Simple developer solutions for integrating bitcoin payments into your apps. Fast, low-fee, self-custodial. Supports Lightning, Ark, and on-chain.

Joined June 2024
SECOND IS NOW ON MAINNET. Bark, our implementation of the Ark protocol, is available for anyone to start making bitcoin payments. Included in the launch are our mainnet Ark server, the Bark SDK, and multiple wallets to try from day one.
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Here's how arkoor payments make a VTXO's exit path longer, and how a refresh shortens it again 👇
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Our diagrams are evolving…
VTXO tree and Unilateral exit, visualized.
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Watch an Ark exit watchtower publish presigned unilateral exit transactions for a user while they've been offline too long to refresh their VTXOs. Demo is on regtest. Signet deployment soon.
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Building the Bark plugin for @BtcpayServer, I keep spotting things to improve. I don't ignore them, I open a PR. 4 PRs merged upstream so far. It ain't much, but it's honest work 🧑‍🌾
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Hoping to have a public signet Ark exit watchtower up and running this week so folks can test offline exiting for themselves.
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Zappin is a new social app from Japan 🇯🇵 >"In addition, it is equipped with a Bitcoin Ark wallet, which can be used to send bitcoins to posts and to make payments in stores."
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Bark plugin is live in the @BtcpayServer directory plugin-builder.btcpayserver.…
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What if your bitcoin wallet had no buttons at all? Just your balance. Hold, say what you want, done.
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ArkPool Gateway v1.0.0:8 for StartOS is live ⚡ 🧅 Redundant Tor-only mining paths ⛏️ Private gateway for Bitaxe and Stratum V1 miners 🔄 Safer in-place service upgrades 🔐 Preserves settings, Tor/TLS identities, share history and dashboard credentials 🧰 Updated to StartOS SDK 3.0.6 ✅ Tested on StartOS 0.4.0.2 Download: gitlab.com/arkpool/arkpool-g… 🌐 arkpool.org
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I love this project. Easy pay-outs for plebminers
ArkPool Gateway v1.0.0:8 for StartOS is live ⚡ 🧅 Redundant Tor-only mining paths ⛏️ Private gateway for Bitaxe and Stratum V1 miners 🔄 Safer in-place service upgrades 🔐 Preserves settings, Tor/TLS identities, share history and dashboard credentials 🧰 Updated to StartOS SDK 3.0.6 ✅ Tested on StartOS 0.4.0.2 Download: gitlab.com/arkpool/arkpool-g… 🌐 arkpool.org
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People say @arkade_os and @secondhq aren't compatible, but my agents used Bark to fund an escrow at Agent Escrow creating a 2-of-3 escrow contract on Arkade, and then the contract settled back to their Bark wallets. Good thing swap services like @satora_io exist!
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The good thing about building apps with Ark is that I can test all day long with real bitcoin and it doesn't cost much at all. Testnet? Never heard of it.
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Bitcoin Wizard 🧙‍♂️ Andrew Poelstra (andytoshi) of @blksresearch presents “rust-bitcoin: the road to 1.0” The chart represents “PRs per day” of activity on the library. He references other OGs around the repo since the early days, such as @stevenroose3
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Pool payouts powered by Bark (small and frequent)
🔧 The $5 wrench attack is a lot harder when nobody knows where to bring the wrench. I haven't mined since the early days, but when I started looking into it again, I was surprised Tor wasn't more common in mining. Plenty of Bitcoin nodes run over @torproject, so why not miners too? Your IP address can reveal your approximate location, and when combined with other tracking data, potentially much more. Why expose that information just to mine Bitcoin? That's why I built ArkPool around Tor-only miner connections from day one. 🧅⛏️ Proof of work, not proof of address. arkpool.org gitlab.com/arkpool
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So rewarding to see Bark becoming the no-brainer choice for payment backends at bitcoin hackathons. Second conference in a row.
“It was my first time using Bark and with the AIs it just works…” So many cool Bark projects built in 20min at “the Alex Lewin Experience” @tabconf @secondhq
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Banks make you fill out forms, wait in line, and ask permission to use your own money. Bitcoin doesn't. And with Ark, it's instant. ⚡
The key feature of Bitcoin is that you don't have to sign up or create an account. This is the killer feature for humans and agents
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“Barking Mad” @stutxo corgi racing game. Bet on the winner tied to the next bitcoin block hash (bet on biscuit 🐕) “Unilateral exit is a larp” @januszg_ project that moves uneconomical VTXO exits into a bark-powered @CashuBTC mint! @tabconf @secondhq
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