2140.dev @2140_dev

2140.dev 📍 Amsterdam Joined October 2025

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2140.dev @2140_dev

2 weeks ago

From hacking on Frigate at the 2140 Silent Payments Dev Week last September, to having a full production stack! A huge thanks to @SparrowWallet for collaborating with us on Silent Payments 🤫🐦

Sparrow Wallet 🐦 @SparrowWallet

2 weeks ago

Sparrow v2.5.0 released with: Silent Payments (SP) wallets SP-capable Frigate public server @2140_dev bitview.space fee rates source sparrowwallet.com/download

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Sparrow Wallet 🐦 @SparrowWallet

2 weeks ago

Sparrow v2.5.0 released with: Silent Payments (SP) wallets SP-capable Frigate public server @2140_dev bitview.space fee rates source sparrowwallet.com/download

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Our first annual report is out! 📄 2025, our inaugural year was full of progress, challenges and lessons learned. 🛠️ We believe in building in the open. This is our story so far. 📖 Read it here on our brand new substack: 2140blog.substack.com/p/our-first-an…

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BitDevs-Amsterdam @BitDevsAms

4 weeks ago

Be reminded that the Bitdevs of May 7th was moved to May 14th.

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Chaincode Labs @ChaincodeLabs

a month ago

Nominations are open for the 2026 Bitcoin Research Prize! Submit papers that made an impact on Bitcoin or Lightning published after 2022: forms.gle/DzN1gt7XbgEcMF… Have you (co)authored any papers that fit this criteria? Submissions are anonymous 😉

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2140.dev @2140_dev

3 months ago

Did you know you can build a stick visualization of your mempool clusters and fee estimation using the getmempooldiagram RPC? Did you know that if you also include PR #34075 you can see how accurate the fee estimation for previous blocks was? Sadiq knew, be like Sadiq 🏗️🚢

Abubakar Sadiq Ismail @sadeeq_ismaela

3 months ago

bitcoincorefeerate.com github.com/2140-dev/bitco… - Visualize fee rate estimates for some confirmation target - Benchmark accuracy against confirmed blocks - Cluster Mempool feerate diagram Next up: benchmarking against other estimators?

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BitDevs-Amsterdam @BitDevsAms

3 months ago

Join us next week in Amsterdam! bitdevsamsterdam.org/2026-03-05-mar… @SomsenRuben @josibake @GeorgeTsag @JWBurgers @StammisIO

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2140.dev @2140_dev

3 months ago

@boyacaxa Different protocol, not our great Rob.

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2140.dev @2140_dev

3 months ago

Our Rob is not Rob the great*, but he is a great Rob, a devoted Rob. He's a dont-have-a-twitter-account Rob, a focused Rob. A speed-up-your-ibd Rob, a true committed Rob. He's been approved by the council of Robs**, a top notch Rob.

Spiral @spiralbtc

3 months ago

We’re funding a guy named Rob via @2140_dev that they’ve assured us is a top notch Rob. He’ll be improving Core by speeding up initial block downloads using SwiftSync, continuing Kyoto work, adding integrations with LDK Node, Bull Bitcoin, Cove, and more github.com/rustaceanrob/

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2140.dev @2140_dev

3 months ago

* The previous tweet may contain historically inaccurate information, but our Rob is great nonetheless. ** If you don't agree with the council's decision, you can take it with @Rob1Ham and @robertwarren.

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Vinteum @Vinteum_org

7 months ago

Last week we hosted the 2nd @casavinteum Retreat, this time bringing together the full Floresta team, the Utreexo crew (@Erik17192799, @kcalvinalvinn, @tdryja) and @SomsenRuben representing SwiftSync and PoW fraud proofs to align on the roadmap for Floresta, utreexod and more. They also dove into spacechains, Kernel and a bunch of other ideas. The meeting led to several exciting outcomes, from faster Utreexo bridges to plans for integrating SwiftSync into Floresta for even faster IBD. Huge thanks to @HRF for supporting this retreat. Davidson will share a full summary on Delving Bitcoin soon.

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Btrust @btrustteam

7 months ago

Just wrapped up @satsconf_ 2025, and it was such an amazing experience! On Day 2, @StephTitcombe got to speak on decentralizing Bitcoin development, where she highlighted the work we're doing in the Global South. We're really happy to have been part of São Paulo Bitcoin Week. Big shoutout to @lucasdcf, @brrrunog, and the entire @Vinteum_org and @satsconf_ team for putting together such an incredible week. Looking forward to more of these. See you soon, Brazil 🇧🇷.

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2140.dev @2140_dev

7 months ago

🫶

Steve Lee @moneyball

7 months ago

This is awesome!

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Breez ⚡ @Breez_Tech

7 months ago

Amsterdam didn't disappoint 👀 Thanks to everyone who came along to learn more about </time2build> with @WitDeJesse at @2140_dev Looking forward to seeing what you all build 👀 🧵

2140.dev @2140_dev

8 months ago

⚡️SAVE THE DATE⚡️ ️ When: Oct 23 • Where: 2140 • What: </time2build> Join Jesse from @Breez_Tech to learn about the </time2build> challenge and how to build with the Breez SDK. Follow the link or DM @WitDeJesse for details. luma.com/k3h70fvy

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2140.dev @2140_dev

7 months ago

🫶

Jodom 🔆🐴 @okjodom

7 months ago

They say skill is evenly distributed. Opportunity is not! Thank you @2140_dev and @btrustteam for providing that opportunity

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2140.dev @2140_dev

7 months ago

we're back!

Jodom 🔆🐴 @okjodom

7 months ago

They say skill is evenly distributed. Opportunity is not! Thank you @2140_dev and @btrustteam for providing that opportunity

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2140.dev @2140_dev

8 months ago

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2140.dev @2140_dev

8 months ago

🫶💛🖤

Btrust @btrustteam

8 months ago

You know what’s frustrating? When you’ve got the skills, the drive, and the ideas to make an impact, but the only thing stopping you is a border stamp. That’s the reality for so many brilliant Bitcoin developers across Africa and the Global South. They can write world‑class