CD198: JUSTIN - FEDIMINT UPDATE

Justin, a prolific contributor to the Fedimint open source project, returns for a six month update. Fedimint is an open protocol providing easy to use, private, programmable, and offline bitcoin payments using bitcoin powered federated chaumian ecash.Justin on Nostr: https://primal.net/p/nprofile1qqspg8fq209jj56663d2n6r9ehkyjffy7rkqqejfdwvtwzva426avkqxtxxuvFedimint Website: https://fedimint.org/Fedimint on X: https://x.com/fedimintThe Ecash App: https://ecash.love/Fedimint Observer: https://observer.fedimint.org/ Bitcoin Mints: https://bitcoinmints.com/Iroh: https://www.iroh.computer/EPISODE: 198BLOCK: 944073PRICE: 1466 sats per dollar(02:06) Justin on Fedimint updates since last visit(03:20) Ecash App vision as a Fedimint reference client(04:18) Wallet features: on-chain, lightning, ecash, and nostr integrations(06:01) Fedimint 101: federations, guardians, and multisig trust model(07:55) Uptime vs. rug risk and Byzantine fault tolerance in practice(09:18) Making guardianship easier and raising operational reliability(10:14) Ecash App status, platforms, backups via nostr, and seed UX(13:16) Mint/federation selection challenges and web-of-trust ideas(15:39) Observability tools and on-chain vs. Lightning differences(16:20) Running a Guardian on Start9: setup and backups(19:39) Networking with Iroh: DNS removal, privacy, and Tor/VPN plans(23:14) Lightning gateways: roles, trust, liquidity, and multi-federation ops(27:59) Gateway UX: multiple gateways, auto-switching, and agents help(29:01) Gateway pairing and funding flows for Start9 deployments(32:24) Guardians on Android phones: why, how, and trade-offs(37:30) Blockchain backends: Bitcoin Core vs. Esplora defaults(39:30) Mobile data, heat, and practical considerations(39:34) Agentic payments and why eCash fits well for agents(43:40) Local communities, AI models, and community services vision(46:06) Real-world adoption, roadmap, modules, and BOLT12 plans(48:50) BOLT12 receive-side challenges and trust model nuances(50:26) Pragmatic trust, permissioned gateways, and next steps(50:37) How listeners can help and contact info(51:18) Start9 v0.4.0 update chatter and flashing war stories(53:01) Closing thoughts, progress praise, and sign-offmore info on the show: https://citadeldispatch.comlearn more about me: https://odell.xyzmonitor the situation: https://citadelwire.com

Episode metadata supplied by the publisher feed · Published Apr 7, 2026

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