📷 XRPL KOREA Blockchain Hackathon: DE-BUTHON 2025  On March 22–23, @xrplkorea and @DeButler_ co-hosted De-Buthon 2025, a Web3 hackathon based on XRPL and the XRPL EVM Sidechain! 📷 Held at Kwangwoon University, the event welcomed 200+ participants and 24 teams, gathering builders, founders, and students eager to develop meaningful blockchain solutions on XRP Ledger.

🚀 ETC Nova Hackathon Demo Day is LIVE NOW! 🎬 Watch now: https://t.co/nuOjffWEv8 Don't miss the most exciting projects built on Ethereum Classic! 🚀🔥 #ETCNova# #EthereumClassic# #Hackathon# #DemoDay# #ETC# #BTC# #ETH# #BUIDL#

🚀 ETC Nova Hackathon: Demo Day is Here! 🎉 The wait is over—it's time to see the future of #EthereumClassic# in action! 🌍🔥 📅 Date: March 12th, 9:00 PM EST 📍 Where: YouTube (Playlist will go live at the event!) 🔗 Demo Day Playlist：https://t.co/nuOjffW6FA This is your chance to witness the most innovative projects emerging from #ETCNova#. From DeFi to infrastructure, security to scalability—builders have been pushing the limits of what’s possible on ETC. Come check out the demos, share your thoughts, and support the incredible teams shaping the future of Ethereum Classic. See you there! 🚀 #ETCNova# #EthereumClassic# #Hackathon# #BUIDL# #DemoDay#

📽️ De-Buthon 2025: XRPL Hackathon Highlights Watch the official recap video of XRPL Korea’s XRPL hackathon — where builders, students, and creators came together to launch new ideas using XRPL and XRPL EVM. See the energy, teamwork, and innovation that defined De-Buthon 2025. [KOR] 📽️ De-Buthon 2025: XRPL 해커톤 하이라이트 XRPL Korea와 함께한 블록체인 해커톤, De-Buthon 2025! 빌더와 학생들이 XRPL과 XRPL EVM 위에서 아이디어를 실현한 순간들을 영상으로 만나보세요. 열정과 협업, 그리고 진짜 Web3 빌딩의 현장 👇 #XRPL# #XRPLEDGER# #XRPLKorea# #Hackathon# #Blockchain# #Development#

ETC Nova 2025: The Inaugural ETC Global Hackathon by @ETCGrantsDao CODE THE FUTURE Event Dates: February 06, 2025 – March 26, 2025 Location: Worldwide Prize Pool: Over 29,000 $ETC #EthereumClassic# #ETC# #Hackathon# #ETCNova# https://t.co/uOcDlgzBzi

We were proud supporters of the inaugural Web3 Hackathon NZ that took place last week 🇳🇿🚀🌕 24 teams of developers from all over the country came together to transform their ideas to real-world, decentralized solutions. It all culminated on Sunday. Teams pitched and showcased their projects to industry leaders and fellow hackers. A HUGE congratulations to the winners and thank you to @Web3NZ and @AucklandUni for hosting!

Only a couple of days to go until New Zealand's first Web3 Hackathon kicks off 🚀 This hackathon isn't just an event – it's a launchpad. For the next generation of builders of the web3 revolution. And we're stoked to be involved alongside our friends @Web3NZ @AucklandUni @CNZ_DAO + more! See you on Friday, builders 🛠️ #Web3# #Web3Hackathon# #NewZealand#

#ETCArmy#, check out our #ETC# Nova hackathon entry! 🚀 🚀 ETC Cypherpunks – The First Truly Immutable On-Chain NFT Ecosystem on Ethereum Classic (ETC)! 🔹 Inscribed NFTs – Stored forever on ETC 🔹 Mintable in #ETCPOW# 🔹 $CYPH Rewards – Earn via Web3 games & trading 🔹 AI-Powered Backstories & Chatbot 🔥 Live on Testnet – Mainnet Coming Soon! 🎥 Watch the demo: 👉 https://t.co/0AvHimb8V2

Presenting: ETC Nova, a Global Hackathon! 🎉 🧑‍💻 Earn $ETC by Building on Ethereum Classic 💚 Organized by @ETCGrantsDao 💰 Financially sponsored by @BITMAINtech & @AntPoolofficial #BuiltOnEthereum# #ETCNova# #EthereumClassic#

stx dev szn. 1. hundreds of builders participated in the latest stx hackathon with nearly 100 submissions. 2. the stacks foundation in partnership with multiple orgs announced a new builder program: stacks ascent. https://t.co/49ebjxJ6sd

🚨 Last call! 🚨 Today is the FINAL day to submit your project for #ETCNova#! ⏳ Don’t miss your shot at 29,200 $ETC in prizes, ecosystem support, and the chance to shape the future of #EthereumClassic#! Even if it’s just a demo, submit what you’ve got—every valid entry gets rewarded! 💰 ⏳ Time’s running out. Apply NOW: https://t.co/MP3aGeyHQG #Hackathon# #Crypto# #PoW# #BUIDL# 🚀

Main Tournament 37 is now open for entry. 🎟️ In collaboration with @devfunpump x @buidldev, there are TWO WAYS to win this week! - $777 in $BUIDL bounty to each league winner 🏆 - $500 bonus to the best Fantasy-related app entered in the Buidl Hackathon. (Winner selected in collaboration with the Fantasy/Buidl teams.) More details ⬇️

Winners Announced: The Buidl Battle Competition 🟧 Over the past few weeks, @StacksOrg hosted the Buidl Battle—an open competition for Bitcoin builders to ship powerful new tools, protocols, and apps across the Bitcoin ecosystem. With nearly a hundred submissions, two intense judging rounds, and a finale judged by top-tier VCs, Buidl Battle proved that the next wave of Bitcoin apps is already being built. Round 1: Themed Innovation Round 1 of the Buidl Battle was organized around four major themes: DeFi, the Digital Economy, Real World NFTs, and Developer Tooling. Each theme surfaced winners who demonstrated strong technical execution and potential for real impact on Bitcoin and Stacks. DeFi 🏆 BigMarket – A Bitcoin-native, AI-powered prediction market 🥈 BitForward – NFT-backed forward contracts using Bitcoin as collateral Digital Economy 🏆 KultureFun – Token-gated wallet chat and ad channel with DAO governance 🥈 StacksTube – AI-driven memecoin launchpad and entertainment platform Real World NFTs 🏆 Offers & Counter Offers – A seamless marketplace for BNS name trading 🥈 Truth-Chain – Onchain verification for digital content authenticity Tooling / Infrastructure 🏆 Blaze – A scaling protocol for fast off-chain transfers with secure onchain settlement 🥈 PoX Agents – Conversational interface for blockchain operations Partner Challenges To expand the playing field, partners held Challenges, incentivizing builders with more prizes for building innovative solutions with cutting-edge technology on the Internet Computer Protocol, AWS Bedrock platform, and AIBTC’s Agent-governed DAO platform. ICP Challenge 🏆 ckBoost — Reduce confirmation times to 15 minutes while rewarding liquidity providers 🥈 CounterParty ICP — API for retrieving asset information related to the Counterparty AWS Bedrock Challenge 🏆 StacksAI – AI-powered Clarity contract generator leveraging AWS Bedrock. Honorable Mentions Alongside these winners, a number of strong entries earned Honorable Mentions, including AutoStacks, Claride, Stacks Brain, Creator’s Web3 Economy, Bitcoin Loan Bank, TipCloud, Bolt Protocol, Kraxel, and Skullcoin. Wildcard Finalists To keep the competition dynamic and inclusive, four teams were nominated as Wildcard Finalists based on creativity, execution, and promise: TipCloud Bolt Protocol Kraxel Skullcoin After a final vote, Bolt Protocol—which enables users to pay transaction fees with sBTC and supports instant transfers between Bolt Wallets—earned its spot in the finals as the Wildcard Winner. From Builders to Finalists Round 1 was judged by a panel of experienced developers and startup operators who selected the top projects from each theme. These winners advanced to Round 2, where venture capitalists judged the finalists based on the problem their product solves, their vision, and team execution. Round 2: The Final Showdown In Round 2, twelve finalists—eight selected from the four themes, three teams from the partner challenge categories, and one wildcard—competed for the top prize. After pitches, demos, and a lot of deliberation, the judges awarded: 🏅 4th Place: ckBoost (ICP Challenge) 🥉 3rd Place: BitForward (Bitcoin DeFi Theme) 🥈 2nd Place: BigMarket (Bitcoin DeFi Theme) 🥇 1st Place: Blaze Protocol (Infra & Tooling Theme) Blaze Protocol by @lordrozar stood out as the most well-executed and visionary project, offering a new scaling layer for Bitcoin and Stacks apps with responsive, invisible blockchain interactions. The team impressed with both technical execution and long-term potential. What’s Next? The Buidl Battle was more than just a hackathon—it was a showcase of what’s possible when Bitcoin builders are given the right tools, support, and platform to build. These teams now have a launchpad to take their prototypes into production, and the Stacks community will be watching—and supporting—every step of the way. To all the builders: You showed up. You shipped. And you’re building the future of Bitcoin.