1/ Today, we're excited to officially announce our seed round, joined by some of the best fintech, tech, and capital markets investors in the world.

Hi all, just wanted to let everyone know that today is my last day at @MEonBTC. I am honored to have helped launch and build atop the ordinals and runes marketplaces, and was truly a roller coaster ride with all of you in the BTC community. I apologize that I was ultimately unable to get Spark trading at Magic Eden launched, but rest assured that I am still 100% committed to the BTC ecosystem. That is why I am proud to announce that after some time off to rest and recover I will be joining @ethanmarcus at @flashnet as head of engineering! I am in it for the long haul, and hope you all continue to follow me into the ultimate vision of BTC dominance in web3 and beyond :)

We’re seeing a spike in Spark SSP failures, causing some outbound sat transfers to fail. All funds are safe. Flashnet’s internal health switch automatically pauses outbounds when issues arise, protecting users and preventing cascades. Overall swap success remains above 99.5%, and we’re resolving the remaining 0.5%. We’re working with the Spark team and our partners to patch the issue and roll out SSP v3, which fixes the root cause. We expect to be back online within 48 hours, once the update is merged and tested. Appreciate everyone’s patience and support during the highest-volume day in Spark’s history. Rewards will be offered to all who participated. Small steps. Greatness to come.

Apparently something big is happening Sunday pacific time?

Bitcoin just got a new stablecoin. It’s called USDB, and it just went live on Spark. Welcome, @brale_xyz

The first stablecoin on Bitcoin is coming — and we’re partnering with @brale_xyz to make it happen. Learn more → spark.info/news/brale-spark-…

Unilateral exit is now live. > You can leave Spark anytime > No matter what happens If you have to ask anyone besides Bitcoin for your Bitcoin back, it’s wrapped.

Thanks for riding with us through Flashnet's first real-world testing. Refunds were processed, and everyone is whole. We’ve found issues and will be back soon to run it again smoothly. For those who got swaps through, hope you caught a glimpse of what’s ahead. Back soon!

🚨Demo🚨 You can’t trade Bitcoin on a DEX. @flashnet fixes that. @ethanmarcus demos how. Built on @spark (🫡 @lightspark), powered by USDB (a Brale-issued stablecoin), Flashnet unlocks native BTC ↔ USDB swaps on-chain, low-fee, and fast.

I just acquired a stablecoin (@brale_xyz) running on bitcoin (@spark) via ACH (@dwolla). There might only be a handful of people in the world who understand everything that led to this, but holy hell, team. We did it!!! Looking forward to scaling it!

Scaling past limits is never clean, it’s how you earn your place at the top. Everything being built now is designed for millions of users, not thousands. The goal is simple: when we go live, we stay live. When we do, it’ll be the fastest, most scalable Bitcoin native market ever built.

Spark on Magic Eden is the talk of the town right now, but we know you have questions. We’ve got your answers. Get up to speed on Spark before its live on Magic Eden: 👇

Today, we're introducing BTKN. We've spent months perfecting the UX for Bitcoin tokens. BTKN is the culmination of everything we've learned along the way. Details soon.

In the spirit of full transparency, we’re sharing our roadmap publicly. Hold us accountable.

The time has come. Flashnet AMM is now live in beta on @spark. If you want to build, checkout out docs @ docs.flashnet.xyz -> (pwd flashnetdocs) You're going to have fun playing with two of our early partners who are going live soon.

Spark is live. It's the fastest, cheapest, most UX-friendly way to build financial apps and launch assets on Bitcoin. Go try it → spark.money

We spent a lot of time thinking about the best UX for developers. One name kept coming up: @privy_io Today, we’re excited to announce our partnership. Together, we’re building the fastest way to spin up Bitcoin apps.

There are days we're reminded that building on Bitcoin is itself a growth hack. The CEO you're pitching probably checks Bitcoin's price more often than their email. They just want you to win.

Few companies are as good as @Breez_Tech at putting Bitcoin in people’s hands. We’re incredibly humbled to have them building on Spark. Learn more → spark.money/news/breez-spark…

Today is a good day. @walletofsatoshi is launching on Spark. > The largest Lightning wallet > Back in the U.S. > Fully self-custodial > Powered by Spark (but you won’t even notice) Beta is here. Who wants in?

By the way. Spark goes mainnet tomorrow.

We might be building the next Visa.

The Bitcoin L2 ecosystem is evolving, and so is Xverse. Our integration with @spark is officially LIVE on Extension! This brings a new level of speed, scalability, and sovereignty to your Bitcoin experience. 1/ Read on to learn more🧵👇

Spark is now live on @privy_io. Developers can now build world-class wallet UX on Spark using Privy’s SDKs. Like our friends at @guap_app, one of the fastest-growing remittance apps in the Caribbean.

You can now connect Spark wallets to apps across the internet. Welcome, @dynamic_xyz

bitcoin might be coming to gta 6

You guys broke Flashnet. We're working to get things back up! Funds are safe.

It’s stupid, but @spark is literally bitcoin. Just a bit faster A few months ago, I gave a talk on Spark at @citrea_xyz’s research day event. During the Q&A section of the event, someone asked me: “Can systems like Spark enable more programmability?” I hand waved a bit. Honestly, I didn’t know the answer. I had heard of “smart contract layers” coming to Spark, but I had no idea what they could do or how they worked. Fast forward a few months, @flashnet launched their beta. With that launch, docs were made password accessible, so I had a look. Basically, Flashnet is a layer that is built on top of Spark. It takes user intents from Spark users, matches them, executes the intents, and then distributes the funds back to users. During this execution of intents, Flashnet validators take temporary custody of funds in a shared “multisig” address. After the intent is executed (in seconds), users are given their updated balance post execution. While reading this, I came to the realization that it's similar to the way that “smart contract layers” on bitcoin work. But Flashnet is built on Spark, not bitcoin directly. And since Spark has sub-second transaction finalization, matching of user intents (trades, etc.) happens infinitely faster. I’ve been thinking about the “developer moat” for bitcoin L2s lately, and Spark’s is very clear. Most (if not all) of the token transfer, bitcoin-native metaprotocol-like applications that developers build on bitcoin, can also be built on Spark. Due to its statechain architecture, teams can argue (pretty soundly I might add) that user funds are self-custodial or non-custodial. And because Spark only operates via exchanging ownership of L1 bitcoin UTXOs, users do not have to “bridge funds” onto Spark. This is certainly a worthwhile tradeoff. Now, some applications might come with greater trust assumptions, just as Flashnet does. But, the finalization of these transactions happens at a much faster pace, so users’ exposure to the trust assumptions can be minimized from a time perspective. This is Spark's moat. So if you can build it on bitcoin, you can build it on Spark. I’ve written a lot about the trust assumptions related to the protocol, so check out the @BitcoinLayers review below to learn more. If you are fine with these trust assumptions (they’re pretty reasonable in my opinion), then Spark has a great developer moat to build solana-speed applications, where users retain strong custody assumptions and can incur further assumptions per their individual, application-specific use case.

At Sync’25, Lightspark’s @ccatalini delivered a masterclass on open networks, a powerful reminder that openness and interoperability are the foundation of the next era of payments.

Since you all seem to have strong opinions, we made something new for you to argue about. Our new docs are live. Build something and then roast us. Useful feedback will soon be rewarded. DMs open.

We have been building, quietly. In the coming weeks, we will begin to share. Those who know, know what's coming.

The waitlist for the Nodeless on @spark beta is now open ⚡️ Get early access to the simplest way to bring bitcoin into any app. Secure your spot 👇 breez.technology/spark/

👀 Someone just tipped you sats? Yup, that’s Bitcoin. Here’s how to claim it.⚡👇

5/ 🧱 Want to add Spark wallet support to your website? Now you can with Sats Connect & Xverse! Including Methods: ➡️ Flashnet Trading ➡️ Get Address ➡️ Get Balance ➡️ Transfer & Transfer Token ➡️ Sign Message 🔗 docs.xverse.app/sats-connect…

Working on a simple bitcoin powered point-of-sale app. It's powered by Spark, with Breez SDK. Onboarding is so easy. Just type in an amount and receive. No setup cost. No barriers. Bitcoin UX is about to take a leap forward.

Onramps weren’t built for stablecoins. So we built one that is. Today we're opening Alpha access to IO — a new, zero-fee on-ramp for getting dollars onchain in seconds. No friction. No markup. Just stablecoins. 🧵 👇

BREAKING: New research shows that Coinbase now custodies 2.9 million BTC (14.5% of the circulating supply) Bitcoiners should focus on scaling solutions and improving the on-chain UX to address this actual threat rather than pushing crazy proposals to censor Ordinals and Runes

Announcing the first mainnet release of multi-asset Lightning. 💱⚡ With Taproot Assets, users can make instant, low fee asset transfers, bringing trillions of stablecoin volume to #bitcoin. Lightning is now the global, interoperable financial layer. 🌐 lightning.engineering/posts/…

Spark (@buildonspark) will fundamentally change how people interact with Bitcoin. After months of working with partners and exploring every possible mechanism, we found that scaling non-custodial BTC trading using Lightning presents too many challenges due to liquidity and channel complexities. Small-scale efforts are possible, but not at the scale needed to compete with centralized trading. Spark isn't a new blockchain. It's the most trust-minimized L2 for Bitcoin (after Lightning)—more so than any Ethereum L2, requiring no new opcodes. Already testing on mainnet, Spark enables instant, ultra-low-cost payments with no need for consensus. Kudos to @kphur and the @lightspark team for envisioning Spark. Spark is the ideal solution for fast, cheap, non-custodial BTC, and we're excited to help make it a reality.

which narrative resonates with you more > eth is money > eth is the world computer

things people don't care about until they are impacted by them: - privacy - security - decentralisation

Introducing Spark Terminal - the best way to trade BTKN tokens on @spark Coming soon to @SatsTerminal

The first stablecoin to issue on Bitcoin/LN will become the biggest mark this tweet

It's time to build. Spark is now ready to be tested. Today, we're excited to onboard our first batch of wallets and builders. Only 20 seats are available for this first batch. Apply now spark.info/vip

Final prep for ETH Denver. So many good events to hit. If you’re building on Lightning or Spark. Let’s grab coffee (or tacos), or I’ll see you at the hackathon. 👏

PMF or Die starts today. We’re about to find out what happens when you lock 2 builders in an apartment with $25K, an internet connection, and just 90 days to build a $1 million dollar business. The 24/7 livestream will begin at 12 PM EST.