https://watchz.cash/about/instance/homehttps://watchz.cash/videos/browse?scope=localhttps://watchz.cash/w/qVM8TDLMKUHYAFLcCVV3Xmhttps://watchz.cash/lazy-static/thumbnails/9960b2db-3b9b-457d-9293-8fcd31328d71.jpgState of the Network Keynote at Zcon0 (2018) by Zooko WilcoxZooko Wilcox talks about Zcash network upgrades Overwinter and Sapling, the New York State Department of Financial Services (NYDFS) approval of Zcash including shielded addresses, Zcash Company finances and the proposed roadmap for the next two years. Live at Zcon0 - Privacy From A to Zcon (2018) Presented by ‪@zcashfoundation‬ in Montreal, Canada 00:00 Introduction 01:50 Network Upgrade Overwinter 03:04 The consensual decentralized governance process 05:13 Zcash Sapling 06:08 Educating regulators about user-protecting technology 07:22 Zcash approved by New York State Department of Financial Services (NYSDFS) 08:14 Zcash Company mid-2018 finances exposed 11:47 Open questions that need to be addressed by the community 12:28 Roadmap for Zcash useability and adoption 14:08 How should the development of Zcash be funded after the Founders Reward? 14:31 Decentralization of Zcash governancehttps://watchz.cash/static/streaming-playlists/hls/c9dd9050-4892-479a-8d49-b1bbd231a5aa/c901c218-70de-409b-ab4c-5a34510358fd-master.m3u8https://watchz.cash/videos/embed/qVM8TDLMKUHYAFLcCVV3Xm982012026-04-28T16:26:50.046Znetwork upgradesblockchainprivacycryptozconYESZconNOhttps://watchz.cash/w/3q7zbsmGrrAvcqdaR9vX2ahttps://watchz.cash/lazy-static/thumbnails/4233c054-9d66-434b-b736-04cc9566ad63.jpgFrom Zerocoin To Zcash at Zcon0 (2018) by Matthew GreenMatthew Green presents the history of electronic cash and the scientists whose work with zero-knowledge proofs led to the creation of Zcash, the problem with Bitcoin's transparency and where Zcash might go in the near future. Live at Zcon0 - Privacy: From A to Zcon (2018) Presented by ‪@zcashfoundation‬ in Montreal, Canada 00:00 Intro 02:02 A short history of electronic cash 05:16 Bitcoin and its privacy problem 08:05 Zerocoin and zero-knowledge proofs 10:35 Zerocash and zkSNARKs 12:57 Zooko and the Zcash Company 14:30 The future of Zcash, maybe 17:08 Outrohttps://watchz.cash/static/streaming-playlists/hls/13902d90-5c65-43ed-a00b-3b7bdad395e7/8224d63c-9fcb-40cf-9e3c-246d6313b591-master.m3u8https://watchz.cash/videos/embed/3q7zbsmGrrAvcqdaR9vX2a1076012026-04-28T16:27:03.931Zzconprivacyzero knowledge proofselectronic cashblockchainsYESZconNOhttps://watchz.cash/w/8WNNuUFei16fx8cCEt2FtPhttps://watchz.cash/lazy-static/thumbnails/42645f3b-d3f5-4e1b-afe4-efc4654ee4b5.jpgA History of Zcash at Zcon0 (2018) by Nathan WilcoxNathan Wilcox tells the story of Zcash's first few years, Sprout, Overwinter, Sapling and the funnest bugs discovered and fixed in that process. Live at Zcon0 - Privacy: From A to Zcon (2018) Presented by ‪@zcashfoundation‬ in Montreal, Canada 00:00 Intro 00:38 Birth of Zcash 02:52 Convergence at Real World Crypto 03:47 Zcash 1.0 "Sprout" 05:07 Zcash "Overwinter" Series 05:52 The path to Zcash "Sapling" 06:51 The Funnest Bugs 14:50 Parting thoughts on the future of Zcash securityhttps://watchz.cash/static/streaming-playlists/hls/4056fa0d-9fe9-45e8-94f3-b526a07838e1/3e286ddd-c19a-498c-824c-696c12d173f5-master.m3u8https://watchz.cash/videos/embed/8WNNuUFei16fx8cCEt2FtP1102022026-04-28T16:27:23.689ZsaplingzconcryptooverwintersecurityYESZconNOhttps://watchz.cash/w/g452nQzuAA6M1YSRL46yEehttps://watchz.cash/lazy-static/thumbnails/38720dec-f4b2-4ae7-80d6-915150539cfe.jpgCultivating Sapling at Zcon0 (2018) by Sean BoweSean Bowe gives an overview of Zcash "Sapling" detailing changes to the elliptical curves, zk-SNARK proving system, parameter generation and the breakthrough performance improvements that were included with the upgrade. Live at Zcon0 (2018) Privacy: From A to Zcon Presented by ‪@zcashfoundation‬ in Montreal, Canada 00:00 Introduction 02:17 Zcash payment addresses and transactions 04:24 Privacy by default 05:40 Zcash Network Upgrade "Sapling" 06:37 BLS12-381: A new pairing-friendly curve 08:19 Groth-16 zk-SNARK proving system 09:00 Powers of Tau and Sapling multi-party computation (MPC) 10:51 Sapling upgrade summary 11:35 Overview of Zerocash 12:49 Jubjub embedded elliptic curve 14:14 Sapling addresses and viewing keys 15:30 Split circuit design of Sapling 16:08 Groundbreaking performance improvements 17:43 Sapling engineering summaryhttps://watchz.cash/static/streaming-playlists/hls/79e6ca79-f3f9-405b-982a-3004acdc21e1/f1b2eb20-4428-4943-be09-cbd24dd6f5dc-master.m3u8https://watchz.cash/videos/embed/g452nQzuAA6M1YSRL46yEe1130012026-04-28T16:27:37.632ZzconblockchaincryptoupgradesaplingYESZconNOhttps://watchz.cash/w/3UwVVqTepGGjrU3XTSv53Dhttps://watchz.cash/lazy-static/thumbnails/56fa68f9-5561-4496-a22b-c812f2259e5c.jpgZcon1 Opening Keynote - Andrew MillerPresented by Zcash Foundation in Split, Croatia 0:00 Introduction 0:52 What is Zcash 2:49 Opening Ceremony 7:40 Deshielded transactions 8:28 Opening message 12:26 ZCash Foundation 13:11 Grants 13:43 Difficult Decisions 14:26 Decentralization 16:04 Community Governance 17:37 Chain Governance 18:09 Coinholder Voting 18:39 Participation 19:29 Alternate Code 19:59 Coinholder Petitions 20:50 Conclusionhttps://watchz.cash/static/streaming-playlists/hls/178803b2-fc86-49ec-9b6f-f0cd65329a71/b548bc72-59e7-470d-9f8a-f74ac26979fc-master.m3u8https://watchz.cash/videos/embed/3UwVVqTepGGjrU3XTSv53D1291012026-04-29T20:30:49.319Zcoinholdersgrantsgovernancevotingzcon1YESZconNOhttps://watchz.cash/w/9YwRuGzB9PEWxgBMPKQa2rhttps://watchz.cash/lazy-static/thumbnails/c861e81c-d5f5-4a77-a7df-2705173db786.jpgThe State of Privacy in Cryptocurrencies - Ian MiersIan Miers - Day1 Presented by Zcash Foundation in Split, Croatia 0:00 libra 2:43 Evaluating cryptocurrency privacy is hard 8:27 What's in a tweet from your bank account? 8:58 Blockchain privacy is not intuitive. 10:21 Privacy approaches 11:25 Payments in Bitcoin 12:30 Taint tree: possible ancestor payments 13:26 Overseer attack: tracking customers 14:14 Overseer attack: tracking repeat customers 14:36 Flashlight attack: identifying anonymous merchants 16:49 A larger problem: known decoy attack 18:28 coinbase 18:47 Mimblewimble/Grin/Beam 22:12 Beware of privacy theater 23:08 Different problem: usability 23:45 Conclusionhttps://watchz.cash/static/streaming-playlists/hls/48adc642-e089-4655-b549-7b2ecab83de7/1f674b46-4c8e-451d-bc58-98dcbc21e327-master.m3u8https://watchz.cash/videos/embed/9YwRuGzB9PEWxgBMPKQa2r1552042026-04-29T22:34:23.857Zzcon1privacytwitterpaymentsusabilityYESZconNOhttps://watchz.cash/w/jGff6UNfQiQQTCXygirGkYhttps://watchz.cash/lazy-static/thumbnails/49b9c979-c4eb-40e8-b943-2d9e3b33308c.pngThe Orchard Shielded Pool, feat. Halo2NU5 brings the third shielded pool, Orchard, to the Zcash protocol. Orchard is similar in a lot of ways to Sapling, but for some very important differences: the new Halo 2 recursive zk-SNARK proof system, based on new cyclic curves Pallas and Vesta; Actions instead of Spends or Outputs; and more. This session will lay out what Orchard brings to Zcash, how it differs from Sapling, and how Halo 2 removes the trusted setup for parameters and sets up Zcash for using recursive proofs in future upgrades. Speakers: Sean Bowe is a cryptographic engineer and researcher who has implemented, designed and discovered state-of-the-art cryptographic primitives and techniques, particularly focused on SNARKs and recursive proofs. His main focus is on building and improving Zcash's shielded protocol. Twitter @ebfull Daira Hopwood is an anarchist, cryptographer, ZIP editor, and the lead author of the Zcash Protocol Specification. Ze has been heavily involved in the design of the shielded protocols used in Zcash since before launch. Twitter @feministPLT Deirdre Connolly is a cryptographic engineer and the senior engineer on Zebra, working at the Zcash Foundation since spring 2019. When not trying to deploy secure, resilient, and respectful cryptographic systems, she is keeping one eye on the quantum-safe cryptosystems of the future. Twitter @durumcrustulum Look for us on Twitter #Zcon2Litehttps://watchz.cash/static/streaming-playlists/hls/9763063a-1f61-4937-9ca5-74c9f7c14dfe/5b2aaebf-1af4-4dc0-a044-1eecaf143166-master.m3u8https://watchz.cash/videos/embed/jGff6UNfQiQQTCXygirGkY3390002026-04-29T17:18:38.540ZYESZconNOhttps://watchz.cash/w/hkDw3xVFrQZGATirw7cJVEhttps://watchz.cash/lazy-static/thumbnails/283c9307-2782-4949-81c5-27558d9f9723.jpgMoney at the Edge: How People Stay Afloat in Venezuela - Alejandro MachadoAlejandro Machado - Day3 Presented by Zcash Foundation in Split, Croatia 0:00 Introduction to Open Money Initiative and research focus 1:42 Research methodology in Venezuela and Colombia 3:44 Three buckets of insights: Confident, Resilient, Open 4:18 Confident: Social networks and Hawala for money exchange 7:55 Confident: Thriving amidst hyperinflation and scams 10:05 Resilient: Unpredictable infrastructure and informal economy 11:31 Resilient: Leaving Venezuela and reluctant reliance on Bolivar 14:24 Open: Discrimination from foreign systems like Zelle 15:11 Open: Using Bitcoin and LocalBitcoins for savings 17:04 Opportunity areas and product concepts introduction 17:28 Confident concepts: Ambassadors and growing circles marketplace 19:04 Resilient concepts: Offline transfers and NFC bills 20:48 Open concepts: USD wallets, money changers, and universal POS 23:05 Engineering victories: Coinbase light wallet and Daily wallet 24:42 Conclusion: Why we need open digital cash and privacyhttps://watchz.cash/static/streaming-playlists/hls/845078b2-d185-42ac-bf1c-4b24c0b308a8/3f01eb75-9b4b-409d-b7da-9718027b4da9-master.m3u8https://watchz.cash/videos/embed/hkDw3xVFrQZGATirw7cJVE1537012026-04-29T22:32:56.725Zpaymentszcon1researchvenezuelalatamYESZconNOhttps://watchz.cash/w/vBkZMNCAJXj1dkg5pMWdorhttps://watchz.cash/lazy-static/thumbnails/46729146-7d29-496a-92c8-987ae289ba57.pngFROSTIn this talk, we will introduce FROST and the motivations for its design. We will review the security model under which FROST is secure, and how this security model compares to practical deployments of threshold signatures. We will discuss how FROST is compatible with existing Schnorr-based schemes, as well as next steps for FROST to be deployed in Zcash. Speaker: Chelsea Komlo is a cryptography and privacy researcher. Currently, she is a member of the Cryptography, Security, and Privacy lab at the University of Waterloo, and also working as a principal researcher for the Zcash Foundation. She is also a member of the Tor Project Board of Directors and the Tor Research Safety Board. Twitter @chelseakomlo Look for us on Twitter #Zcon2Litehttps://watchz.cash/static/streaming-playlists/hls/efc86054-c2c8-4e9c-86e6-dbfbb8b7e5e5/594693ca-fbcf-4633-bc77-38b2d30dd6ff-master.m3u8https://watchz.cash/videos/embed/vBkZMNCAJXj1dkg5pMWdor1750012026-04-29T22:34:41.020ZYESZconNOhttps://watchz.cash/c/zcon/videoshttps://watchz.cash/a/root/video-channels