Dandelion++ (BIP156) A tx broadcast privacy enhancement. Without Dandelion, tx broadcast to all your peers immediately = first peer with chain analytics can infer your IP. Mechanism Two phases: Stem phase (anonymity) When you create a new tx: - With probability p (default 0.9), forward to one randomly selected peer (the "stem peer"). - That peer also forwards to one of their peers, with probability p. - The "stem path" continues for 3-10 hops on average (depends on p). During stem, only the chain of forwarders sees the tx. Fluff phase (broadcast) - With probability 1-p, the current stem peer…