What's the gossip model?
nostr:nevent1qqsdvgepgcdwya7022f3tgd9m92u4zyxgx2m976fssepkf9hszs0taqprdmhxue69uhhyetvv9ujumn0wd68yurvv438xtnrdakj7q3q8ams6ewn5aj2n3wt2qawzglx9mr4nzksxhvrdc4gzrecw7n5tvjqxpqqqqqqzuxgn3c