{"$schema": "https://c3voc.de/schedule/schema.json", "generator": {"name": "pretalx", "version": "2026.1.1", "url": "https://program.freedomtechsummit.com"}, "schedule": {"url": "https://program.freedomtechsummit.com/fts2026/schedule/", "version": "0.14", "base_url": "https://program.freedomtechsummit.com", "conference": {"acronym": "fts2026", "title": "Freedom Tech Summit", "start": "2026-06-10", "end": "2026-06-10", "daysCount": 1, "timeslot_duration": "00:05", "time_zone_name": "Europe/Prague", "colors": {"primary": "#101010"}, "rooms": [{"name": "Vienna (\u2191 upstairs)", "slug": "5846-vienna-upstairs", "guid": "bfd7d305-0914-5310-a8e6-06e95dcfc6f1", "description": null, "capacity": null}, {"name": "Prague East (\u2191 upstairs)", "slug": "5417-prague-east-upstairs", "guid": "74308b12-5721-509e-af5d-ff33b41b95ae", "description": null, "capacity": null}, {"name": "Prague West (\u2191 upstairs)", "slug": "5418-prague-west-upstairs", "guid": "d4f386f8-1062-5f99-89ed-551a4d563d6d", "description": null, "capacity": null}, {"name": "Berlin (\u2191 upstairs)", "slug": "5419-berlin-upstairs", "guid": "216de13b-6015-5979-bfe1-2d9cd442c499", "description": null, "capacity": null}, {"name": "Stockholm (\u2191 upstairs)", "slug": "5420-stockholm-upstairs", "guid": "35f44942-6ee5-5acc-8b54-e4c394f8fd9c", "description": null, "capacity": null}, {"name": "London (\u2193 downstairs)", "slug": "5845-london-downstairs", "guid": "8f93dac3-4c13-5615-879c-8c0c91162586", "description": null, "capacity": null}, {"name": "Zurich (\u2191 upstairs)", "slug": "5421-zurich-upstairs", "guid": "4d458d16-d193-5fe0-85fa-873053226f15", "description": null, "capacity": null}, {"name": "Amsterdam (\u2193 downstairs)", "slug": "5422-amsterdam-downstairs", "guid": "98d67b4b-af7d-5415-b24c-e0593bc1f646", "description": "\u2193 downstairs", "capacity": null}], "tracks": [{"name": "Bitcoin Track", "slug": "6891-bitcoin-track", "color": "#f7931a"}, {"name": "Nostr Track", "slug": "6892-nostr-track", "color": "#8d45dd"}, {"name": "Philosophy Track", "slug": "6893-philosophy-track", "color": "#000eff"}, {"name": "Resilience Track", "slug": "6894-resilience-track", "color": "#00ff41"}, {"name": "Design Track", "slug": "6900-design-track", "color": "#ff0000"}, {"name": "Organizator Track", "slug": "7307-organizator-track", "color": "#555555"}], "days": [{"index": 1, "date": "2026-06-10", "day_start": "2026-06-10T04:00:00+02:00", "day_end": "2026-06-11T03:59:00+02:00", "rooms": {"Vienna (\u2191 upstairs)": [{"guid": "b3e9f18d-6381-590d-b900-5f76ed57b51e", "code": "XBXDEH", "id": 97852, "logo": null, "date": "2026-06-10T12:00:00+02:00", "start": "12:00", "duration": "03:00", "room": "Vienna (\u2191 upstairs)", "slug": "fts2026-97852-lunch-and-chat", "url": "https://program.freedomtechsummit.com/fts2026/talk/XBXDEH/", "title": "Lunch and Chat", "subtitle": "", "track": "Organizator Track", "type": "Workshop (2 hours)", "language": "en", "abstract": "Lunch and Chat", "description": null, "recording_license": "", "do_not_record": false, "persons": [], "links": [], "feedback_url": "https://program.freedomtechsummit.com/fts2026/talk/XBXDEH/feedback/", "origin_url": "https://program.freedomtechsummit.com/fts2026/talk/XBXDEH/", "attachments": []}], "Prague East (\u2191 upstairs)": [{"guid": "53ee297d-bdff-5af2-9823-0a7085481dfc", "code": "XQKUWA", "id": 97840, "logo": null, "date": "2026-06-10T09:00:00+02:00", "start": "09:00", "duration": "00:15", "room": "Prague East (\u2191 upstairs)", "slug": "fts2026-97840-welcome-to-freedom-tech-summit", "url": "https://program.freedomtechsummit.com/fts2026/talk/XQKUWA/", "title": "Welcome to Freedom Tech Summit!", "subtitle": "", "track": "Organizator Track", "type": "Talk", "language": "en", "abstract": "Welcome to Freedom Tech Summit!", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "7MLLML", "name": "Pavol Rusnak", "avatar": "https://program.freedomtechsummit.com/media/avatars/7MLLML_jHlRd5x.webp", "biography": "Pavol Rusnak is a pioneering cypherpunk and co-founder of SatoshiLabs, the company behind the world-renowned Trezor hardware wallet. 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Anthony\u2019s research covers a wide range of topics within the field of monetary and financial economics, including central bank digital currency (CBDC), financial privacy, cryptocurrency, and the use of money in society. 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Enjoyer of volatility, swimmer in uncertainty.", "public_name": "Juraj", "guid": "6ac20730-993f-559c-b439-d947415f9a34", "url": "https://program.freedomtechsummit.com/fts2026/speaker/SJJQ3H/"}], "links": [], "feedback_url": "https://program.freedomtechsummit.com/fts2026/talk/3GXTVF/feedback/", "origin_url": "https://program.freedomtechsummit.com/fts2026/talk/3GXTVF/", "attachments": []}, {"guid": "6735b9e6-996d-5624-938f-0a79226bde3a", "code": "EUZZGP", "id": 97545, "logo": null, "date": "2026-06-10T12:40:00+02:00", "start": "12:40", "duration": "00:30", "room": "Prague East (\u2191 upstairs)", "slug": "fts2026-97545-bolting-bitcoin-into-games-with-ram-hacks", "url": "https://program.freedomtechsummit.com/fts2026/talk/EUZZGP/", "title": "Bolting Bitcoin Into Games With RAM Hacks!", "subtitle": "", "track": "Bitcoin Track", "type": "Keynote", "language": "en", "abstract": "Learn how to bridge the gap between RAM offsets and the Lightning Network. This session demonstrates how to use memory injection to hook into a game\u2019s internal state - like score or inventory - and trigger real-time bitcoin payments using a Lightning Address. We'll skip the source code and go straight for the RAM to turn binaries into a bitcoin-native experience.", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "Q9UADZ", "name": "D++", "avatar": "https://program.freedomtechsummit.com/media/avatars/CPCTH8_Y1K97NW.webp", "biography": "Bitcoin Fungineer", "public_name": "D++", "guid": "4ba06d06-372d-557e-b491-3bb5a3383d83", "url": "https://program.freedomtechsummit.com/fts2026/speaker/Q9UADZ/"}], "links": [], "feedback_url": "https://program.freedomtechsummit.com/fts2026/talk/EUZZGP/feedback/", "origin_url": "https://program.freedomtechsummit.com/fts2026/talk/EUZZGP/", "attachments": []}, {"guid": "93e63245-f419-5d5c-9445-cb712c767227", "code": "3MZFRF", "id": 97068, "logo": null, "date": "2026-06-10T13:20:00+02:00", "start": "13:20", "duration": "00:20", "room": "Prague East (\u2191 upstairs)", "slug": "fts2026-97068-coinjoin-ecosystem-insights-for-wasabi-1-x-wasabi-2-x-and-whirlpool-coordinator-based-privacy-mixers", "url": "https://program.freedomtechsummit.com/fts2026/talk/3MZFRF/", "title": "CoinJoin ecosystem insights for Wasabi 1.x, Wasabi 2.x and Whirlpool coordinator-based privacy mixers", "subtitle": "", "track": "Bitcoin Track", "type": "Talk", "language": "en", "abstract": "Existing studies of coinjoin ecosystem offer little information beyond tx detection and aggregation of stats visible on-chain. The talk explain combination of on-chain tx analysis, coordinators monitoring, and active coinjoin participation to: 1) estimate the number of active users at a time, 2) detect previously unknown coordinators, 3) retrospectively observe prominent activity patterns and 4) deliver continuously updated ecosystem insights at https://crocs-muni.github.io/coinjoin/. The goal is to support informed decisions by coinjoin end-users.", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "X3JZWS", "name": "Petr Svenda", "avatar": "https://program.freedomtechsummit.com/media/avatars/JRMJBX_3GS67fg.webp", "biography": "Security researcher and teacher at Masaryk University, interested in the extent of real-world usage and the internal properties of different CoinJoin designs - in addition to the analysis of the security of cryptographic hardware and software implementations for over 20 years.", "public_name": "Petr Svenda", "guid": "4ca5e4bd-135c-5de1-84c2-fee15f7b5aff", "url": "https://program.freedomtechsummit.com/fts2026/speaker/X3JZWS/"}], "links": [], "feedback_url": "https://program.freedomtechsummit.com/fts2026/talk/3MZFRF/feedback/", "origin_url": "https://program.freedomtechsummit.com/fts2026/talk/3MZFRF/", "attachments": []}, {"guid": "46dfb229-f8d3-5c8d-b38e-413efb96f563", "code": "7MSYQY", "id": 97896, "logo": null, "date": "2026-06-10T13:50:00+02:00", "start": "13:50", "duration": "00:30", "room": "Prague East (\u2191 upstairs)", "slug": "fts2026-97896-what-guards-the-integrity-of-your-pockets", "url": "https://program.freedomtechsummit.com/fts2026/talk/7MSYQY/", "title": "What guards the integrity of your pockets", "subtitle": "", "track": "Resilience Track", "type": "Keynote", "language": "en", "abstract": "Rather, what assures the integrity IN your pockets. Smart cards and secure elements.  A deep-dive of \"why?\" and \"how?\" into the abyss of Java Cards and Global Platform, the dominant technologies that secures everything and anything from border crossings, phone calls and fiat payments to bitcoin wallets. From snorkelling among the colourful fish, to the untouched dark depths of the ocean ... with an empty can of SPAM.", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "UQAFRY", "name": "Martin Paljak", "avatar": "https://program.freedomtechsummit.com/media/avatars/YEQKZW_l6pvpwT.webp", "biography": "Martin (from Estonia) has been building open source things that deal with hardware and/or key management since last century.  If you use smart cards on an open source operating system, there is probably a few lines of code in the execution path that were written by him.", "public_name": "Martin Paljak", "guid": "ed800126-8c1f-5df6-92c6-8fc29e3ea051", "url": "https://program.freedomtechsummit.com/fts2026/speaker/UQAFRY/"}], "links": [], "feedback_url": "https://program.freedomtechsummit.com/fts2026/talk/7MSYQY/feedback/", "origin_url": "https://program.freedomtechsummit.com/fts2026/talk/7MSYQY/", "attachments": []}, {"guid": "1cd43556-74da-511d-a68b-1052c326cee5", "code": "CDSTCB", "id": 96788, "logo": null, "date": "2026-06-10T14:30:00+02:00", "start": "14:30", "duration": "00:30", "room": "Prague East (\u2191 upstairs)", "slug": "fts2026-96788-fraud-proofs-for-just-in-time-channels", "url": "https://program.freedomtechsummit.com/fts2026/talk/CDSTCB/", "title": "Fraud Proofs for Just-in-Time Channels", "subtitle": "", "track": "Bitcoin Track", "type": "Keynote", "language": "en", "abstract": "The game theory of just-in-time channels could be improved using fraud proofs: proofs that a LSP stole funds instead of opening a Lightning channel. The difficulty lies with the requirement for the proof to be public, without having to trust the victim. To solve this, we propose to use the blockchain as an arbitration layer. This results in a protocol where client and the LSP do not need to trust each other.\n\nFull article: https://delvingbitcoin.org/t/proposal-public-fraud-proofs-for-just-in-time-channels/2451", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "TYFR3K", "name": "ThomasV", "avatar": null, "biography": "Electrum founder", "public_name": "ThomasV", "guid": "a7852488-0151-5855-88d2-c26f98fc7042", "url": "https://program.freedomtechsummit.com/fts2026/speaker/TYFR3K/"}], "links": [], "feedback_url": "https://program.freedomtechsummit.com/fts2026/talk/CDSTCB/feedback/", "origin_url": "https://program.freedomtechsummit.com/fts2026/talk/CDSTCB/", "attachments": []}, {"guid": "b7cbdab8-a9d6-5e5d-a5f7-7efff30193cc", "code": "EMJZAE", "id": 96954, "logo": null, "date": "2026-06-10T15:10:00+02:00", "start": "15:10", "duration": "00:30", "room": "Prague East (\u2191 upstairs)", "slug": "fts2026-96954-electrum-wallet-submarine-swaps", "url": "https://program.freedomtechsummit.com/fts2026/talk/EMJZAE/", "title": "Electrum Wallet Submarine Swaps", "subtitle": "", "track": "Nostr Track", "type": "Keynote", "language": "en", "abstract": "Nostr based Submarine Swap marketplace of Electrum Wallet.\n* Development and growth\n* Future plans\n* Privacy benefits", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "CGJZVD", "name": "Felix", "avatar": "https://program.freedomtechsummit.com/media/avatars/JHE8H7_RchwGYv.webp", "biography": "Software Developer @ Electrum Wallet", "public_name": "Felix", "guid": "9e38580a-1024-5ac0-97cd-ed11dd4016b2", "url": "https://program.freedomtechsummit.com/fts2026/speaker/CGJZVD/"}], "links": [], "feedback_url": "https://program.freedomtechsummit.com/fts2026/talk/EMJZAE/feedback/", "origin_url": "https://program.freedomtechsummit.com/fts2026/talk/EMJZAE/", "attachments": []}, {"guid": "eed4595e-d28f-58b7-a0e0-bf31a7d1b781", "code": "BPX7R9", "id": 90806, "logo": null, "date": "2026-06-10T15:50:00+02:00", "start": "15:50", "duration": "00:30", "room": "Prague East (\u2191 upstairs)", "slug": "fts2026-90806-confidential-computing-for-freedom-tech", "url": "https://program.freedomtechsummit.com/fts2026/talk/BPX7R9/", "title": "Confidential computing for freedom tech", "subtitle": "", "track": "Resilience Track", "type": "Keynote", "language": "en", "abstract": "Advances in confidential computing have enabled wider use cases and deployment into broader freedom tech space. Verifiable software and confidentiality of data in use creates another layer of protection and privacy, both for users and service providers. The talk is meant to explain what the benefits are, what types of projects can benefit from it and how the entire community can benefit from added protection and assurance. \nFurther info:\nhttps://primal.net/aljaz/the-end-of-trust-me-bro---confidential-computing-for-everyone", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "PXH7UU", "name": "aljaz", "avatar": null, "biography": "Freedom maximalist and cypherpunk founder on a mission to build the tools for a better future.", "public_name": "aljaz", "guid": "7137c4bb-7f21-598c-bafa-01bd6b8a7e47", "url": "https://program.freedomtechsummit.com/fts2026/speaker/PXH7UU/"}], "links": [], "feedback_url": "https://program.freedomtechsummit.com/fts2026/talk/BPX7R9/feedback/", "origin_url": "https://program.freedomtechsummit.com/fts2026/talk/BPX7R9/", "attachments": []}, {"guid": "edc1496e-0cb8-5013-b987-d69b058e3e56", "code": "HESBW3", "id": 92063, "logo": null, "date": "2026-06-10T16:30:00+02:00", "start": "16:30", "duration": "00:30", "room": "Prague East (\u2191 upstairs)", "slug": "fts2026-92063-what-brazil-s-pix-teaches-the-world-about-payment-privacy", "url": "https://program.freedomtechsummit.com/fts2026/talk/HESBW3/", "title": "What Brazil's Pix Teaches the World About Payment Privacy", "subtitle": "", "track": "Philosophy Track", "type": "Keynote", "language": "en", "abstract": "Brazil's Pix system has achieved remarkable financial inclusion, but at a hidden cost: by enabling personal identifiers, such as phone numbers and tax IDs, to be used as payment keys, **the system has essentially created the perfect conditions for an epidemic of fraud**. The lesson is clear: **privacy is essential infrastructure**, not an optional extra.", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "HFGNBF", "name": "Paulo Sacramento", "avatar": "https://program.freedomtechsummit.com/media/avatars/9TTNAB_B2r6Vbx.webp", "biography": "Paulo Sacramento is a Germany-based UX designer and researcher working at the intersection of privacy, usability, and Bitcoin. He has contributed to the Bitcoin design community with support from the Human Rights Foundation, and his work focuses on turning complex systems into experiences people can actually trust.", "public_name": "Paulo Sacramento", "guid": "58bd84eb-8fc5-5826-bcfa-a99a6c8abaff", "url": "https://program.freedomtechsummit.com/fts2026/speaker/HFGNBF/"}], "links": [], "feedback_url": "https://program.freedomtechsummit.com/fts2026/talk/HESBW3/feedback/", "origin_url": "https://program.freedomtechsummit.com/fts2026/talk/HESBW3/", "attachments": []}, {"guid": "d787e9ec-ab9e-5b18-89e5-478e185ade02", "code": "VEYAME", "id": 95211, "logo": null, "date": "2026-06-10T17:10:00+02:00", "start": "17:10", "duration": "00:30", "room": "Prague East (\u2191 upstairs)", "slug": "fts2026-95211-protecting-your-family-with-taproot", "url": "https://program.freedomtechsummit.com/fts2026/talk/VEYAME/", "title": "Protecting Your Family with Taproot", "subtitle": "", "track": "Bitcoin Track", "type": "Keynote", "language": "en", "abstract": "Bitcoin is self-custody money\u2014if keys are lost, funds are gone forever.  \nInheritance remains an unsolved problem.\n\nExisting approaches (seed sharing, multisig, custodians) have trade-offs in security, privacy, and usability.\n\nOur approach uses Taproot:\n- Key-path: normal use via single or MuSig2 signature\n- Script-path: inheritance via timelock (CLTV) + heir signature\n- Hidden policies: only executed paths are revealed (MAST)\n\nThis provides strong privacy, lower fees, and flexible design.\n\n\ud83d\udc49 Taproot enables invisible, secure inheritance.", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "SJLT8K", "name": "Louis Ko", "avatar": "https://program.freedomtechsummit.com/media/avatars/YDGCHW_5EY8UOo.webp", "biography": "Bitcoin developer and creator of Coconut Wallet(www.coconut.onl).\nCEO of NonceLab(www.noncelab.com), a Bitcoin-only company.\nTeaching the Bitcoin protocol at a university,\nand running Bitcoin Center Seoul(www.bitcoincenterseoul.com).", "public_name": "Louis Ko", "guid": "aae6dfd6-c28a-59a8-925b-c85a7e792383", "url": "https://program.freedomtechsummit.com/fts2026/speaker/SJLT8K/"}, {"code": "U7DZSP", "name": "Maru", "avatar": null, "biography": null, "public_name": "Maru", "guid": "fc3626ce-6bad-5749-87d3-eddf6ed0325c", "url": "https://program.freedomtechsummit.com/fts2026/speaker/U7DZSP/"}], "links": [], "feedback_url": "https://program.freedomtechsummit.com/fts2026/talk/VEYAME/feedback/", "origin_url": "https://program.freedomtechsummit.com/fts2026/talk/VEYAME/", "attachments": []}, {"guid": "47740349-416d-5189-a78f-5ff7193aac04", "code": "Z8EDXL", "id": 94035, "logo": null, "date": "2026-06-10T17:50:00+02:00", "start": "17:50", "duration": "01:00", "room": "Prague East (\u2191 upstairs)", "slug": "fts2026-94035-we-creators", "url": "https://program.freedomtechsummit.com/fts2026/talk/Z8EDXL/", "title": "We Creators", "subtitle": "", "track": "Philosophy Track", "type": "Keynote", "language": "en", "abstract": "How to be non-standard and still obtain fulfillment: Personally, in a family life, and in a creative life. What works, what satisfies, what doesn't, and why.", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "YKLGGM", "name": "Paul Rosenberg", "avatar": "https://program.freedomtechsummit.com/media/avatars/MAE8BX_04Q9MdU.webp", "biography": "Cryptography advocate since the 1990s, co-founder of Cryptohippie, author of the Free-Man's Perspective newsletter, etc.", "public_name": "Paul Rosenberg", "guid": "e1aeae35-01c0-533a-9011-4f89d3532fe9", "url": "https://program.freedomtechsummit.com/fts2026/speaker/YKLGGM/"}], "links": [], "feedback_url": "https://program.freedomtechsummit.com/fts2026/talk/Z8EDXL/feedback/", "origin_url": "https://program.freedomtechsummit.com/fts2026/talk/Z8EDXL/", "attachments": []}, {"guid": "13238f5a-f5b9-5821-9895-90edd95e3893", "code": "77HZMS", "id": 100603, "logo": null, "date": "2026-06-10T20:00:00+02:00", "start": "20:00", "duration": "03:00", "room": "Prague East (\u2191 upstairs)", "slug": "fts2026-100603-freedom-tech-summit-afterparty-at-altenburg-1964", "url": "https://program.freedomtechsummit.com/fts2026/talk/77HZMS/", "title": "Freedom Tech Summit Afterparty at Altenburg 1964", "subtitle": "", "track": "Organizator Track", "type": "Afterparty", "language": "en", "abstract": "Official Freedom Tech Summit afterparty at the boat!\n\nCome to the legendary boat Altenburg 1964\n- Google Maps: https://maps.app.goo.gl/gHMe5SeHypopYxcu6\n- Apple Maps: https://maps.apple/p/~nLnc16ZGYkGq6\n- OpenStreetMap: https://www.openstreetmap.org/way/679349415", "description": null, "recording_license": "", "do_not_record": false, "persons": [], "links": [], "feedback_url": "https://program.freedomtechsummit.com/fts2026/talk/77HZMS/feedback/", "origin_url": "https://program.freedomtechsummit.com/fts2026/talk/77HZMS/", "attachments": []}], "Prague West (\u2191 upstairs)": [{"guid": "735c3112-02c3-590f-9763-0ccf731e6c60", "code": "777LVR", "id": 92594, "logo": null, "date": "2026-06-10T09:20:00+02:00", "start": "09:20", "duration": "00:30", "room": "Prague West (\u2191 upstairs)", "slug": "fts2026-92594-math-as-a-pathway-to-sovereignty", "url": "https://program.freedomtechsummit.com/fts2026/talk/777LVR/", "title": "Math as a Pathway to Sovereignty", "subtitle": "", "track": "Philosophy Track", "type": "Keynote", "language": "en", "abstract": "We learn the phrase \"Don't Trust, Verify\" but even if we really want to, all but a small handful of people are capable of verifying all there is behind Bitcoin.  This makes us 2nd class citizens subject to trusting the few who do get it.  I am out to change that.\n\nI have used AI to build a stack of math education tools designed to get people from basic arithmetic to understanding ECDSA and Schnorr signatures.  The stack includes a podcast, online courses, textbooks, and video.", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "C3RBK7", "name": "Brian Hirschfield", "avatar": "https://program.freedomtechsummit.com/media/avatars/ZYSTPL_vxHfoB6.webp", "biography": "Brian Hirschfield is the author of Bitcoin for Institutions and the founder of the Magic Internet Math Academy, making rigorous mathematics accessible to the Bitcoin community. As an actuary and quant, Brian brings nearly three decades of institutional experience to his work at the intersection of finance, mathematics, and Bitcoin.\n\nBrian is on a mission to bridge the gap between institutional rigor and individual sovereignty.  His conviction is simple and uncompromising: if you don't know the math, you're a second-class citizen.in Bitcoin.", "public_name": "Brian Hirschfield", "guid": "f8d10620-c444-5ee7-aa9b-db342c2631d1", "url": "https://program.freedomtechsummit.com/fts2026/speaker/C3RBK7/"}], "links": [{"title": "Magic Internet Math Website", "url": "http://magicinternetmath.com", "type": "related"}, {"title": "Magic Internet Math Youtube", "url": "https://www.youtube.com/channel/UCqRZkLVh7SLAhMorhH3G6Qg", "type": "related"}], "feedback_url": "https://program.freedomtechsummit.com/fts2026/talk/777LVR/feedback/", "origin_url": "https://program.freedomtechsummit.com/fts2026/talk/777LVR/", "attachments": []}, {"guid": "e5b18488-81ff-57e3-b19a-8f31e1d0171f", "code": "EH8TRJ", "id": 95503, "logo": null, "date": "2026-06-10T10:00:00+02:00", "start": "10:00", "duration": "00:40", "room": "Prague West (\u2191 upstairs)", "slug": "fts2026-95503-panel-building-on-nostr-hype-vs-reality", "url": "https://program.freedomtechsummit.com/fts2026/talk/EH8TRJ/", "title": "Panel: Building on Nostr - Hype vs Reality", "subtitle": "", "track": "Nostr Track", "type": "Panel", "language": "en", "abstract": "Nostr is one of the most talked-about protocols in Bitcoin. **Praised for censorship resistance**, **questioned for scalability and UX**.\n\n**Panelists**: Aleksandar Svetski (Satlantis), Max Hillebrand (cypherpunk) and Denis Zaliskyi (Synonym/Pubky)\n**Moderator**: Jordi Llonch (Barcelona)\n\nTopics:\n- The trade-offs between decentralization, usability and performance\n- Whether Nostr can compete with or complement existing platforms\n- The role of Bitcoin-native identity and communication layers\n- Lessons learned from builders on the front lines", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "7ANSPU", "name": "Jordi Llonch Esteve", "avatar": "https://program.freedomtechsummit.com/media/avatars/8Y3NKR_eS7B9Hs.webp", "biography": "Jordi is the Head of Growth at Satlantis.io, the bitcoin-native events app built using Nostr & Bitcoin. A former airline pilot turned entrepreneur, Jordi co-organizes the Barcelona Bitcoin community, the most vibrant community in Spain and helps other event organizers launch, grow and monetize their communities through IRL events.", "public_name": "Jordi Llonch Esteve", "guid": "140656f0-9540-5f2e-861a-ede919144bd7", "url": "https://program.freedomtechsummit.com/fts2026/speaker/7ANSPU/"}, {"code": "RBVN89", "name": "Max", "avatar": "https://program.freedomtechsummit.com/media/avatars/SZNDQT_3x9YgiE.webp", "biography": "Cypherpunk", "public_name": "Max", "guid": "4df54ac3-caa7-5095-8a61-abf2399a95ba", "url": "https://program.freedomtechsummit.com/fts2026/speaker/RBVN89/"}, {"code": "YJVWTX", "name": "Aleksandar Svetski", "avatar": "https://program.freedomtechsummit.com/media/avatars/T7YH78_4wlaHyq.webp", "biography": "Writer & Builder.\n\nAleksandar is the Author of the best selling \u201cUnCommunist Manifesto\u201d and the \"Bushido of Bitcoin\u201d.  He's the co founder of Satlantis: the platform for IRL communities and events.", "public_name": "Aleksandar Svetski", "guid": "d35d7bff-7a84-5f71-9b4e-327734b177f0", "url": "https://program.freedomtechsummit.com/fts2026/speaker/YJVWTX/"}, {"code": "EEEDCG", "name": "Denis", "avatar": "https://program.freedomtechsummit.com/media/avatars/DRQR9S_fMfpjkF.webp", "biography": "Jack of all traits, master of some at Synonym. Mostly engineering.", "public_name": "Denis", "guid": "847a6672-9231-5f34-a3b1-60626a557750", "url": "https://program.freedomtechsummit.com/fts2026/speaker/EEEDCG/"}], "links": [], "feedback_url": "https://program.freedomtechsummit.com/fts2026/talk/EH8TRJ/feedback/", "origin_url": "https://program.freedomtechsummit.com/fts2026/talk/EH8TRJ/", "attachments": []}, {"guid": "90f1d623-0ac3-5c78-96ac-264a784a5a56", "code": "87UB3N", "id": 93061, "logo": null, "date": "2026-06-10T10:50:00+02:00", "start": "10:50", "duration": "00:30", "room": "Prague West (\u2191 upstairs)", "slug": "fts2026-93061-building-the-free-internet-mesh-core-identity-decentralized-apps", "url": "https://program.freedomtechsummit.com/fts2026/talk/87UB3N/", "title": "Building the free internet: Mesh(Core), identity, decentralized apps", "subtitle": "", "track": "Resilience Track", "type": "Keynote", "language": "en", "abstract": "Internet is broken. Login with accounts. Decentralized network relying on domain names. Censorship. Internet blackouts ordered by governments. But 2026 is the year of cryptoanarchy and freedom tech. We have all the building blocks to make technology work for us. It's not sometime in the future, it's now. I'll talk about some experiments: bridging MeshCore and Bitchat networks, web apps without backend, decentralized identity and the plumbing.", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "SJJQ3H", "name": "Juraj", "avatar": "https://program.freedomtechsummit.com/media/avatars/8RZBNP_wI9W9jY.webp", "biography": "Juraj is an educator, book author, coder, cryptoanarchist. He helps people turn off statism in their own heads and disconnect their brains from the hierarchies of the world. He is a co-founder of Paraleln\u00e1 Polis, several companies and author of the books Cryptocurrencies - Hack your way to a better life, cypherpunk novel Tamers of Entropy. Enjoyer of volatility, swimmer in uncertainty.", "public_name": "Juraj", "guid": "6ac20730-993f-559c-b439-d947415f9a34", "url": "https://program.freedomtechsummit.com/fts2026/speaker/SJJQ3H/"}], "links": [], "feedback_url": "https://program.freedomtechsummit.com/fts2026/talk/87UB3N/feedback/", "origin_url": "https://program.freedomtechsummit.com/fts2026/talk/87UB3N/", "attachments": []}, {"guid": "39183b50-0879-5f1c-ac5a-e3c57b254d11", "code": "L9JJP8", "id": 96927, "logo": null, "date": "2026-06-10T11:30:00+02:00", "start": "11:30", "duration": "00:30", "room": "Prague West (\u2191 upstairs)", "slug": "fts2026-96927-fips-a-transport-agnostic-mesh-network", "url": "https://program.freedomtechsummit.com/fts2026/talk/L9JJP8/", "title": "FIPS - A transport-agnostic mesh network", "subtitle": "", "track": "Resilience Track", "type": "Keynote", "language": "en", "abstract": "FIPS is a self-organizing encrypted mesh that addresses npubs over any medium you can send packets through.\n\nTransport agnostic - WiFi, Ethernet, Bluetooth, UDP, TCP, Tor, Serial, Nostr.\nExisting apps work unmodified via IPv6 TUN adapter.\nNostr keypair is your address - no registrars, no authorities", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "739SHZ", "name": "Arjen", "avatar": "https://program.freedomtechsummit.com/media/avatars/JJ8U7X_p8lBjJT.webp", "biography": "Arjen works on Nostr-based tech that removes middlemen.\n\n- TollGate\n- FIPS\n- NoDNS\n- Loom", "public_name": "Arjen", "guid": "7064074a-9d89-5c05-96da-d2b76b8ab919", "url": "https://program.freedomtechsummit.com/fts2026/speaker/739SHZ/"}], "links": [], "feedback_url": "https://program.freedomtechsummit.com/fts2026/talk/L9JJP8/feedback/", "origin_url": "https://program.freedomtechsummit.com/fts2026/talk/L9JJP8/", "attachments": []}, {"guid": "f9d29c26-56d0-5429-960a-3c00bfd32260", "code": "YVUBHM", "id": 96552, "logo": null, "date": "2026-06-10T12:10:00+02:00", "start": "12:10", "duration": "00:20", "room": "Prague West (\u2191 upstairs)", "slug": "fts2026-96552-bitcoin-core-fee-rate-estimator-u-i-demo-https-bitcoincorefeerate-com", "url": "https://program.freedomtechsummit.com/fts2026/talk/YVUBHM/", "title": "Bitcoin Core Fee Rate Estimator U.I Demo - https://bitcoincorefeerate.com", "subtitle": "", "track": "Bitcoin Track", "type": "Talk", "language": "en", "abstract": "Demo of Bitcoin Core Fee Rate Estimator and Fee Estimation Benchmarks.\nDemo of Cluster Mempool Fee Rate Diagram UI.\n\nhttps://bitcoincorefeerate.com", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "37URUN", "name": "Abubakar Sadiq Ismail", "avatar": "https://program.freedomtechsummit.com/media/avatars/AHWAFN_j0ObnSh.webp", "biography": "A full-time Bitcoin Core contributor,sponsored by Btrust and 2140, with a background in Computer Science from Modibbo Adama University in Nigeria.  Since March 2023, he has focused on fee rate estimation, the mempool component, and other core areas of the bitcoin node software. In 2024, he interned at Chaincode Labs. \nAlongside his technical contributions, he mentors new developers through Btrust Builders and Summer of Bitcoin, and occasionally hosts the Bitcoin Core PR Review Club.", "public_name": "Abubakar Sadiq Ismail", "guid": "7fb11d7f-1346-555b-b4e4-5ff91eb8a331", "url": "https://program.freedomtechsummit.com/fts2026/speaker/37URUN/"}], "links": [], "feedback_url": "https://program.freedomtechsummit.com/fts2026/talk/YVUBHM/feedback/", "origin_url": "https://program.freedomtechsummit.com/fts2026/talk/YVUBHM/", "attachments": []}, {"guid": "bea25d21-9d32-5a73-b8d7-8b0f4c9c04fc", "code": "39YC93", "id": 92186, "logo": null, "date": "2026-06-10T12:40:00+02:00", "start": "12:40", "duration": "00:30", "room": "Prague West (\u2191 upstairs)", "slug": "fts2026-92186-what-wasabi-taught-me-about-messaging", "url": "https://program.freedomtechsummit.com/fts2026/talk/39YC93/", "title": "What Wasabi Taught Me About Messaging", "subtitle": "", "track": "Nostr Track", "type": "Keynote", "language": "en", "abstract": "At Wasabi Wallet I pushed for years to move the team off Slack, but switching cost was too high and nobody moved. When that infrastructure was compromised, we paid the price.\n\nMarmot is a messaging protocol you can add to any Nostr client. Build your own interface, customize the workflow, keep encrypted groups interoperable across every app that implements it. Users stay because the UX fits them, not because they are locked in. This talk covers the MDK and what it takes to integrate Marmot into your app.", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "RBVN89", "name": "Max", "avatar": "https://program.freedomtechsummit.com/media/avatars/SZNDQT_3x9YgiE.webp", "biography": "Cypherpunk", "public_name": "Max", "guid": "4df54ac3-caa7-5095-8a61-abf2399a95ba", "url": "https://program.freedomtechsummit.com/fts2026/speaker/RBVN89/"}], "links": [], "feedback_url": "https://program.freedomtechsummit.com/fts2026/talk/39YC93/feedback/", "origin_url": "https://program.freedomtechsummit.com/fts2026/talk/39YC93/", "attachments": []}, {"guid": "52b7a5c3-6dad-5922-bc36-09491651d153", "code": "XLLCXS", "id": 95538, "logo": null, "date": "2026-06-10T13:20:00+02:00", "start": "13:20", "duration": "00:30", "room": "Prague West (\u2191 upstairs)", "slug": "fts2026-95538-the-emulator-covenants-without-a-softfork", "url": "https://program.freedomtechsummit.com/fts2026/talk/XLLCXS/", "title": "The Emulator - Covenants without a softfork", "subtitle": "", "track": "Bitcoin Track", "type": "Keynote", "language": "en", "abstract": "For years I've chased the same goal: expressive, non-custodial Bitcoin apps requiring minimal trust.\nFirst DLCs. Then DLC channels on Lightning. Then DLCs on Arkade. Each step hit the same wall: Bitcoin Script is too limited. Transaction covenants would solve it, but a softfork is far away.\nThe Arkade Emulator brings real covenant primitives to Bitcoin today, without a softfork. Inspect outputs, verify amounts, propagate spending conditions.\nI'll talk about what this actually unlocks, what you can build with it, and where the limits are.", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "PGFAFY", "name": "Philipp", "avatar": "https://program.freedomtechsummit.com/media/avatars/KYPUP8_AFWOAkG.webp", "biography": "Philipp is a developer and co-founder of Lendasat. Since 2018 he has been building non-custodial Bitcoin infrastructure: peer-to-peer derivatives on DLC channels (10101.finance), cross-chain atomic swaps across Lightning and Arkade, and contributing to the Arkade Rust library. He has a long obsession with making Bitcoin Script do more than it can today.", "public_name": "Philipp", "guid": "c99a1795-9f69-5e1d-8f1c-3fe4bf29b4f3", "url": "https://program.freedomtechsummit.com/fts2026/speaker/PGFAFY/"}], "links": [], "feedback_url": "https://program.freedomtechsummit.com/fts2026/talk/XLLCXS/feedback/", "origin_url": "https://program.freedomtechsummit.com/fts2026/talk/XLLCXS/", "attachments": []}, {"guid": "0f17952f-3506-5df6-b17c-a4a93f89f97b", "code": "YDE7FX", "id": 97543, "logo": null, "date": "2026-06-10T14:00:00+02:00", "start": "14:00", "duration": "00:30", "room": "Prague West (\u2191 upstairs)", "slug": "fts2026-97543-between-the-platform-and-the-protocol", "url": "https://program.freedomtechsummit.com/fts2026/talk/YDE7FX/", "title": "Between the Platform and the Protocol", "subtitle": "", "track": "Philosophy Track", "type": "Keynote", "language": "en", "abstract": "Every platform makes decisions about what you see. The question isn't whether filtering happens, it's who controls it and whether switching away is a real option or a fantasy.\n\nThis talk makes the case for communities as the missing trust primitive: transparent, forkable, and accountable in ways that neither central platforms nor pure individual judgment can be. A practical framework for building software distribution that is genuinely free without being ungoverned.", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "ZEBKCH", "name": "franzap", "avatar": null, "biography": "Founder of Zapstore", "public_name": "franzap", "guid": "3edc23b3-89fe-5328-b931-8643011c3fcb", "url": "https://program.freedomtechsummit.com/fts2026/speaker/ZEBKCH/"}], "links": [], "feedback_url": "https://program.freedomtechsummit.com/fts2026/talk/YDE7FX/feedback/", "origin_url": "https://program.freedomtechsummit.com/fts2026/talk/YDE7FX/", "attachments": []}, {"guid": "329b59f8-f6ab-596c-ab9d-18b429a91891", "code": "VDNKBC", "id": 95739, "logo": null, "date": "2026-06-10T14:40:00+02:00", "start": "14:40", "duration": "00:30", "room": "Prague West (\u2191 upstairs)", "slug": "fts2026-95739-local-first-software-with-evolu", "url": "https://program.freedomtechsummit.com/fts2026/talk/VDNKBC/", "title": "Local-first software with Evolu", "subtitle": "", "track": "Resilience Track", "type": "Keynote", "language": "en", "abstract": "Most apps still treat your device as a cache and the cloud as the source of truth. Local-first flips that model. I'll start with Ink & Switch's essay and its case for ownership, offline capability, privacy, and resilience, then show how Evolu implements those ideas with SQLite, end-to-end encrypted sync, CRDT-based merging, and stateless relays. I'll end with a broader argument: the future of software is not less cloud, but a different cloud.", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "99VNPR", "name": "Daniel Steigerwald", "avatar": null, "biography": "Daniel Steigerwald is a programmer, speaker, and the creator of Evolu, an open-source local-first platform focused on privacy, resilience, and user ownership. He writes and speaks about software architecture, ownership, and the future of software that keeps users in control of their data.", "public_name": "Daniel Steigerwald", "guid": "2e0e95e5-d2d0-5ee1-b460-d26e6a1a81ff", "url": "https://program.freedomtechsummit.com/fts2026/speaker/99VNPR/"}], "links": [], "feedback_url": "https://program.freedomtechsummit.com/fts2026/talk/VDNKBC/feedback/", "origin_url": "https://program.freedomtechsummit.com/fts2026/talk/VDNKBC/", "attachments": []}, {"guid": "bfa40bd4-57c1-5a4e-873c-96186ba18588", "code": "FVX3BE", "id": 98378, "logo": null, "date": "2026-06-10T15:20:00+02:00", "start": "15:20", "duration": "00:30", "room": "Prague West (\u2191 upstairs)", "slug": "fts2026-98378-shipping-nostr-infrastructure-vpn-double-ratchet-and-hashtree", "url": "https://program.freedomtechsummit.com/fts2026/talk/FVX3BE/", "title": "Shipping Nostr Infrastructure: VPN, Double Ratchet, and Hashtree", "subtitle": "", "track": "Nostr Track", "type": "Keynote", "language": "en", "abstract": "Don\u2019t fight network effects. Build tools that are useful for one person or a small group, but can scale organically.\n\nNostr VPN is a Tailscale alternative with no third-party accounts. It runs on the Nostr-based FIPS network, using Nostr pubkeys instead of IP addresses.\n\nIris Chat is a Signal-like messenger built on Nostr Double Ratchet.\n\nHashtree is Nostr-native \u201cIPFS lite\u201d: Blossom, file chunking, directories, and encryption.", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "KGGMHE", "name": "Sirius", "avatar": "https://program.freedomtechsummit.com/media/avatars/EB9R87_qWoCKZk.webp", "biography": "Bitcoin dev in 2009-2011, Nostr dev from 2022-", "public_name": "Sirius", "guid": "d9cc686f-95b8-5871-9352-9e133ebf5741", "url": "https://program.freedomtechsummit.com/fts2026/speaker/KGGMHE/"}], "links": [], "feedback_url": "https://program.freedomtechsummit.com/fts2026/talk/FVX3BE/feedback/", "origin_url": "https://program.freedomtechsummit.com/fts2026/talk/FVX3BE/", "attachments": []}, {"guid": "d024f2a4-09ce-5495-925b-5f2c27189838", "code": "CM333B", "id": 93678, "logo": null, "date": "2026-06-10T16:00:00+02:00", "start": "16:00", "duration": "00:50", "room": "Prague West (\u2191 upstairs)", "slug": "fts2026-93678-panel-next-gen-l2s", "url": "https://program.freedomtechsummit.com/fts2026/talk/CM333B/", "title": "Panel: Next Gen L2s", "subtitle": "", "track": "Bitcoin Track", "type": "Panel", "language": "en", "abstract": "Ark, Spark, ZK rollups: how they work, what they enable, risks & trade-offs, Lightning interoperability", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "FU78L8", "name": "Veronika", "avatar": "https://program.freedomtechsummit.com/media/avatars/QDHEV7_W4tVY9Q.webp", "biography": "Veronika is a Bitcoin researcher, educator, and advocate focused on Bitcoin layer-2 protocols and scaling technologies. Her work examines their trade-offs, incentives, and security models through a mathematical and systems-oriented lens.", "public_name": "Veronika", "guid": "095642b3-e0ef-54a2-9266-1b10cce56ddc", "url": "https://program.freedomtechsummit.com/fts2026/speaker/FU78L8/"}, {"code": "Z9KFEC", "name": "Matthew Vuk", "avatar": null, "biography": "Matthew Vuk is a protocol researcher and developer at Second, working on Bark - an open-source implementation of the Ark protocol. Matthew works with a focus on developer tooling, technical communications, and bringing self-custodial Bitcoin payments to a wide audience.", "public_name": "Matthew Vuk", "guid": "91480e68-6dc2-55ab-97c5-23975f5fd99d", "url": "https://program.freedomtechsummit.com/fts2026/speaker/Z9KFEC/"}, {"code": "XWZHAQ", "name": "Robin Linus", "avatar": "https://program.freedomtechsummit.com/media/avatars/CCYS8R_FMdoWUr.webp", "biography": "Creator of BitVM and ShieldedCSV. PhD candidate at Stanford focusing on improving scalability, privacy, and usability of Bitcoin payments.", "public_name": "Robin Linus", "guid": "e2f10bdb-d41d-5e87-814b-3bb006249898", "url": "https://program.freedomtechsummit.com/fts2026/speaker/XWZHAQ/"}, {"code": "VZ3RXK", "name": "Kukks", "avatar": "https://program.freedomtechsummit.com/media/avatars/N7NLWJ_kdHXOR4.webp", "biography": "My passion is to build solutions that help empower others to reclaim their sovereignty, in a world that moves to eradicate it. Almost all my work revolves around Bitcoin. It's simply the greatest technology that I can work on to provide the most meaningful impact. As the world around us tightens its grip on our freedoms, Bitcoin provides us a way to reclaim our financial freedom and fight back.", "public_name": "Kukks", "guid": "63a05101-6fe0-511f-8f3c-03bfc2d61637", "url": "https://program.freedomtechsummit.com/fts2026/speaker/VZ3RXK/"}], "links": [], "feedback_url": "https://program.freedomtechsummit.com/fts2026/talk/CM333B/feedback/", "origin_url": "https://program.freedomtechsummit.com/fts2026/talk/CM333B/", "attachments": []}, {"guid": "79881225-2e0a-5ef7-9a32-e7a6171acd0f", "code": "WWKQQL", "id": 94159, "logo": null, "date": "2026-06-10T17:00:00+02:00", "start": "17:00", "duration": "00:45", "room": "Prague West (\u2191 upstairs)", "slug": "fts2026-94159-panel-mining", "url": "https://program.freedomtechsummit.com/fts2026/talk/WWKQQL/", "title": "Panel: Mining", "subtitle": "", "track": "Bitcoin Track", "type": "Panel", "language": "en", "abstract": "- Bitcoin's economic security model, the role of blockspace as a free market, and strategies for preserving censorship resistance.\n- Mining pool architecture, key attack vectors, and innovative approaches to decentralized mining incentives.\n- Building FOSS Bitcoin applications with AI.\n- Distinctions between consensus rules and relay policies, debates around spam, and meaningful metrics for evaluating consensus changes.", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "EUX8XT", "name": "Chris Seedor", "avatar": "https://program.freedomtechsummit.com/media/avatars/9VN7HV_zJIZUPk.webp", "biography": "Chris began his career as a materials scientist and manufacturing consultant in Germany and China before discovering his greatest passion: Bitcoin. As co-founder and CEO of seedor.io & bitsurance.io, he is a central figure in the German Bitcoin scene, particularly in the areas of custody, inheritance, and insurance of Bitcoin.", "public_name": "Chris Seedor", "guid": "d5d375ae-90b7-5a9f-907c-d2a47e8df61c", "url": "https://program.freedomtechsummit.com/fts2026/speaker/EUX8XT/"}, {"code": "VCUT8T", "name": "aeon", "avatar": "https://program.freedomtechsummit.com/media/avatars/MWGXSY_XueZO0K.webp", "biography": "Aeon is the creator of the Ibis Wallet and Mempal, as well as the maintainer of censorshipresistant.com. He possesses a deep understanding of Bitcoin's core security model and the underlying economic incentives that make the network robust and sustainable.\n\nHe has delivered talks at several Bitcoin conferences, including Bitcoin 2025, B4E, and Bitcoin Jungle.", "public_name": "aeon", "guid": "673760ff-8d00-5b92-9dba-03f301cb4f2d", "url": "https://program.freedomtechsummit.com/fts2026/speaker/VCUT8T/"}, {"code": "VNF8AC", "name": "Erik Hersman", "avatar": "https://program.freedomtechsummit.com/media/avatars/EBX7VS_Nj0ToVa.webp", "biography": "Erik Hersman is co-founder of Gridless, pioneering decentralized energy through bitcoin mining to electrify off-grid communities across Africa. With renewable-powered sites in Kenya, Malawi, and Zambia, Gridless monetizes excess energy to build a sustainable path to rural electrification for 600 million unconnected people. \n\nHe also founded Node, a Nairobi campus for AI, energy, and freedom tech, hosting a GPU cluster, solar generation, and a community building sovereign infrastructure. A two-decade builder, he co-founded Ushahidi, iHub, and BRCK.", "public_name": "Erik Hersman", "guid": "2b51a467-574f-5a6c-9c34-4681e5dc3fa7", "url": "https://program.freedomtechsummit.com/fts2026/speaker/VNF8AC/"}], "links": [], "feedback_url": "https://program.freedomtechsummit.com/fts2026/talk/WWKQQL/feedback/", "origin_url": "https://program.freedomtechsummit.com/fts2026/talk/WWKQQL/", "attachments": []}], "Berlin (\u2191 upstairs)": [{"guid": "f664a4d6-994a-5e7e-9524-cc6528d86c95", "code": "BVMBPS", "id": 90789, "logo": null, "date": "2026-06-10T10:00:00+02:00", "start": "10:00", "duration": "00:30", "room": "Berlin (\u2191 upstairs)", "slug": "fts2026-90789-bindex-building-a-better-bitcoin-indexer-in-rust", "url": "https://program.freedomtechsummit.com/fts2026/talk/BVMBPS/", "title": "Bindex | Building a better Bitcoin indexer in Rust", "subtitle": "", "track": "Bitcoin Track", "type": "Keynote", "language": "en", "abstract": "Following the development of electrs, I will present Bindex - a performant Bitcoin indexing library written in Rust (https://github.com/romanz/bindex).\nIt uses on a new indexing schema and relies on new Bitcoin Core REST API endpoints for efficient data storage and retrieval.\u00a0In addition, it supports SQLite-based caching for faster history synchronization.", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "LDCYCG", "name": "Roman Zeyde", "avatar": "https://program.freedomtechsummit.com/media/avatars/LDCYCG_tujwkCg.webp", "biography": "Firmware developer @ Trezor.", "public_name": "Roman Zeyde", "guid": "2f00081c-ccde-5f5d-8992-9b102991ec8a", "url": "https://program.freedomtechsummit.com/fts2026/speaker/LDCYCG/"}], "links": [{"title": "Slides", "url": "https://docs.google.com/presentation/d/1Zez-6DApKRu59kke4i_g9jwxQlaFKKRpOPdYFYsFXfA/", "type": "related"}], "feedback_url": "https://program.freedomtechsummit.com/fts2026/talk/BVMBPS/feedback/", "origin_url": "https://program.freedomtechsummit.com/fts2026/talk/BVMBPS/", "attachments": []}, {"guid": "f95a8be1-c6fa-5907-85e8-6af96a145807", "code": "ANQELC", "id": 93129, "logo": null, "date": "2026-06-10T10:40:00+02:00", "start": "10:40", "duration": "00:30", "room": "Berlin (\u2191 upstairs)", "slug": "fts2026-93129-bitcoin-escrow-mechanisms", "url": "https://program.freedomtechsummit.com/fts2026/talk/ANQELC/", "title": "Bitcoin Escrow Mechanisms", "subtitle": "", "track": "Bitcoin Track", "type": "Keynote", "language": "en", "abstract": "Bitcoin was designed to remove trusted third parties \u2014 yet many real-world transactions still need a safety net. That's why we have Escrows.This talk walks through every major escrow mechanism available on Bitcoin today. It's use cases and implementation details.", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "RFBMDP", "name": "karliatto", "avatar": "https://program.freedomtechsummit.com/media/avatars/K7WK3M_jVbAvKv.webp", "biography": "Bleskomat co-founder - Developer at Trezor Connect", "public_name": "karliatto", "guid": "a30ffa6c-0aba-5978-a7cb-1ea06de158c3", "url": "https://program.freedomtechsummit.com/fts2026/speaker/RFBMDP/"}], "links": [], "feedback_url": "https://program.freedomtechsummit.com/fts2026/talk/ANQELC/feedback/", "origin_url": "https://program.freedomtechsummit.com/fts2026/talk/ANQELC/", "attachments": []}, {"guid": "4f993bcc-6a3c-510f-9d27-79efb6c7cab7", "code": "Q8UUNK", "id": 95117, "logo": null, "date": "2026-06-10T11:20:00+02:00", "start": "11:20", "duration": "00:30", "room": "Berlin (\u2191 upstairs)", "slug": "fts2026-95117-creative-ways-of-embedding-contiguous-data-into-bitcoin-time-chain", "url": "https://program.freedomtechsummit.com/fts2026/talk/Q8UUNK/", "title": "Creative ways of embedding contiguous data into Bitcoin time chain", "subtitle": "", "track": "Bitcoin Track", "type": "Keynote", "language": "en", "abstract": "The proponents of BIP-110 made many bold claims about limiting the sizes of individual fields being effective at preventing putting contiguous data into the Bitcoin time chain which prompted me to put a 66kB contiguous image file into the time chain as **the entire transaction** to prove them wrong. In this talk, I will explain how I did this, some other ways of putting contiguous data into the chain, and debunk their strongest counterargument to my claim.", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "TQCZNH", "name": "Martin", "avatar": "https://program.freedomtechsummit.com/media/avatars/GDMLPL_t8X6hdN.webp", "biography": "Programmer, Bitcoiner, voluntaryist, co-maintainer of rust-bitcoin, co-founder of Paralelna Polis Bratislava", "public_name": "Martin", "guid": "4bb35236-990f-591d-b9e6-1382979ea404", "url": "https://program.freedomtechsummit.com/fts2026/speaker/TQCZNH/"}], "links": [], "feedback_url": "https://program.freedomtechsummit.com/fts2026/talk/Q8UUNK/feedback/", "origin_url": "https://program.freedomtechsummit.com/fts2026/talk/Q8UUNK/", "attachments": []}, {"guid": "437699dd-22cb-5f9a-80b5-1d6949f52e4c", "code": "P9EZFR", "id": 92432, "logo": null, "date": "2026-06-10T12:00:00+02:00", "start": "12:00", "duration": "00:30", "room": "Berlin (\u2191 upstairs)", "slug": "fts2026-92432-connecting-bitcoin-l2s-the-kaleidoswap-protocol-and-sdk-deep-dive", "url": "https://program.freedomtechsummit.com/fts2026/talk/P9EZFR/", "title": "Connecting Bitcoin L2s: The KaleidoSwap Protocol and SDK Deep Dive", "subtitle": "", "track": "Bitcoin Track", "type": "Keynote", "language": "en", "abstract": "Bitcoin's L2 ecosystem is evolving fast, stablecoins and tokenized assets are coming to Lightning and beyond. The Kaleido SDK is the developer toolkit to swap them. In this keynote we'll walk through the architecture of the KaleidoSwap Protocol, API, and SDK, and show real code examples of how to connect to an RGB Lightning Node, get BTC and RGB asset liquidity from an LSP, and execute trustless atomic swaps across Bitcoin L2s.", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "KA9FWX", "name": "bitwalt", "avatar": "https://program.freedomtechsummit.com/media/avatars/JT7YSF_AH9Bdc9.webp", "biography": "I\u2019m a Bitcoin builder focused on infrastructure, liquidity, and the next generation of financial markets on Bitcoin. My work sits at the intersection of protocol design, developer tooling, and real-world adoption, with a focus on making trust-less systems practical and scalable. I\u2019m currently building KaleidoSwap, a protocol for atomic, cross-layer trading across Bitcoin L2s. I care about open systems, strong incentives, and creating products that bring new users and capital into the Bitcoin ecosystem.", "public_name": "bitwalt", "guid": "6f1c6368-4adf-541f-83f0-61d11b4cfe36", "url": "https://program.freedomtechsummit.com/fts2026/speaker/KA9FWX/"}, {"code": "A3FR3K", "name": "Arsh", "avatar": null, "biography": null, "public_name": "Arsh", "guid": "644f42d6-ef95-5380-937a-1ad609ba8d0f", "url": "https://program.freedomtechsummit.com/fts2026/speaker/A3FR3K/"}], "links": [], "feedback_url": "https://program.freedomtechsummit.com/fts2026/talk/P9EZFR/feedback/", "origin_url": "https://program.freedomtechsummit.com/fts2026/talk/P9EZFR/", "attachments": []}, {"guid": "466187a3-7745-5c02-8587-e404b5b0f73c", "code": "P8FD3V", "id": 97003, "logo": null, "date": "2026-06-10T12:40:00+02:00", "start": "12:40", "duration": "00:30", "room": "Berlin (\u2191 upstairs)", "slug": "fts2026-97003-linky-cashu-wallet-for-seamless-bitcoin-adoption", "url": "https://program.freedomtechsummit.com/fts2026/talk/P8FD3V/", "title": "Linky - Cashu wallet for seamless bitcoin adoption", "subtitle": "", "track": "Bitcoin Track", "type": "Keynote", "language": "en", "abstract": "Linky is a cashu wallet that lets people send bitcoin through any messenger, store it on an NFC tag for private in-person transfer, or deliver it via gift-wrapped nostr messages. The recipient does not even need an app at first, yet can still receive and use bitcoin right away. In this workshop, you will be able to try it yourself, explore real use cases, and learn more about how it works.", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "ZTUDKW", "name": "Hynek", "avatar": "https://program.freedomtechsummit.com/media/avatars/7UEVAF_67qV2UW.webp", "biography": "Hynek is an economist, libertarian, free education advocate, former music teacher and organizer of voluntary family retreats. He is interested in bitcoin adoption, scaling, lightning network, privacy, pay via coinjoin, and other related topics.", "public_name": "Hynek", "guid": "7f18cf33-e22e-5771-b412-61f622c55c5b", "url": "https://program.freedomtechsummit.com/fts2026/speaker/ZTUDKW/"}], "links": [], "feedback_url": "https://program.freedomtechsummit.com/fts2026/talk/P8FD3V/feedback/", "origin_url": "https://program.freedomtechsummit.com/fts2026/talk/P8FD3V/", "attachments": []}, {"guid": "512aab01-05f2-57d2-8af7-18b7ae836807", "code": "YCHWYM", "id": 94012, "logo": null, "date": "2026-06-10T13:20:00+02:00", "start": "13:20", "duration": "00:30", "room": "Berlin (\u2191 upstairs)", "slug": "fts2026-94012-mpc-secured-rgb-lightning-nodes", "url": "https://program.freedomtechsummit.com/fts2026/talk/YCHWYM/", "title": "MPC-secured RGB Lightning Nodes", "subtitle": "", "track": "Bitcoin Track", "type": "Keynote", "language": "en", "abstract": "This presentation introduces a security architecture for Lightning nodes that combines Multi-Party Computation (MPC) wallets with validating signing (based on VLS) to eliminate the fundamental weaknesses of traditional Lightning deployments.\n\nLightning nodes are inherently hot wallets - they must keep funds online inside channels, often at significant scale. This creates a critical attack surface: if a node is compromised, an attacker can either steal private keys or trick the node into signing malicious channel states and draining funds.", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "KWVCNX", "name": "Renat Skitsan", "avatar": "https://program.freedomtechsummit.com/media/avatars/9JUBZV_Pqac8sb.webp", "biography": "Co-Founder & CTO at Utexo", "public_name": "Renat Skitsan", "guid": "d5befbcc-8194-56b9-b92b-bc43abdfe844", "url": "https://program.freedomtechsummit.com/fts2026/speaker/KWVCNX/"}, {"code": "NER3ZN", "name": "Birkan Kayadibi", "avatar": null, "biography": ".", "public_name": "Birkan Kayadibi", "guid": "c592d4b6-783b-51a6-8872-7a3ad2afe258", "url": "https://program.freedomtechsummit.com/fts2026/speaker/NER3ZN/"}], "links": [], "feedback_url": "https://program.freedomtechsummit.com/fts2026/talk/YCHWYM/feedback/", "origin_url": "https://program.freedomtechsummit.com/fts2026/talk/YCHWYM/", "attachments": []}, {"guid": "f62c690b-4652-5345-81a6-364796bb47fb", "code": "HGUSYE", "id": 92584, "logo": null, "date": "2026-06-10T14:00:00+02:00", "start": "14:00", "duration": "00:30", "room": "Berlin (\u2191 upstairs)", "slug": "fts2026-92584-uniting-the-tribes-crypto-anarchy-unleashed", "url": "https://program.freedomtechsummit.com/fts2026/talk/HGUSYE/", "title": "Uniting the tribes - Crypto-anarchy unleashed", "subtitle": "", "track": "Nostr Track", "type": "Keynote", "language": "en", "abstract": "Crypto-anarchy uses cryptography, decentralized money, and monetized decentralized apps to empower peer\u2011to\u2011peer economies and private coordination outside state control.\nKey tools \u2014 mesh networks, distributed storage, secure distributed computing, privacy coins, and Nostr as a web\u2011of\u2011trust \u2014 enable resilient, private collaboration.\nWe can use these tools to join homesteaders, regenerative farmers, intentional communities, freedom cells, and allied groups to coordinate, trade, share knowledge, and mutual\u2011aid with privacy, resiliency, and dignity.", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "PPD7ET", "name": "Shadrach", "avatar": "https://program.freedomtechsummit.com/media/avatars/XWHFMP_bL76Nqu.webp", "biography": "Shadrach is working with Archipelago Foundation Trust to guide and nurture individual freedom tech projects that align with our core values when creating home servers and freedom tech software.  The goal is to use anonymous funding to empower innovators and communities to develop and implement technologies that promote personal freedom, protect privacy, and resist censorship.", "public_name": "Shadrach", "guid": "881e6b20-a1f1-5f72-b8bc-bd1bd80ae5d6", "url": "https://program.freedomtechsummit.com/fts2026/speaker/PPD7ET/"}], "links": [{"title": "Website is up!", "url": "https://www.archipelago-foundation.org/", "type": "related"}], "feedback_url": "https://program.freedomtechsummit.com/fts2026/talk/HGUSYE/feedback/", "origin_url": "https://program.freedomtechsummit.com/fts2026/talk/HGUSYE/", "attachments": []}, {"guid": "132e6663-8777-540f-8abe-b355122de7fd", "code": "UCEY3K", "id": 95567, "logo": null, "date": "2026-06-10T14:40:00+02:00", "start": "14:40", "duration": "00:30", "room": "Berlin (\u2191 upstairs)", "slug": "fts2026-95567-wallet-linked-offers-the-missing-incentive-layer-for-bitcoin-payments", "url": "https://program.freedomtechsummit.com/fts2026/talk/UCEY3K/", "title": "Wallet-Linked Offers: The Missing Incentive Layer for Bitcoin Payments", "subtitle": "", "track": "Bitcoin Track", "type": "Keynote", "language": "en", "abstract": "As Bitcoiners, we can imagine a truly free\n  market where prices fall and anyone can save\n  without speculating. That's only possible if\n  Bitcoin becomes money people use. Payment\n  infrastructure is here. Payment volume isn't.\n  The missing piece is incentives, the same lever\n  card networks used to drive mass payment\n  adoption. We built the Bitcoin-native\n  equivalent: merchant-funded wallet-linked offers\n   on Lightning and NWC, instant and programmable,\n   without banks or surveillance, available to any\n   merchant anywhere in the world. Live demo", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "PDMTJH", "name": "Tomas Chojnacki", "avatar": "https://program.freedomtechsummit.com/media/avatars/VAPJMK_zOG2Hls.webp", "biography": "Sound money nerd since discovering mises.org 20\n  years ago. Former goldbug, Bitcoin-only since\n  2018. Launched Satsback.com in 2020 - helped\n  thousands of Bitcoiners stack over $1M in free\n  sats while shopping online. Lightning-only\n  payouts from day one. More interested in\n  Bitcoin as freedom money than treasury reserve\n  companies. Now building wallet-linked offers:\n  merchant-funded instant satsback at any BTCPay\n  merchant, on open protocols, without banks or\n  surveillance. The incentive layer Bitcoin\n  payments are missing.", "public_name": "Tomas Chojnacki", "guid": "6f894970-1c0f-55a1-844b-e83e24219864", "url": "https://program.freedomtechsummit.com/fts2026/speaker/PDMTJH/"}], "links": [], "feedback_url": "https://program.freedomtechsummit.com/fts2026/talk/UCEY3K/feedback/", "origin_url": "https://program.freedomtechsummit.com/fts2026/talk/UCEY3K/", "attachments": []}, {"guid": "c86cf4ef-ace0-52f8-a59f-8654747139fa", "code": "FZ7GKG", "id": 93837, "logo": null, "date": "2026-06-10T15:20:00+02:00", "start": "15:20", "duration": "00:30", "room": "Berlin (\u2191 upstairs)", "slug": "fts2026-93837-zappool-org-the-first-nostr-friendly-home-miner-proxy-pool", "url": "https://program.freedomtechsummit.com/fts2026/talk/FZ7GKG/", "title": "Zappool.org: the first Nostr-friendly home miner proxy pool", "subtitle": "", "track": "Bitcoin Track", "type": "Keynote", "language": "en", "abstract": "Since Bitaxe there are many decentralized home miners, and almost all are used in solo mode. Why? Pooled usage is cumbersome, plus there\u2019s not much use of the few sats they would make. How about for daily zaps on Nostr? With Zappool you can do that: just plug your npub into a Bitaxe, and get daily zaps from it! Permissionless and easy.\nZappool -- likely the first working proxy pool -- solved the bootstrapping issue by being based on top of another pool. It creates a simple user experience by combining the bitcoin mining, lightning and Nostr stack.", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "PWW7DB", "name": "OptOut", "avatar": "https://program.freedomtechsummit.com/media/avatars/ZY3DZF_5uW8khH.webp", "biography": "Freedom tech dev and bitcoin maxi -- bitcoin, lightning, nostr, cashu. You can opt out!", "public_name": "OptOut", "guid": "59852496-6ef9-5465-b2a4-c8dd4bcfb781", "url": "https://program.freedomtechsummit.com/fts2026/speaker/PWW7DB/"}], "links": [{"title": "Zappool", "url": "https://zappool.org/", "type": "related"}], "feedback_url": "https://program.freedomtechsummit.com/fts2026/talk/FZ7GKG/feedback/", "origin_url": "https://program.freedomtechsummit.com/fts2026/talk/FZ7GKG/", "attachments": []}, {"guid": "678ffffb-6ca3-5535-a793-4440104e770f", "code": "ZJVKNZ", "id": 100295, "logo": null, "date": "2026-06-10T16:00:00+02:00", "start": "16:00", "duration": "00:15", "room": "Berlin (\u2191 upstairs)", "slug": "fts2026-100295-collective-use-cases-of-bitcoin-without-an-internet-connected-devices", "url": "https://program.freedomtechsummit.com/fts2026/talk/ZJVKNZ/", "title": "Collective Use Cases of Bitcoin without an Internet Connected Devices", "subtitle": "", "track": "Resilience Track", "type": "Talk", "language": "en", "abstract": "A case study style talking covering features we have implemented to allow people to use Bitcoin in group settings, whether it's for savings, tip splits, or businesses.\n\nSlides: https://d.nostr.build/o1aXJOuJ8mGNkFfF.pdf", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "PE7YVL", "name": "Kgothatso Ngako", "avatar": "https://program.freedomtechsummit.com/media/avatars/FEYRQV_xndETBV.webp", "biography": "Kgothatso Ngako, is a catalyst aiming to accelerate the adoption of Bitcoin across the African continent. He has founded both exonumia.africa, project translating Bitcoin literature into African languages, and machankura.com, service that allows people to send and receive Bitcoin even without an internet connected device, through USSD and other text based interfaces.\n\nhttps://x.com/440UrPp\nhttps://x.com/Machankura8333", "public_name": "Kgothatso Ngako", "guid": "1a9a3427-0c37-5e60-8dbf-645424295b10", "url": "https://program.freedomtechsummit.com/fts2026/speaker/PE7YVL/"}], "links": [], "feedback_url": "https://program.freedomtechsummit.com/fts2026/talk/ZJVKNZ/feedback/", "origin_url": "https://program.freedomtechsummit.com/fts2026/talk/ZJVKNZ/", "attachments": []}, {"guid": "65d735b0-c34e-5098-8d43-f899b7472199", "code": "A3HEY9", "id": 93719, "logo": null, "date": "2026-06-10T16:20:00+02:00", "start": "16:20", "duration": "00:30", "room": "Berlin (\u2191 upstairs)", "slug": "fts2026-93719-nostrmail-learning-from-three-decades-of-pgp", "url": "https://program.freedomtechsummit.com/fts2026/talk/A3HEY9/", "title": "NostrMail - Learning from three decades of PGP", "subtitle": "", "track": "Nostr Track", "type": "Keynote", "language": "en", "abstract": "NostrMail is a cross-platform, end-to-end encrypted email client that bridges Nostr and traditional email protocols.  NostrMail avoids the pitfalls of PGP by using Nostr for key discovery. It works with existing email providers like Gmail and uses wordlist encoding (e.g., BIP39) so signatures and ciphertext remain valid under forwarding and quoting. NostrMail is open source, cross-platform, and available now on the Zapstore.", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "EWDFP3", "name": "Asher Pembroke", "avatar": "https://program.freedomtechsummit.com/media/avatars/SPR9JG_d7apLP6.webp", "biography": "I'm an advocate for Bitcoin privacy, education, and outreach. Previous talks have ranged from intro to elliptic curves, to hashrate accounting for on-chain privacy, and time tracking for lightning invoices. For several years I led the NextGen village at TABConf, creating fun, hands-on family-friendly learning spaces. I'm trained as a plasma physicist (PhD), and I spent six years at NASA building data standards for space weather models and orbit predictions.", "public_name": "Asher Pembroke", "guid": "6367e678-4ee4-53ce-bf10-8286fdcd08a7", "url": "https://program.freedomtechsummit.com/fts2026/speaker/EWDFP3/"}], "links": [{"title": "NostrMail github repo", "url": "https://github.com/asherp/nostr-mail", "type": "related"}, {"title": "Glossia - a lossless linguistic codec for email-friendly cyphertext", "url": "https://glossia.io/", "type": "related"}, {"title": "NostrMail app on zapstore", "url": "https://zapstore.dev/apps/com.nostr.mail", "type": "related"}], "feedback_url": "https://program.freedomtechsummit.com/fts2026/talk/A3HEY9/feedback/", "origin_url": "https://program.freedomtechsummit.com/fts2026/talk/A3HEY9/", "attachments": []}, {"guid": "c4cf4f6d-380b-5ac2-b4fb-d8c9b804f3f5", "code": "8QGEMD", "id": 98402, "logo": null, "date": "2026-06-10T17:00:00+02:00", "start": "17:00", "duration": "00:45", "room": "Berlin (\u2191 upstairs)", "slug": "fts2026-98402-let-s-make-a-frost-key-for-comfy-self-custody", "url": "https://program.freedomtechsummit.com/fts2026/talk/8QGEMD/", "title": "Let's Make a FROST Key for Comfy Self-Custody", "subtitle": "", "track": "Bitcoin Track", "type": "Workshop (1 hour)", "language": "en", "abstract": "An interactive exploration of the beautiful mathematics behind Distributed Key Generation.\n\nTogether, we'll start on paper: contributing inputs as a group, and using them to create a shared secret that no single person knows. Nothing beyond high school mathematics required!\n\nThen we'll use a browser-based FROST tool to coordinate key generation over a Nostr bulletin board, and walk away with a working secret share.\n\nQ&A throughout, and a bonus challenge: sign a Nostr event under the group key.", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "H8UUTU", "name": "Nick Farrow", "avatar": "https://program.freedomtechsummit.com/media/avatars/G3BHST_44MutMD.webp", "biography": "Nick works on peer-to-peer cash security at [Frostsnap](https://frostsnap.com). He maintains [utxo.club](https://utxo.club).", "public_name": "Nick Farrow", "guid": "97891fc7-5d0c-54f6-b713-b7a093d2bfb7", "url": "https://program.freedomtechsummit.com/fts2026/speaker/H8UUTU/"}], "links": [], "feedback_url": "https://program.freedomtechsummit.com/fts2026/talk/8QGEMD/feedback/", "origin_url": "https://program.freedomtechsummit.com/fts2026/talk/8QGEMD/", "attachments": []}], "Stockholm (\u2191 upstairs)": [{"guid": "8af189f1-3001-5faa-977c-28690266012d", "code": "WVJFVT", "id": 93081, "logo": null, "date": "2026-06-10T10:30:00+02:00", "start": "10:30", "duration": "00:10", "room": "Stockholm (\u2191 upstairs)", "slug": "fts2026-93081-bitcoin-flow", "url": "https://program.freedomtechsummit.com/fts2026/talk/WVJFVT/", "title": "Bitcoin Flow", "subtitle": "", "track": "Bitcoin Track", "type": "Lightning Talk", "language": "en", "abstract": "Governments have \"Chainalysis\" tools to follow Bitcoin transactions. Let's build an open-source tool for everybody to have a \"Chainalysis\" tool!\nBitcoin Flow is a visual graph-based UI for Bitcoin Transactions - where each node represents a transaction with input/output edges connected to other transactions. You can enter a specific txids, addresses and xpubs to see their transactions, label them, etc.\nI'll be happy to get help integrating this project on personal nodes, and extending the tool to be able to build/display chains of PSBTs.", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "YZEMFV", "name": "Oren Z", "avatar": "https://program.freedomtechsummit.com/media/avatars/NV7CCL_TazcGOv.webp", "biography": "Founder of [RITREK.com](https://ritrek.com)\n\nSide Projects: https://niot.space , https://ln2.email", "public_name": "Oren Z", "guid": "b925b3cf-de40-538a-a04c-ef745c6f659d", "url": "https://program.freedomtechsummit.com/fts2026/speaker/YZEMFV/"}], "links": [{"title": "Bitcoin-Flow website", "url": "https://bitcoinflow.niot.space", "type": "related"}], "feedback_url": "https://program.freedomtechsummit.com/fts2026/talk/WVJFVT/feedback/", "origin_url": "https://program.freedomtechsummit.com/fts2026/talk/WVJFVT/", "attachments": []}, {"guid": "1db040ef-9fa8-5ad3-b8d9-a748aadeb63b", "code": "NSMUUQ", "id": 93083, "logo": null, "date": "2026-06-10T10:40:00+02:00", "start": "10:40", "duration": "00:10", "room": "Stockholm (\u2191 upstairs)", "slug": "fts2026-93083-ln2-email", "url": "https://program.freedomtechsummit.com/fts2026/talk/NSMUUQ/", "title": "ln2.email", "subtitle": "", "track": "Bitcoin Track", "type": "Lightning Talk", "language": "en", "abstract": "Your email remains the same, but your lightning address might not.\nThis creates a frustration when you need to switch to a new lightning wallet - you have to tell everyone to use your new lightning address instead of your old lightning address.\nIf only Email providers could turn your email address to a lightning address...\n[ln2.email](https://ln2.email) turns your email address <username>@<provider>.com to asimilarly-looking lightning address <username>@<provider>.com.ln2.email, with a redirection that you control.", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "YZEMFV", "name": "Oren Z", "avatar": "https://program.freedomtechsummit.com/media/avatars/NV7CCL_TazcGOv.webp", "biography": "Founder of [RITREK.com](https://ritrek.com)\n\nSide Projects: https://niot.space , https://ln2.email", "public_name": "Oren Z", "guid": "b925b3cf-de40-538a-a04c-ef745c6f659d", "url": "https://program.freedomtechsummit.com/fts2026/speaker/YZEMFV/"}], "links": [], "feedback_url": "https://program.freedomtechsummit.com/fts2026/talk/NSMUUQ/feedback/", "origin_url": "https://program.freedomtechsummit.com/fts2026/talk/NSMUUQ/", "attachments": []}, {"guid": "5147d91f-72eb-5315-9f09-14a011fa830f", "code": "V3WG7F", "id": 93080, "logo": null, "date": "2026-06-10T10:50:00+02:00", "start": "10:50", "duration": "00:10", "room": "Stockholm (\u2191 upstairs)", "slug": "fts2026-93080-ritrek-timelock-recovery", "url": "https://program.freedomtechsummit.com/fts2026/talk/V3WG7F/", "title": "RITREK & Timelock Recovery", "subtitle": "", "track": "Bitcoin Track", "type": "Lightning Talk", "language": "en", "abstract": "Many less-technical Bitcoiners need a recovery mechanism that doesn't require them to switch to a multisig/miniscript wallet. Timelock Recovery is a solution based on 2 pre-signed transactions - one that keep the Bitcoin on the same wallet, and another that moves it to a second wallet after a relative-locktime (nSequence). Pre-signed transactions are safer to save online, but obviously have some disadvantages.\nWe will talk about how to create, backup, monitor and execute Timelock Recovery plans via the RITREK Android app.", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "YZEMFV", "name": "Oren Z", "avatar": "https://program.freedomtechsummit.com/media/avatars/NV7CCL_TazcGOv.webp", "biography": "Founder of [RITREK.com](https://ritrek.com)\n\nSide Projects: https://niot.space , https://ln2.email", "public_name": "Oren Z", "guid": "b925b3cf-de40-538a-a04c-ef745c6f659d", "url": "https://program.freedomtechsummit.com/fts2026/speaker/YZEMFV/"}], "links": [{"title": "RITREK Android App", "url": "https://ritrek.com", "type": "related"}, {"title": "Technical website for Timelock-Recovery tools", "url": "https://timelockrecovery.com", "type": "related"}], "feedback_url": "https://program.freedomtechsummit.com/fts2026/talk/V3WG7F/feedback/", "origin_url": "https://program.freedomtechsummit.com/fts2026/talk/V3WG7F/", "attachments": []}, {"guid": "5752bc8c-074c-5fb8-a390-92bc61a8f1dc", "code": "XX3N9L", "id": 97403, "logo": null, "date": "2026-06-10T11:10:00+02:00", "start": "11:10", "duration": "00:30", "room": "Stockholm (\u2191 upstairs)", "slug": "fts2026-97403-building-on-nostr-with-ai-evolving-hivetalk-s-team-process-in-a-fast-moving-ecosystem", "url": "https://program.freedomtechsummit.com/fts2026/talk/XX3N9L/", "title": "Building on Nostr with AI: Evolving Hivetalk\u2019s Team Process in a Fast-Moving Ecosystem", "subtitle": "", "track": "Nostr Track", "type": "Keynote", "language": "en", "abstract": "We'll discuss how AI changes the way we ship on [Hivetalk](https://hivetalk.org). Nostr moves fast and we've had to move faster \u2014 tighter feedback loops, sharper product instincts, less overhead. We'll get into actual tools we use to ship quicker and write better code, and how to stay sane building for a chaotic protocol. We'll also be honest about the tension between running an open project and keeping momentum. Leave with real ideas for building lean AI-First teams, shipping better Nostr products, and not letting openness become an excuse for slow.", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "BCNRVE", "name": "bitkarrot", "avatar": "https://program.freedomtechsummit.com/media/avatars/DENZUN_DbFPxkU.webp", "biography": "I wear many hats. \nBuilding, Designing, Organizing, and Instigating on Nostr, Lightning, Bitcoin", "public_name": "bitkarrot", "guid": "1f33daad-e94d-51a0-8d25-40a0d12a0d89", "url": "https://program.freedomtechsummit.com/fts2026/speaker/BCNRVE/"}], "links": [], "feedback_url": "https://program.freedomtechsummit.com/fts2026/talk/XX3N9L/feedback/", "origin_url": "https://program.freedomtechsummit.com/fts2026/talk/XX3N9L/", "attachments": []}, {"guid": "67647fce-136d-531c-89e3-346e09d1039f", "code": "L3Z8YG", "id": 97186, "logo": null, "date": "2026-06-10T11:50:00+02:00", "start": "11:50", "duration": "00:30", "room": "Stockholm (\u2191 upstairs)", "slug": "fts2026-97186-private-group-alerts-over-nostr-nip-gart", "url": "https://program.freedomtechsummit.com/fts2026/talk/L3Z8YG/", "title": "Private group alerts over Nostr: NIP-GART", "subtitle": "", "track": "Nostr Track", "type": "Keynote", "language": "en", "abstract": "Centralized location-sharing services solve emergency alerting by asking users to trust a custodial provider with their real-time movements. Nostr offers a decentralized alternative, but the relay model leaks the metadata that matters in a duress scenario: who is alerting, who their trusted contacts are, and where they are.\n\nThis talk introduces NIP-GART (Group Alert & Response Transmission), an event kind for safety-critical alert and location broadcasts in which both content and metadata stay hidden from relay operators, as well as integration options.", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "JYPVDP", "name": "Francesco Pelle", "avatar": "https://program.freedomtechsummit.com/media/avatars/UELQTE_GtOS9QR.webp", "biography": "Francesco advocates for liberty through Bitcoin freedom technologies and business innovation. As former leader of **BitPolito** at the Polytechnic of Turin, he drove Bitcoin education and open-source development, connecting students to the industry. He serves on the advisory board for the university's Bitcoin Research Observatory, helping establish Turin as an international Bitcoin hotspot.\n\nDedicated to personal safety, he is now Project Manager at [**Gart**](https://gart.io), delivering safety tools and awareness to the global Bitcoin community.", "public_name": "Francesco Pelle", "guid": "bdd9e549-2962-5375-ad06-90999a22781b", "url": "https://program.freedomtechsummit.com/fts2026/speaker/JYPVDP/"}], "links": [], "feedback_url": "https://program.freedomtechsummit.com/fts2026/talk/L3Z8YG/feedback/", "origin_url": "https://program.freedomtechsummit.com/fts2026/talk/L3Z8YG/", "attachments": []}, {"guid": "6ae29e60-7f75-5d49-bf1c-890c156a747b", "code": "LXVCLZ", "id": 91146, "logo": null, "date": "2026-06-10T12:30:00+02:00", "start": "12:30", "duration": "01:30", "room": "Stockholm (\u2191 upstairs)", "slug": "fts2026-91146-specter-hardware-wallet-assembling-workshop", "url": "https://program.freedomtechsummit.com/fts2026/talk/LXVCLZ/", "title": "Specter Hardware Wallet Assembling Workshop", "subtitle": "", "track": "Bitcoin Track", "type": "Workshop (2 hours)", "language": "en", "abstract": "Every active participant will build their own Specter Shield Lite in a pleasant group atmosphere. This is the improved Specter DIY, with a secure chip smartcard option.\n\nIn this workshop I'm going to explain what the idea is of the first DIY Hardware Wallet, which is completely Opensource, Air-Gapped and Bitcoin only.\n\nBuy parts here:\n\ud83d\udc49https://clavastack.com/de/events/specter-shield-lite-workshop-freedom-tech-summit-prag", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "MXJEGF", "name": "Schnuartz", "avatar": "https://program.freedomtechsummit.com/media/avatars/MXJEGF_vTwaLF1.webp", "biography": "President Specter Association | German EINUNDZWANZIG Bitcoin Tutorial Guy | Making Specter Hardware Wallets easier available with ClavaStack\n\nLet's get yourself a Hardware Wallet the Cypherpunk way:\nVerify yourself\nFlash yourself.\nAssemble yourself", "public_name": "Schnuartz", "guid": "bef0b479-7aa1-570d-9fcf-924115724610", "url": "https://program.freedomtechsummit.com/fts2026/speaker/MXJEGF/"}], "links": [], "feedback_url": "https://program.freedomtechsummit.com/fts2026/talk/LXVCLZ/feedback/", "origin_url": "https://program.freedomtechsummit.com/fts2026/talk/LXVCLZ/", "attachments": []}, {"guid": "6939103b-87ed-56fc-8b12-1ae29cc4f9e8", "code": "DKDFWQ", "id": 97830, "logo": null, "date": "2026-06-10T14:10:00+02:00", "start": "14:10", "duration": "00:20", "room": "Stockholm (\u2191 upstairs)", "slug": "fts2026-97830-will-it-node-is-the-new-can-it-run-doom", "url": "https://program.freedomtechsummit.com/fts2026/talk/DKDFWQ/", "title": "Will It Node? Is the new 'Can it run DOOM'", "subtitle": "", "track": "Bitcoin Track", "type": "Talk", "language": "en", "abstract": "An exploration into running a Bitcoin node on older, not sexy hardware. From 10+ year old laptops to even older SBCs and Android phones (via Termux).\n\nInspired by the whitepaper quote, that a node doesn't need to be a heavy server and the current RAMpocalypse:\n\n> With computer systems typically selling with 2GB of RAM as of 2008, and Moore's Law predicting current growth of 1.2GB per year, storage should not be a problem even if the block headers must be kept in memory", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "7VMGVF", "name": "Simon Males", "avatar": "https://program.freedomtechsummit.com/media/avatars/QFUDLP_KpBiiUw.webp", "biography": "Started accepting Bitcoin for [faxes](https://bitcoinfax.net/) in 2015, now offering real-world [postcards](https://bitcoinpostcards.net/) for Bitcoin.", "public_name": "Simon Males", "guid": "2381da65-3e69-5d2d-a7b6-49f0d76739ab", "url": "https://program.freedomtechsummit.com/fts2026/speaker/7VMGVF/"}], "links": [], "feedback_url": "https://program.freedomtechsummit.com/fts2026/talk/DKDFWQ/feedback/", "origin_url": "https://program.freedomtechsummit.com/fts2026/talk/DKDFWQ/", "attachments": []}, {"guid": "9df6ea46-5a97-5d33-b63d-0daa513ceca9", "code": "EGHWKN", "id": 97719, "logo": null, "date": "2026-06-10T14:40:00+02:00", "start": "14:40", "duration": "01:00", "room": "Stockholm (\u2191 upstairs)", "slug": "fts2026-97719-self-sovereign-zaps-ark-nostr-wallet-connect", "url": "https://program.freedomtechsummit.com/fts2026/talk/EGHWKN/", "title": "Self-Sovereign Zaps: Ark + Nostr Wallet Connect", "subtitle": "", "track": "Nostr Track", "type": "Workshop (1 hour)", "language": "en", "abstract": "In this hands-on workshop, attendees will set up a self-sovereign Bark wallet and connect it to their Nostr client via Nostr Wallet Connect (NWC). By the end of the session, you'll be sending zaps directly from your own VTXOs and receiving inbound zaps to a wallet no custodian controls. Bring a laptop and a Nostr account; we'll handle the rest.", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "Z9KFEC", "name": "Matthew Vuk", "avatar": null, "biography": "Matthew Vuk is a protocol researcher and developer at Second, working on Bark - an open-source implementation of the Ark protocol. Matthew works with a focus on developer tooling, technical communications, and bringing self-custodial Bitcoin payments to a wide audience.", "public_name": "Matthew Vuk", "guid": "91480e68-6dc2-55ab-97c5-23975f5fd99d", "url": "https://program.freedomtechsummit.com/fts2026/speaker/Z9KFEC/"}], "links": [], "feedback_url": "https://program.freedomtechsummit.com/fts2026/talk/EGHWKN/feedback/", "origin_url": "https://program.freedomtechsummit.com/fts2026/talk/EGHWKN/", "attachments": []}, {"guid": "73f532b6-920b-5765-bdd7-88eaea7cd151", "code": "9ZUDE3", "id": 95934, "logo": null, "date": "2026-06-10T15:50:00+02:00", "start": "15:50", "duration": "01:00", "room": "Stockholm (\u2191 upstairs)", "slug": "fts2026-95934-building-sovereign-ai-with-routstr", "url": "https://program.freedomtechsummit.com/fts2026/talk/9ZUDE3/", "title": "\ufeffBuilding Sovereign AI with Routstr", "subtitle": "", "track": "Resilience Track", "type": "Workshop (1 hour)", "language": "en", "abstract": "1. What is Routstr?\n\n2. Setting Up a Routstr Node: Docker Setup\n\n3. Admin Interface: What Node Runners Can Do\n\n4. Using the Node as a Client\n*   Point any OpenAI-compatible SDK to your node URL\n*   Authenticate using a Cashu token as the API key\n\n5. Using routstrd Client: Automated Routing\n*   Discovers best providers via Nostr NIP-91\n*   Automates routing based on price and availability\n6. What we learned!\n*   How to host your own sovereign AI gateway\n*   Basics of private, pay-per-request AI billing", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "KXPSA8", "name": "abdou", "avatar": null, "biography": "I am dedicated to building a future where intelligence is a permissionless and private utility. By leveraging the decentralized power of Nostr and the privacy of Cashu, My work focuses on removing the gatekeepers of innovation, ensuring that AI remains accessible, censorship-resistant, and entirely accountless. I believe that in the age of automation, financial and computational sovereignty are the ultimate tools for human freedom.", "public_name": "abdou", "guid": "5e5abcf7-da6e-5dea-b721-760b386494a6", "url": "https://program.freedomtechsummit.com/fts2026/speaker/KXPSA8/"}], "links": [], "feedback_url": "https://program.freedomtechsummit.com/fts2026/talk/9ZUDE3/feedback/", "origin_url": "https://program.freedomtechsummit.com/fts2026/talk/9ZUDE3/", "attachments": []}], "London (\u2193 downstairs)": [{"guid": "b6d3757f-c3a8-57ef-954b-fded91f2e870", "code": "8VC3TS", "id": 93917, "logo": null, "date": "2026-06-10T12:30:00+02:00", "start": "12:30", "duration": "01:00", "room": "London (\u2193 downstairs)", "slug": "fts2026-93917-bitcoin-core-ipc", "url": "https://program.freedomtechsummit.com/fts2026/talk/8VC3TS/", "title": "Bitcoin Core IPC", "subtitle": "", "track": "Bitcoin Track", "type": "Workshop (1 hour)", "language": "en", "abstract": "Since Bitcoin Core v30 you can use [Cap'n Proto ](https://capnproto.org) to connect to the node, which is much more powerful than RPC. It's currently only used for Stratum v2 but has the potential to do much more.\n\nWe'll use [rust-bitcoin](https://github.com/rust-bitcoin/rust-bitcoin) and [bitcoin-capnp-types](https://github.com/2140-dev/bitcoin-capnp-types/) to try out the capabilities.\n\nAdditionally I'd like to discuss what new IPC methods would be useful, perhaps going beyond mining.", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "FYAJGG", "name": "Sjors Provoost", "avatar": "https://program.freedomtechsummit.com/media/avatars/VG8TXF_MqdXFdz.webp", "biography": "Sjors Provoost is a Dutch software developer and the author of \u201cBitcoin: A Work In Progress\u201d. He has been working in the Bitcoin industry since 2014 and became a Bitcoin Core contributor in 2017. He is a co-host on the podcast \u201cBitcoin, Explained\u201d, in which he, together with Aaron van Wirdum, explains the latest technical developments on Bitcoin.", "public_name": "Sjors Provoost", "guid": "eccc0493-0958-5649-bf2b-b518bbcd86f8", "url": "https://program.freedomtechsummit.com/fts2026/speaker/FYAJGG/"}], "links": [], "feedback_url": "https://program.freedomtechsummit.com/fts2026/talk/8VC3TS/feedback/", "origin_url": "https://program.freedomtechsummit.com/fts2026/talk/8VC3TS/", "attachments": []}, {"guid": "b735a49a-e9f0-5e03-a977-82cc47644984", "code": "8MXNDJ", "id": 92292, "logo": null, "date": "2026-06-10T13:40:00+02:00", "start": "13:40", "duration": "01:30", "room": "London (\u2193 downstairs)", "slug": "fts2026-92292-coinswap-make-bitcoin-fungible-again", "url": "https://program.freedomtechsummit.com/fts2026/talk/8MXNDJ/", "title": "Coinswap: Make Bitcoin Fungible Again", "subtitle": "", "track": "Bitcoin Track", "type": "Workshop (2 hours)", "language": "en", "abstract": "Coinswap is a decentralized atomic swap protocol enhancing Bitcoin fungibility by swapping UTXOs without traces. Originally by Greg Maxwell (2013), developed by Chris Belcher (2019), revived by Citadel FOSS (2023), enabling privacy-preserving transactions over decentralized marketplaces.\n\n**Workshop:** 45-minute theory + 75-minute live demo with multihop swaps.\n\n**Requirements:** Bitcoin Mutinynet node (sync ~1 hour), Tor, compiled components (makerd, maker-cli, Taker) or Docker setup.\n\n**Details:** https://hackmd.io/@ZR2r5ihhS8-ASbqDvOGtwg/BkljgyqdZx", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "RHXWDG", "name": "Mojo Jojo", "avatar": "https://program.freedomtechsummit.com/media/avatars/FX9ARC_82qR8Wy.webp", "biography": "Previously Rusty Bitcoin dev turned Project Manager at Coinswap.", "public_name": "Mojo Jojo", "guid": "dd627f20-a83e-52d8-80ac-25069319cbaf", "url": "https://program.freedomtechsummit.com/fts2026/speaker/RHXWDG/"}, {"code": "MR8DPU", "name": "Stark", "avatar": null, "biography": null, "public_name": "Stark", "guid": "4babd523-24af-54bb-a3c8-3d55dc7a6e11", "url": "https://program.freedomtechsummit.com/fts2026/speaker/MR8DPU/"}], "links": [], "feedback_url": "https://program.freedomtechsummit.com/fts2026/talk/8MXNDJ/feedback/", "origin_url": "https://program.freedomtechsummit.com/fts2026/talk/8MXNDJ/", "attachments": []}, {"guid": "1b66ddad-4c91-5a0d-bb8c-1c0ef6c840f2", "code": "MUBXWQ", "id": 96930, "logo": null, "date": "2026-06-10T15:20:00+02:00", "start": "15:20", "duration": "01:00", "room": "London (\u2193 downstairs)", "slug": "fts2026-96930-go-fips-join-the-mesh", "url": "https://program.freedomtechsummit.com/fts2026/talk/MUBXWQ/", "title": "Go FIPS! - Join the Mesh.", "subtitle": "", "track": "Resilience Track", "type": "Workshop (1 hour)", "language": "en", "abstract": "In this workshop we go hands-on. We will get you connected to the FIPS mesh! \n\nBy the end of this workshop you will be able to communicate with other people in the local mesh, in a way that would keep working even if the internet goes down!\n\nIf you're up for it you can even expose your own server over FIPS with almost zero effort. If you have a spare OpenWRT router, bring it!\n\nWhat to bring:\n- Your laptop\n- OpenWRT (24+) router (optional)", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "739SHZ", "name": "Arjen", "avatar": "https://program.freedomtechsummit.com/media/avatars/JJ8U7X_p8lBjJT.webp", "biography": "Arjen works on Nostr-based tech that removes middlemen.\n\n- TollGate\n- FIPS\n- NoDNS\n- Loom", "public_name": "Arjen", "guid": "7064074a-9d89-5c05-96da-d2b76b8ab919", "url": "https://program.freedomtechsummit.com/fts2026/speaker/739SHZ/"}], "links": [], "feedback_url": "https://program.freedomtechsummit.com/fts2026/talk/MUBXWQ/feedback/", "origin_url": "https://program.freedomtechsummit.com/fts2026/talk/MUBXWQ/", "attachments": []}, {"guid": "6c3e0133-0498-5179-8744-1e0cef64ce8d", "code": "TGRNT8", "id": 97751, "logo": null, "date": "2026-06-10T16:30:00+02:00", "start": "16:30", "duration": "01:00", "room": "London (\u2193 downstairs)", "slug": "fts2026-97751-lnbits-new-features-the-full-software-hardware-stack-includes-free-hardware-workshop", "url": "https://program.freedomtechsummit.com/fts2026/talk/TGRNT8/", "title": "LNbits: New Features & the Full Software/Hardware Stack (includes free hardware workshop)", "subtitle": "", "track": "Bitcoin Track", "type": "Workshop (1 hour)", "language": "en", "abstract": "A deep dive into the LNbits stack, software and hardware:\n* LNbits Software (20 mins): General overview + merchant stack updates overview, vibe coding extensions with new sandboxing feature\n* LNbitsPoS (5 mins): The all-in-one merchant PoS\n* LNbitsBox (15 mins): Nix-based, plug-and-play LNbits in a box\n* BitcoinSwitch Workshop (20 mins): Pay an invoice \u2192 trigger a real-world action", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "HDTLU3", "name": "Ben Arc", "avatar": "https://program.freedomtechsummit.com/media/avatars/U8ZSJK_QIZpJAy.webp", "biography": "Ben Arc has been actively building and educating in Bitcoin since 2014. He is the creator of LNbits, a widely used wallet and accounts system with a rich extension ecosystem, as well as dozens of hardware projects.\nHis focus has always been on developing tools for the parallel economy that are affordable and accessible, particularly in developing regions. Along the way, he contributed to the development of Nostr, helping write some of the first NIPs, building the first Nostr Twitter client, and now maintaining nostr.com and nostr.org.", "public_name": "Ben Arc", "guid": "fd6fb598-d77d-5425-adff-9a7988cceea6", "url": "https://program.freedomtechsummit.com/fts2026/speaker/HDTLU3/"}, {"code": "WRBGPR", "name": "Vlad Stan", "avatar": null, "biography": "LNbits Contributor", "public_name": "Vlad Stan", "guid": "5c6fd63a-99b3-5d92-a88c-f131f33422e7", "url": "https://program.freedomtechsummit.com/fts2026/speaker/WRBGPR/"}, {"code": "WASHS8", "name": "BlackCoffee", "avatar": "https://program.freedomtechsummit.com/media/avatars/YTS9GJ_9Isg1qX.webp", "biography": "Working on LNbits, building open-source software and hardware for Bitcoin, Lightning and Nostr, with a focus on self-sovereignty, practical payments and freedom technology.", "public_name": "BlackCoffee", "guid": "010d5cf5-4b31-5531-8341-9d083f07f629", "url": "https://program.freedomtechsummit.com/fts2026/speaker/WASHS8/"}, {"code": "98RYMX", "name": "dni", "avatar": null, "biography": ".", "public_name": "dni", "guid": "37d43ee7-3e51-5ef4-9c21-b3820ee122f5", "url": "https://program.freedomtechsummit.com/fts2026/speaker/98RYMX/"}], "links": [], "feedback_url": "https://program.freedomtechsummit.com/fts2026/talk/TGRNT8/feedback/", "origin_url": "https://program.freedomtechsummit.com/fts2026/talk/TGRNT8/", "attachments": []}], "Zurich (\u2191 upstairs)": [{"guid": "d35591d7-50da-5a91-b73d-112c67265906", "code": "WNAPBP", "id": 99275, "logo": null, "date": "2026-06-10T09:30:00+02:00", "start": "09:30", "duration": "00:30", "room": "Zurich (\u2191 upstairs)", "slug": "fts2026-99275-introduction-to-ark", "url": "https://program.freedomtechsummit.com/fts2026/talk/WNAPBP/", "title": "Introduction to Ark", "subtitle": "", "track": "Design Track", "type": "Keynote", "language": "en", "abstract": ".", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "Z9KFEC", "name": "Matthew Vuk", "avatar": null, "biography": "Matthew Vuk is a protocol researcher and developer at Second, working on Bark - an open-source implementation of the Ark protocol. 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