Dan Gould: Payjoin DevKit Ships and Breaks Common Input Ownership | SLP753
By Stephan Livera
Aired Jul 7, 2026 · 18m · Last boosted Aug 23, 2026
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Show Notes
Payjoin delivers transaction batching driven by real economic activity rather than waiting for pool participants, while also cutting fees through direct net settlement between counterparties. Dan Gould, maintainer of Payjoin DevKit, explains how the new async protocol and oblivious HTTP relay change what is practical for mobile wallets today. The conversation covers current live deployments in Bull Bitcoin and Cake Wallet, remaining fingerprinting heuristics beyond common input ownership, the multi-party roadmap, and how developers can integrate the library with under ten thousand lines of code. Timestamps: 00:00 — Payjoin DevKit 01:46 — Live Payj...
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Everyone who has boosted Dan Gould: Payjoin DevKit Ships and Breaks Common Input Ownership | SLP753 on Nostr, ranked by sats sent, all time.
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npub1m0gm4qa…Sep 16, 2026
250 btconboard #LNHANCE or #CTVSep 14, 2026
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100 Bro WTF? Everything about their theft is uncommon compared to white hat. You can’t steal and then extort, that isn’t how white hat works. There’s an inherent power balance where you’re “negotiating” with your victim of whom you stole their money. If I break into your house and steal all your shit, will you feel all good if I offer to give most back?
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btconboard #LNHANCE or #CTVJul 9, 2026
100 If it doesn’t have in app unilateral exit, it’s custodial, period. This is not negotiable. If something is not implemented then it simply doesn’t exist for the average user. 99.99999% of Spark users don’t even know a CLI app exists let alone how to use it. Without local caching and unilateral exit actually implemented in the app and having hard dependency on operator cooperation to exit then it’s custodial.
Listen I actually like Spark and think it makes reasonable tradeoffs in a world without covenants, but as it stands it’s a custodial product. Happy to revise this once we see an actual implementation of unilateral exit and more operators and LSPs, but it’s just the honest reality today.
btconboard #LNHANCE or #CTVJul 9, 2026
100 If it doesn’t have in app unilateral exit, it’s custodial, period. This is not negotiable. If something is not implemented then it simply doesn’t exist for the average user. 99.99999% of Spark users don’t even know a CLI app exists let alone how to use it. Without local caching and unilateral exit actually implemented in the app and having hard dependency on operator cooperation to exit then it’s custodial.
Listen I actually like Spark and think it makes reasonable tradeoffs in a world without covenants, but as it stands it’s a custodial product. Happy to revise this once we see an actual implementation of unilateral exit and more operators and LSPs, but it’s just the honest reality today.
npub1m0gm4qa…Jul 9, 2026
250 btconboard #LNHANCE or #CTVJul 8, 2026
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350 btconboard #LNHANCE or #CTVApr 11, 2025
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npub1m0gm4qa…Jun 2, 2025
250 btconboard #LNHANCE or #CTVJun 1, 2025
300 Seedless is safer is an attack on Bitcoin. Bitkey makes totally reasonable tradeoffs for noobs with modest stacks. But this is dishonest marketing at best.
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Mar 13, 2025
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