrative disappearing from Crypto-Twitter after oracles once again saved DeFi from getting nuked yesterday
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So much exceptional talent and high-performing people in one team. The #Chainlink Labs 2024 #SmartCon and Hacker House onsite DevRel cohort celebrating a successful week 🍾
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PROCESS COMPLETED! Over 400 developers & enthusiasts attended the Chainlink Hacker House during the 28 hours it was open. Congratulations to all the winners of the hackathon🏅 Loved seeing the drive & enthusiasm, even at 4AM in the morning while we were debugging issues together.
The Chainlink Hacker House prize winners were just announced 🏆. CCIP Prizes: . 🥇 CrossDAO—a robust solution designed to support cross-chain DAO implementations. 🥈 LedgerLink—a project that streamlines cross-chain development by automatically launching proxy contracts across
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If you're just getting started on your web3 developer journey, the #Chainlink hackathon is perfect for you, offering a beginner-friendly 'Welcome Track' where you can win valuable educational resources, cash prizes, Swag, and NFTs. Sign up today!
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CROSS-CHAIN WEB3 DEVELOPERS: 156 Web3 developers participating in the very first #Chainlink CCIP Masterclass, learning from @andrej_dev.about how to use CCIP to build secure cross-chain smart contracts. ⛓️🔐⛓️
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Check out my latest article, and hackathon prize winning submission: Disrupting the #Insurance Sector with #Blockchain & #SmartContracts -
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#Chainlink Labs DevRel team starting 2024 off with a bang 💥. - 10 day online free bootcamp covering smart contract development and Chainlink services 🧑💻.- Each bootcamp being run in 3 languages (English, Spanish, Portuguese) 🇬🇧🇪🇸🇵🇹.- 5000 registrations ✅.- More than 500 devs.
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The tokenization of quadrillions (yes, that's right) worth of assets onchain to a blockchain based format is inevitable. And it's becoming pretty clear that #Chainlink is well positioned to be how all this new financial infrastructure will talk to eachother.
We’re excited to share the results of a new Smart NAV industry pilot between @The_DTCC, Chainlink, and 10 of the world’s largest financial institutions that delivered key mutual fund data onchain. Full report: The significance for fund tokenization 🧵
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#Solana DeFi protocols now have access to the high quality, secure and reliable pricing data that has become synonymous with #Chainlink Price Feeds (1/2).
#Chainlink Price Feeds are now live on @solana mainnet!. With Chainlink oracles natively integrated on #Solana’s high-speed #blockchain, developers now have access to the most proven oracle infrastructure for building secure and scalable #Web3 apps.
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My talk proposal for Devcon was rejected, but my application to DJ got approved 😂. Catch me at the music stage (ground floor) tomorrow from 4–5 PM, spinning silky-smooth vocal house to sit and vibe or do some work to 🧊🎵
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Responding here with my thoughts on tokenized RWAs and the oracle problem:. Blockchains and smart contracts are an isolated black box, so DeFi works great because the only thing you need from the outside world is some price data as an input, but everything else (the assets,
I feel increasingly skeptical of RWA Web3 systems, for one fundamental reason: The Oracle problem. Let's take a step back. Why has DeFi, and (crypto) currencies worked so well? Because they are applications purely representable in digital form.
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I spoke with around 200 developers, founders, CTOs, Product Managers and Marketers during my 9 days in Bangkok at @EFDevcon, various side events and the @ETHGlobal hackathon. Here are my top 10 takeaways: 📜 . 1️⃣ Infra over apps is still a thing, but slowly apps are becoming more
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All the DevRels arriving at ETHDenver, ready to start the 2024 crypto conference season
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"#Chainlink is not just about data, it's about an oracle network. And oracle networks are actually responsible for everything that blockchains are not responsible for". Keepers help automate on-chain tasks & the triggering of hybrid smart contracts in a decentralized manner.
#Chainlink Keepers is out in Open Beta, a reliable decentralized oracle network for cost-efficient automation of hybrid smart contracts in #DeFi. We're excited to work with initial users & gather community feedback to finalize any improvements or features.
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We've had $3B+ in oracle & bridge related DeFi exploits the past few years. $0 lost due to #Chainlink
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Congratulations to the winning project of our Constellation hackathon, 🥇. Unwallet is a Web3 wallet that aims to tackle the biggest blocker to mainstream adoption in this space: 90% of users drop off during the wallet creation phase!. As we all know, Web3.
🌌 Announcing the winners of Constellation: A Chainlink Hackathon 🌌. •Cross-chain wallets.•Quantum algorithms.•Decentralized ETFs .•Customizable insurance. And much, much more. Chainlink makes Web3 real—dive in ⬇️ .
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Just under 400 smart contract developers sitting with @thergdev in the very first #Chainlink CCIP Bootcamp livestream 🔥 . Follow along in the link below 👇
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I remember the months leading up to the #Chainlink mainnet go-live back in early 2019, looking for livestreams of Sergey talks to see if any news would drop, and everyone constantly searching the GitHub and Pivotal Tracker for breadcrumbs. Then mainnet finally hit, DeFi summer.
5 years ago today, #Chainlink launched on mainnet. From powering DeFi to working with the largest financial institutions across the globe, Chainlink has become the standard for connecting data and value onchain. But this is only the beginning.
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From the basics of Solidity, to how to create a full stack DeFi or NFT dApp, building a DAO, smart contract upgrades, op-codes & much more. this #Chainlink hackathon has really taken hackathon workshops to another level. Sign up today, over 500k in prizes!
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4 years of being the best in the world at what we do. There's no other place I'd rather be in Web3 ⛓️🔗.
4 years ago today, Chainlink launched on mainnet. Thank you to all the developers, researchers, data providers, node operators, users, & community members who have worked to make #Chainlink the standard for connecting the world to blockchains. Our story:
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In 2020, it was Chainlink Price Feeds that enabled DeFi to thrive. In 2021 and 2022, it was Chainlink VRF that enabled Web3 gaming & NFT mints to thrive. In 2024 and beyond, it’s the Chainlink platform that will enable tokenization and RWAs to come onchain. See the pattern?.
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@theyrecovered @ScruFFuR According to stats on chainlink has more data requests/usage (transferAndCall) than it does trading activity (transfer). Pretty amazing stat.
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#Chainlink Functions and @graphprotocol is a great combination of services that allows you to bring indexed data back on-chain in a trust minimized way. Slowly but surely, we're getting the functionality that traditional web apps have.
In the latest Graph Builders Blog, learn how to harness the power of @Uniswap liquidity data & @Chainlink Functions to refine trading strategies! 📊. It includes a step-by-step guide for how to use The Graph for dynamic trading. Check it out ⬇️.
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Enjoyed collaborating with the legends at @graphprotocol on a cool application of subgraphs & #Chainlink Functions, where a DeFi smart contract obtains indexed @Uniswap historical liquidity data, & then uses that to perform 'smart' conditional or calculated transactions on-chain
Learning about Chainlink and how to connect The Graph and Uniswap using Chainlink functions! Pretty slick so far. 🙌🏼😎. @solangegueiros @pappas9999 @graphprotocol @edgeandnode @chainlink . 👇🏼👇🏼👇🏼.
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It's been a hectic couple weeks getting 500 projects properly looked at and scored by multiple judges, but the #Chainlink hackathon main track judging is complete, and winners are locked in for the closing ceremony this weekend 📜🔐
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The #Chainlink fall 2021 hackathon is now live! Want to get a job full-time in crypto? Participating in hackathons is a great way to work towards this goal. Plus they're so much fun, and in this case, there's 300k in prizes to be given out. OK;LG!
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With the launch of CCIP 1.5 and the Cross Chain Token (CCT) standard this week, we’ve been working with the legends at @thirdweb to bring the CCT standard to their platform. This new module enables thirdweb developers to self-serve and onboard CCIP cross-chain tokens in a.
🚀 LAUNCH: Deploy Cross-Chain Tokens (CCTs) to any EVM chain with @thirdweb + @Chainlink CCIP 1.5!. • Effortless cross-chain deployment.• Unified liquidity across chains.• Enhanced token control & security. Here’s how you can get started 👇🧵
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Moderated an all-star panel on all things DevRel at the #SmartCon2023 Hacker House, featuring @CiaraNightingal @razacodes @VittoStack and @RGottleber
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After working in developer-relations @ @Smart_Contract for the better part of a year now, I've come to the conclusion that being a developer advocate literally gives you a real opportunity to change the world for the better. A 🧵.
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@Henrik_Palmgren The kids are actually happy, no phones or social media, or cheap dopamine like TikTok or Instagram ruining the mental health of everyone. I was lucky to graduate during this time too.
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The days of private chains are numbered. The future looks bright, with the mainnet to be used in a safe & secure way to maintain state between enterprise systems of record. No more silos, or storing biz data & logic on-chain,just boring inter-enterprise middleware $LINK $UBT $ETH.
Microsoft, EY And ConsenSys To Make The Public Ethereum Blockchain Safe For Enterprises via @forbes
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We truly feel that Functions has the ability to unlock the next wave of big use cases in Web3. Because you can finally build Web3 apps that have the connectivity & composability of Web2. And with this Chainlink is no longer just a price data oracle, but an ANY data oracle 🔑🌊.
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Like clockwork, we have another DeFi oracle exploit. At this stage its becoming laughable! Any DeFi protocols relying on a single or small number of exchanges for price data are essentially giving exploiters keys to their house. Data quality & delivery is everything #chainlink.
#DeFi protocols should avoid using a single exchange or even just a few exchanges as their price source, regardless of whether it's an off-chain exchange that seems reliable and/or an on-chain DEX. Read more here: .or watch here:
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That's a wrap! 9 days, one massive conference, countless side events, talks and panels. and the biggest IRL @ETHGlobal hackathon ever, where a record number of projects used #Chainlink. Had interesting crypto tech related conversations with ~200 people, forged new friendships,
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Check out my opinion piece on what features the ideal decentralized oracle network would have for solving the oracle problem, and why #chainlink is quickly becoming the standard network for blockchains to communicate with external systems and devices #smartcontracts #blockchain.
How to solve the oracle problem? . This week, on #Illumination, @pappas9999 dives in. Design choices, flexibility, standardisation, and more. Check it out:
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Didn't go to Token, but had a massive week. Lots of stuff cooking in the Chainlink Labs DevRel team for developers: Smartcon Hacker House prep, dev tools, banger video content, new educational programs, IRL developer events, product DevExp, hackathons, hookathons, Tokenization
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#chainlink Price Feeds are without question the most superior and secure way of getting high quality price data into your smart contracts. Check out this guide on how easy it is to use them to fetch real time price data in your #solidity contract.
Chainlink Price Feeds provide a quick & reliable way to feed high-quality #Bitcoin, #Ethereum, & other cryptocurrency price data into Solidity smart contracts. Learn how to securely fetch real-time price data with #Chainlink oracles in our latest tutorial.
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The launch of THE decentralized Oracle network. a huge milestone that will go down in technological history as a pivotal moment. Congratulations to the @chainlink team. 👏 . $LINK.
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UNPARALLELED! If you're a dev coming to Barcelona for SmartCon23, you're going to want to come 2 days early, and join hundreds of others in the most epic Web3 hacker house the world has ever seen 👨💻🏠. 👇.
Announcing the Hacker House at #SmartCon 2023!. Whether you're a beginner or an expert, join hundreds of developers for a free, two-day experience where you can learn from the best engineers and help build the future of Web3. 🗓️Sept 30 - Oct 1.📍Barcelona.
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Join me at the #SmartCon Developer track! I'll be talking about building secure smart contracts, going over known vulnerabilities, and sharing best practices for implementing a defence in depth approach to building smart contracts 🔐👨💻📃.
On August 6, the #SmartCon Developer Track will host industry-leading devs from top #DeFi & #NFT projects, who will showcase #blockchain coding basics, best practices, & live implementations. Level up your smart contract development by registering below.
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Come join us next month, as we discuss the future of finance, and the role #chainlink plays in enabling this more transparent and economically fair world 🇦🇺.
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It's a long marathon, but @PatrickAlphaC's 32 hour Web3 developer course on @freeCodeCamp will turn you into a Blockchain Developer King/Queen 👑🫅. 👇.
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Actual footage of our engineers testing the new version of #Chainlink VRF with a select group of users in the GameFi space.
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Helping developers is a big part of DevRel, & Discord is the place where devs like to hang in Web3. But as a developer community we need to move away from tech support in Discord. Discord is great for chat, but it sucks for technical support, mainly because It doesn’t scale 1/2
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Really cool new tutorial from the community showing how to deploy and run smart contracts and a #chainlink node all locally (consumer contract ,link & oracle contracts, Chainlink node) using truffle, ganache & local kubernetes.
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Solid product update. TLDR: We've been busy creating the industry standard Web3 services platform.
In this update, Chainlink Labs Chief Product Officer @kelmoujahid covers recent deployments and what's next for #Chainlink's wide range of #Web3 services, including:. -Data Feeds.-Functions.-Proof of Reserve.-DECO.-Automation.-VRF.-FSS.-CCIP. Dive in👇.
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We're looking for an experienced DevRel Marketing Manager to lead our Dev Marketing team at @chainlink Labs . If you or someone you know has some solid experience in developer marketing, feel free to apply or pass this on. Happy to answer any questions via DM!.
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Systems Design 101: The more complicated your system is, the more points of failure it can have. While we see oracle's failing all the time, reminder that #Chainlink has been running in production for half a decade without major issue. This is why it's the standard
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Standing room only at the #SmartCon developer day second room. Currently listening to presentations from the #Chainlink ecosystem legends @linkpoolio
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Actual footage of the #Chainlink CCIP ARM network blessing Merkle roots on the destination chain during a cross-chain transaction
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Over the next few years, cross-chain smart contracts are going to bring into fruition some really cool and interesting new use cases.
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The #Chainlink Sepolia ETH Faucet is once again up and running! Get your #Sepolia ETH for dApp development and testing 🪙🪙🪙👇.
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@cz_binance when the CEO himself promotes 'high returns' of shitcoins that used his centralized platform & token, you know they true scams that exist purely to raise capital. Good CEOs in this space don't talk about price, they focus on the tech and adoption.
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