# Probably Nothing 214: Filecoin & Hashkey

**Published by:** [Probably Nothing](https://pn.developerdao.com/)
**Published on:** 2026-03-30
**Categories:** hackathon, education, programming
**URL:** https://pn.developerdao.com/issue-214

## Content

This week, we have:Filecoin on DevNTellA Hashkey DeFi hackathonUpcoming EventsDevNTell - Filecoin Onchain Cloud Explained: Verifiable Decentralized Cloud for Web3 Builders​This week on DevNTell, Sarah Thiam, Head of DevRel at Filecoin, will be our guest. She will be introducing us to Filecoin Onchain Cloud. Filecoin Onchain Cloud provides transparent storage, retrieval, and payments on the Filecoin network. Viewers of this DevNTell will learn about Filecoin OnChain Cloud and how to get started using it today! Register here to get notified when the show starts.HashKey Chain On-Chain Horizon Hackathon: Building the Future of Financial InfrastructureThe HashKey Chain On-Chain Horizon Hackathon is now underway, bringing together global developers, entrepreneurs, and industry practitioners to build next-generation financial infrastructure at the intersection of AI and DeFi. 🗓 March 10 – April 23, 2026 📝 Registration Deadline: April 15 💰 Prize Pool: 40,000 USDT The hackathon centers on the theme “Technology Empowers Finance, Innovation Reconstructs Ecosystem,” with a strong focus on practical AI applications in decentralized finance. Participants actively form cross-disciplinary teams and develop solutions across key tracks, including DeFi, PayFi, AI, and ZKID, with use cases ranging from intelligent trading to on-chain infrastructure to automated DeFi operations. Hosted in Hong Kong, the event combines virtual collaboration with offline showcases, culminating in final demos and awards at the Web3 Festival. Each track offers prizes of up to 5,000 USDT for top-performing teams. Register if you are interested. Community HighlightsLast week featured two episodes of the DevNTell show:João Moreira, Founder and CEO of Mystic Finance, discussed “The Future of On-Chain Lending and RWAs with Mystic Finance.”Ryan Beltrán and Eric Wood, Co-Founders of ChainCraft, covered “How to Build a Game with AI Using ChainCraft.”You can catch the Mystic Finance episode on Spotify and Apple Podcasts, and mint the episode on Pods to own it on-chain. The ChainCraft episode is also available on Spotify and Apple Podcasts, with the option to mint and own it on Pods.Job SeekersD_D member @pbillingsby is looking for his next role. He's a hybrid software engineer with experience across web3, fintech, and AI; full-stack systems; CLI tooling; automation; and developer education. Looking to join a small to mid-sized team building at the core level for software development and/or devrel. If anyone knows of teams hiring, I would love to connect.D_D member @voyageur6049 is looking for web3 jobs with a clear PMF. Has experience working in web3 + data-intensive applications with an early-stage startup. Send a message to @voyageur6049 if you are hiring or know anyone who is. D_D member @0xjakess is looking to take on new clients at their agency, Ethereal Labs, a Web3 Development Agency. Send a DM on Telegram (xjakess) if you are looking for devs for your project.D_D member @gcodez is currently open to new client engagements. He builds high-quality mobile applications using Flutter and Dart, as well as native mobile technologies, and is available for projects requiring reliable cross-platform or fully native solutions. Jobs ProvidersDisclaimer: Please do your due diligence about a role posted here.D_D InitiativesD_D CloudIncredibly, Ethereum is now 10 years old! All great things require time to mature, and, amazingly, it took a decade for an RPC option like D_D Cloud to emerge. We're putting the final touches on the first-ever hybrid cloud built for web3, and it's almost showtime. Want front-row seats when the doors open? Join the waitlist & be the first to know.Developer DAO VenturesFounders: Scale Your Web3 or AI Product Faster. D_D Ventures partners with bold builders to reshape the future of decentralized tech and AI. We help early-stage teams like yours:Build smarter with Web3 and AI infrastructure expertise.Grow globally with proven strategies to amplify your reach.👉 Got vision? Let's talk. Contact us today to elevate your product to category leadership.D_D Arweave GatewayDelegate your ARIO tokens to our Arweave gateway, as we will share 10% of the rewards with you. You can delegate your ARIO tokens here. If you don't have ARIO tokens yet, visit the ar.io website to learn how to obtain them.Community NewsAn article on what Lamport's 1978 paper tells us about why Nakamoto chose the longest chain rule by Charles Freeborn.Beware of what you paste into LLMs. Hidden chars can carry invisible instructions that your AI reads and follows. @ropats16 has created a tool to show you hidden characters in text. Watch the video on X.An upcoming workshop on building a standout web portfolio from scratch, no coding required, using tools like Lovable, Replit, and Canva by @ropats16. Register here to partake.Simbolik Expands into a Full Security Toolkit for Solidity Engineers.Patrick Collins and Cyfrin Updraft launch the battlechain testnet. An L2 platform to battle test your smart contract before mainnet deployment.Ecosystem NewsPublic Goods Network (PGN) Shuts Down on April 20, 2026, at 9 AM ESTFollowing a governance vote earlier this year, PGN is shutting down, and unclaimed funds will be withdrawn to the Gitcoin Foundation treasury after this deadline.Resolv Protocol Exploit Triggers Unauthorized Minting of $80M USRResolv Digital Assets Ltd. disclosed a security incident involving the Resolv Protocol, where a compromised private key enabled an attacker to mint approximately $80M in uncollateralized USR tokens. The breach was quickly contained by pausing affected smart contracts, and about 9M USR linked to the attacker has already been burned. Tether Gold Expands to BNB Chain as Tokenized Gold Market Approaches $5 BillionTether has expanded Tether Gold (XAU₮) to the BNB Chain, broadening access to tokenized gold as the market nears $5 billion in market cap. At the same time, rising competition and scrutiny are challenging the dominance of XAU₮ and PAX Gold (PAXG).Trump crypto czar David Sacks exits role after 130 daysDavid Sacks stepped down as U.S. crypto and AI czar after 130 days and joined President Donald Trump’s tech council, following a tenure marked by delayed crypto legislation, limited policy outcomes, and conflict-of-interest concerns.WAGMI!

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