Building Bitcoin in Rust (BR) Season 2 Now open for registration. 🦀⚡ Learn Rust by building Bitcoin in 11 weeks via a hands-on cohort, based on Braiins' Building Bitcoin in Rust by Lukáš Hozda. We will explore: → Rust fundamentals, ownership, traits, testing → Mining & async networking → Node design & wallet construction 🗓️ Starts 10 Nov · Tuesdays 8 PM IST (2:30 PM UTC)⏬

BOSS Battle 2026 brought builders together across three tracks & each winning team now has received the reward of $1,000 USD-equivalent in Bitcoin. 🏆 Cypherpunk: Haystack / @Yogesh337209 🏆 Machine Money: Infernuous / @dev_useee & team 🏆 Freedom Stack: EcashMesh / @bansalayush247 The payouts are complete & the tx is verifiable on-chain: mempool.space/tx/baa61253bec…

The BOSS Summit Winter 2026 schedule is LIVE. 🟠 From 26th to 31st October, @bitshala_org will be in Jaipur for our winter summit, bringing builders together for a week of learning, conversations, and working on the things that matter to our future. And we’ve made room for 10 additional people to join the BOSS sessions. If you’re a developer, FOSS contributor, or Bitcoin builder looking to find your people, this is for you. 🧵 Here’s what’s planned 🔗 Full details: bitshala.org/boss/✨

Are you sure your Bitcoin private keys are truly safe from a signature-based attack? Join us today (19-Oct-2026) at 8:00 PM IST / 2:30 PM UTC for Latest in Bitcoin Tech We will be breaking down the evolution of node communication and critical security vulnerabilities, covering: 🔹ECDSA Fundamentals: An overview of the Elliptic Curve Digital Signature Algorithm. 🔹The Role of the Nonce: Why the value k is the most sensitive part of a signature. 🔹The Dark Skippy Attack: How a malicious signer can exfiltrate your seed phrase through seemingly normal signatures. 🔹BIP 461: Exploring the new standard for verifiable signing to protect your assets against these sophisticated attacks. 📍 8 PM IST only on Discord: discord.com/invite/STeQFVEWf…✨

An incredible evening of hands-on learning in Chennai! We took a deep dive into the inner workings of Bitcoin with a session at Bitcoin: Watch It Work. From the moment you hit 'send' to final confirmation, we explored it all: • Transaction structures & the Mempool • Understanding fee rates • Hands-on RBF & CPFP on Testnet using @SparrowWallet • Leveraging @mempool features to visualize the network Huge thanks to everyone who joined us to watch Bitcoin work in real time ⚡️

🎓 Congratulations to our Programming Bitcoin Season 2 graduates! 🟠 8 weeks of learning by doing. From setting up a local regtest environment to exploring cryptography, transactions, scripting, and networking, our cohort went deeper into the code that powers Bitcoin. The goal was simple: move beyond theory and start working with Bitcoin hands-on. Congratulations again to everyone who put in the work and earned their certificates. 👏

Bitcoin Protocol Development (BPD) Cohort - Season 3 starts today🟠 A 6‑week immersive cohort to give in-depth dive into the Bitcoin protocol Built around Bitcoin Protocol Development by Chaincode Labs, you’ll be doing Coding Challenges along with weekly Question Assignments 🔐🌐 ⚡Who’s it for? If you’ve already explored Bitcoin’s technicalities and want to level up, this cohort is for you. 📌 Apply here: app.bitshala.org/ 📖 Reading material: app.bitshala.org/bpd-instruc… Everyone is invited to join the orientation session today at 8:00 PM IST ⁠and decide if the cohort is right for you. 📍 8 PM on Bitshala Discord: discord.com/invite/STeQFVEWf…

Today’s Bitshala Reading Club: Where does new money actually come from? 📖 Week 5 | Friday, 16 October | 8 PM IST How does the modern financial system create money? What roles do banks and central banks play in the process? Join us today as we explore Part Four of Broken Money by @LynAldenContact and unpack the mechanics of the global monetary system. 📍 8 PM on Bitshala Discord: discord.com/invite/STeQFVEWf… 🟠

Congratulations to our Mastering Bitcoin Season 6 graduates! Over the last 10 weeks, they worked through the 3rd edition of Mastering Bitcoin by Andreas Antonopoulos, building a deeper understanding of the technology that powers Bitcoin. From transactions and HD wallets to mining and consensus, they went beyond the surface to understand how Bitcoin actually works. Every chapter completed. Every concept questioned. Every bit of effort earned. Congratulations to everyone who earned their certificates. The real journey begins when you take what you've learned and put it to work. The rabbit hole goes deeper. Keep going. 🟠

Every Taproot signature comes down to one equation: s = k + e·x So why can't anyone forge it? 🔐 Tonight we finish our signatures deep dive with @sha512rma: → ECDSA vs. Schnorr → Multisig + a critical attack vector → The Forking Lemma: forging Schnorr = solving the DLP 8 PM on Bitshala Discord: discord.com/invite/STeQFVEWf…

Bitshala Weekend Meetups · Saturday, 17 October 2026 This Saturday, four cities will come together around one idea: understanding Bitcoin, learning together, and building something that lasts. 📍 Chandigarh · 12–2 PM 📍 Vadodara · 12–2 PM 📍 Chennai · 4–6 PM 📍 Pune · 5–7 PM Wherever you are in your journey, there’s a place for you at the table. Find your city in the thread 🧵👇

That’s a wrap on Building Bitcoin in Rust (BR) Season 1! 🎓🦀 Over 10 weeks, our builders worked through the Braiins curriculum, progressing from Rust fundamentals like ownership and traits to async networking and Bitcoin node design. The goal was to move beyond learning Rust and start applying it to Bitcoin development. Watching participants turn that learning into production-style projects has been a highlight of this cohort. Congratulations to everyone who put in the work and earned their Proof-of-Work certificates. ⚡️ The next step in Bitcoin development starts with builders like these. 🟠

Don't keep your sats idle, run a Router with Portal.

🏆 BOSS Battle 2026: And the winners are... Before we announce the winners, there’s something we want to say. Over the last four weeks, we watched people show up, wrestle with problems, push through challenges, and turn ideas into working code. Thank you. This is exactly what we envisioned BOSS Battle to be about, and you’re the ones who made it happen. 🧡 And today, we get to celebrate some of that work. 🧵

🟠 Bitshala Vadodara Meet-up 📅 Saturday, 17 October | 12–2 PM What if a miner tried to create 1 million extra bitcoin? Who enforces the 21M limit? What would happen to the network? 🎟️ Register here: luma.com/gxc30cgz✨

Today’s Bitshala Club How is Bitcoin upgrading its peer-to-peer privacy? Latest in Bitcoin Tech | Today · 8 PM IST | 2:30 PM UTC 📍 8 PM on Discord: discord.com/invite/STeQFVEWf…

🟠 BITSHALA PUNE MEETUP Bitcoin Cryptography: From Private Keys to Digital Signatures This Saturday, 17 October 2026 | 5 - 7 PM 🎟️ Register now: luma.com/d8hesqom✨

A few moments from our Mumbai workshop: Privacy on Bitcoin! 🟠 We explored how on-chain analytics works, how transaction patterns can expose identities, and what tools and practices can help improve financial privacy.

Last week, we explored Schnorr Proofs of Knowledge. Tonight, we go deeper into ECDSA and see exactly why nonce reuse is so dangerous. A 256-bit private key can be protected by some of the most sophisticated mathematics in Bitcoin. But reuse one nonce & the math can give the private key back. We’ll break down: • Fiat-Shamir: How interactive proofs become signatures • ECDSA: The signing equation, security properties, and its evolution toward Schnorr and Taproot • Nonce Reuse: How two signatures can reveal the private key, step by step Join the Cryptographic Foundations of Bitcoin club tonight at 8 PM IST with host @sha512rma. 📍8 PM only on Discord: discord.com/invite/STeQFVEWf…✨