Chaitika Bhatnagar

[Bitshala @bitshala_org]

At Vadodara Bitcoin Meetup #7, we're doing something different.

Most people use Bitcoin, but we will talk to it.

Bring your laptop and spend two hours interacting directly with Bitcoin Core through the command line in the regtest mode.

No wallets. No block explorers. No slides.

Just you, a terminal, and the software that powers the world's first decentralized monetary network.

This hands-on lab is designed as an introduction to Bitshala's Learn Bitcoin from the Command Line (LBTCL) cohort, one of our most loved technical programs.

📅 8 August
🕕 6:00 PM to 8:00 PM
💻 Bring your laptop

Seats are limited.
Register now: https://t.co/B2Xj41mQm7✨

[Bitshala @bitshala_org]

Silent Payments: A Technical Guide to BIP 352 https://t.co/5ubzHr10mF

[Sameer Sewak @Naa_Cheese]

camera person parth dikhayiye

[Chaitika Bhatnagar @Chaitika_]

Isteefa Mubarak ;)

[Anish Gawande @anishgawande]

WHAT A DAY. WHAT A MOMENT. DHARMENDRA PRADHAN RESIGNS!

[Bitchat Community @BitchatMe_]

Official notice from the Indian government to GitHub regarding the removal and disabling of bitchat.

Governments that fear people talking without permission will always go after the tools that make it possible.

[jack @jack]

the government of india does not like technologies like bitchat and wants it taken down

[devisha @_devisha]

this is exactly why open source AI matters - it’s infuriating that we keep relying on these centralised black boxes

one government order and Anthropic has to globally disable Fable 5 & Mythos 5 for everyone. Just like that. Poof

the future belongs to open source

Open source models can’t be disabled like that. The weights are public anyone can run them locally, on their own hardware, or through decentralized infrastructure

no central switch exists for governments (or companies) to flip

we’ve been warned - stop building single points of failure

[Chaitika Bhatnagar @Chaitika_]

Just me or are LLMs getting dumber for all?

[Chaitika Bhatnagar @Chaitika_]

@RunwithBitcoin @studentofbtc @geyserfund Congratulations!! Excited for the book!!

[Chaitika Bhatnagar @Chaitika_]

My first blog :))

https://t.co/xlUxLyqUN2

[Chaitika Bhatnagar @Chaitika_]

Amazing people, ideas & projects!🙌

[Bitshala @bitshala_org]

https://t.co/nFrTu3KVLV

[Chaitika Bhatnagar @Chaitika_]

No borders in the cloud, No masters in the code.

[Bitshala @bitshala_org]

🚀 Bitshala : Mastering Lightning Network (LN) Cohort - Season 3 ⚡

📅 Starts 27th May 2026 | 8‑Weeks | Wednesdays, 8:00 PM IST (2:30 PM UTC)

Go beyond on‑chain Bitcoin and learn to build on Lightning with a hands‑on, guided cohort.

What you’ll get:
⚡ Self‑study + weekly live sessions
⚡ Group discussions & live Q&A
⚡ LN engineering, node ops, channels, routing, security & real‑world use cases

[Bitshala @bitshala_org]

Bitshala's Learn Bitcoin from the Command Line Cohort (LBTCL) - Season 3 begins on 11th May 2026.

A 6‑week hands‑on cohort focused on learning Bitcoin Core through the CLI.

Includes:
⚡ Guided modules
⚡ Community discussions & Q&A
⚡ Weekly live sessions

Who should join?
👉 Intermediate learners with basic Bitcoin knowledge and comfort using Unix/Linux CLI — especially developers and builders.

[Chetan Bhagat @chetan_bhagat]

Rupee at 60. It is mayhem. Close to an economic crisis. But well, the government is silent.

[Code Orange Dev School @CodeOrangeDevs]

Our Vibe Coding Workshop meets @BitcoinDojo1 Study Cohort

@Chaitika_ vibe coded a website to teach students how bitcoin validates a transaction. Learning by doing. So proud of this community!

Here is the website: https://t.co/pL1BVDLYbA

[Chaitika Bhatnagar @Chaitika_]

🧡

[DADA DEVS @DadaDevs]

Last week, through the lens of @Chaitika_ the focus was on Scripting, key control, and transaction-level behavior.

Script was approached through execution rather than abstraction, with emphasis on how outputs define spend conditions and how validation enforces them. P2PKH, P2SH, and P2WPKH were used as reference points, particularly in understanding SegWit’s role in transaction structure, weight, and malleability fixes.

Spending conditions were extended into multisig, timelocks, and HTLCs. This covered m-of-n authorization, absolute and relative timelocks via nLockTime and nSequence, and hashlock constructions for conditional flows.

On the security side, the discussion centered on key ownership. Authentication and authorization were separated at the wallet level, with cold storage treated as an operational necessity for minimizing key exposure.

Threat models focused on realistic vectors, including malware, phishing, and physical compromise.

At the transaction layer, signatures and fee rates were examined in relation to validation and mempool policy.

Privacy was discussed in terms of UTXO linkability, CoinJoin usage, and the impact of address reuse on traceability.

#BitcoinDevelopment #BitcoinSecurity #DadaDevs

[Chaitika Bhatnagar @Chaitika_]

- Steve Jobs, Make Something Wonderful.

[paperpsych @_paperpsych]

Twice in two weeks @veronika_dorson & me ran @HODLdesign!

The second session went so well that we found ourselves running it again the following Saturday.

Which means I’m writing about both of them at once.

Here’s everything that unfolded across those two Saturdays 👇🏼...

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