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Broadcast propagation

NIP-QW14. Relay is node-to-node: each message type propagates hop by hop under its own policy — how far it travels, how old and how large it may be, how wide each hop fans it out, the minimum folded hop-score to keep relaying, and how long a hop's signed score is reused before it is recomputed. These are the stock defaults a node ships; a relaying node edits its own copy in its client config.

typehopsmax agemax sizefan-outscore floorhop-rating TTLrate/day
proposalProposal — an open job call37 d8 KiB31.03 d50
demandDemand — work wanted414 d4 KiB30.93 d20
profileProfile push330 d16 KiB21.07 d5
newsNews630 d32 KiB40.87 d10
reviewReview490 d8 KiB31.13 d20

The coordination server at /api/broadcast is a fan-out-0 rendezvous — it holds valid envelopes and hop-ratings for nodes that were offline when a broadcast passed, and makes no relay decision of its own.