PayJoin, Autopilot, Bruteforce, Dandelion, PSBT ~ Bitcoin Op Tech #31
World Crypto Network
PayJoin (BIP 79) mixes recipient inputs to degrade blockchain analysis. Dandelion (BIP 156) relays in stem phase for privacy but faces mempool DoS constraints. Bitcoin Optech #31 covers PSBT cold-storage multisig, Lightning autopilot node selection heuristics (topology, liquidity, uptime, fees), and the broader challenge: privacy mechanisms require careful DoS design to avoid free-relay attacks.

https://relay.towardsliberty.com/4e3c7d142f45a7c3ea52b85dae6a53822ca76d434e29a7a116b3ee84b600528e.mp4