# CD209: MATTHEW VUK - BARK - BITCOIN PAYMENTS ON ARK

Page: https://stenobird.com/podcast/citadel-dispatch-1365851/cd209-matthew-vuk-bark-bitcoin-payments-on-ark
Text version: https://stenobird.com/podcast/citadel-dispatch-1365851/cd209-matthew-vuk-bark-bitcoin-payments-on-ark.md
Podcast: [Citadel Dispatch](https://stenobird.com/podcast/citadel-dispatch-1365851)
Published: 2026-07-20T19:25:40+00:00
Episode link: https://serve.podhome.fm/episodepage/CitadelDispatch/cd209-matthew-vuk--bark--bitcoin-payments-on-ark
Audio file: https://serve.podhome.fm/episode/8029725b-0319-44b9-4793-08dc404e83a4/6392017186991057510d064d5b-1375-4c5a-845c-baf3817839b5.mp3
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JSON: https://stenobird.com/v1/public/podcasts/citadel-dispatch-1365851/episodes/cd209-matthew-vuk-bark-bitcoin-payments-on-ark
Duration seconds: 4410

## Resource

Matthew Vuk joins to discuss Bark, Second’s Bitcoin-only implementation of the Ark protocol. We get into how Ark wallets enable Lightning, on-chain, and instant Ark payments without managing channels or liquidity, plus VTXOs, delegated refreshes, unilateral exits, cloud backups, fees, privacy, and denial-of-service protections. Then we discuss running Ark servers, using Bark to power Cashu mints and African mobile-money gateways, proof of reserves, comparisons with Spark and Arkade, and Second’s mission to build open-source Bitcoin payment infrastructure. Second: https://second.tech Built with Bark: https://second.tech/docs/built-with-bark Matthew on X: https://x.com/matthewvuk2 Second on Nostr: https://primal.net/second EPISODE: 209 BLOCK: 958911 PRICE: 1529 sats per dollar more info on the show: https://citadeldispatch.com learn more about me: https://odell.xyz monitor the situation: https://citadelwire.com ten31: https://ten31.xyz opensats: https://opensats.org

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## Transcript

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