[{"data":1,"prerenderedAt":108},["ShallowReactive",2],{"blog-post-\u002Fblog\u002Fstudent-cohort-3":3},{"id":4,"title":5,"author":6,"body":7,"category":90,"cover":91,"date":92,"description":93,"extension":94,"featured":95,"meta":96,"navigation":97,"path":98,"readingTime":99,"seo":100,"stem":101,"tags":102,"__hash__":107},"blog_en\u002Fblog\u002Fstudent-cohort-3.md","DVB Student Cohort 3: From Blockchain Basics to DeFi in One Day","DeVinci Blockchain",{"type":8,"value":9,"toc":80},"minimark",[10,14,17,22,25,29,32,35,38,42,45,49,52,56,67,70,73,77],[11,12,13],"p",{},"On Friday, September 18, DeVinci Blockchain held the third edition of the DVB Student Cohort on the Pôle Léonard de Vinci campus, in La Défense. About 100 students spent the day learning how blockchains work, how to keep control of their own keys and how decentralized finance operates. Attendance was free, no prior knowledge was required, and the day was sponsored by Trezor.",[11,15,16],{},"The evening before, DVB had invited students to the DeVinci Blockchain Community Night at Gargalou, in La Défense: a back-to-school evening with a drink on the house and appetizers, to meet the team and members of the association.",[18,19,21],"h2",{"id":20},"starting-from-the-fundamentals","Starting from the fundamentals",[11,23,24],{},"The morning opened with the basics: blocks, nodes, consensus and smart contracts. The session explained how transactions are grouped into blocks and chained together, how the computers of a network agree on a single version of that history, and how programs can run on top of it.",[18,26,28],{"id":27},"self-custody-with-trezor","Self-custody with Trezor",[11,30,31],{},"After lunch, Trezor, the company that built the first hardware wallet in 2014, ran the self-custody session. Its team covered what a wallet really is, hot and cold storage, private keys and seed phrases, before an open Q&A.",[11,33,34],{},"A wallet does not hold coins: it holds the private keys that sign transactions. A hot wallet keeps those keys on a device connected to the internet, while a cold wallet, such as a hardware device, keeps them offline. The seed phrase, a list of words generated when the wallet is created, can restore those keys, so anyone who has it controls the funds.",[11,36,37],{},"Trezor hardware wallets were also on offer through a referral contest: the students who brought the most people to the Cohort each won one. In total, participants won more than 20 Trezor hardware wallets.",[18,39,41],{"id":40},"hands-on-defi","Hands-on DeFi",[11,43,44],{},"Later in the afternoon, DVB members led a hands-on workshop on three building blocks of decentralized finance. Automated market makers (AMMs) let users swap tokens against a shared pool of liquidity, with prices set by a formula rather than by an order book. Lending protocols let users deposit assets to earn interest, or borrow against collateral. Yield is what these mechanisms pay to the people who supply the capital.",[18,46,48],{"id":47},"an-alumni-panel-and-a-closing-cocktail","An alumni panel and a closing cocktail",[11,50,51],{},"Four DVB alumni then came back to campus for a panel on their own paths in Web3, and took questions from the students. The day ended with a closing cocktail, which was also the moment to sign up for the next day's hackathon.",[18,53,55],{"id":54},"three-trips-to-lisbon","Three trips to Lisbon",[11,57,58,59,66],{},"Participants could also win one of three trips to HackMeridian in Lisbon, with flights and hotel covered. ",[60,61,65],"a",{"href":62,"rel":63},"https:\u002F\u002Fwww.hackmeridian.com\u002F",[64],"nofollow","HackMeridian"," is the Stellar hackathon taking place on October 25 and 26 at ONE16, just before the Meridian conference. It has two tracks, Genesis for new ideas and Scale for existing products, and a prize pool of up to $30,000 in XLM.",[11,68,69],{},"Only students whose attendance was recorded on the day were eligible. Shortly before midnight on September 21, DVB froze the list of eligible participants and recorded its SHA-256 hash, a fingerprint that changes if a single letter of the list changes, along with the number of the drand round that would decide the draw. The random value then came from drand, a public randomness network: that round was published at midnight on September 22, after the list was frozen.",[11,71,72],{},"Each participant received a ticket computed from that value and a hash of their email address, and the three lowest tickets won. The next three were named alternates, in order: if a winner withdraws, the place goes to the next one, with no new draw. DVB then published the draw data, so anyone can recompute the result, from the frozen list to the final ranking.",[18,74,76],{"id":75},"back-to-school-week","Back-to-school week",[11,78,79],{},"The Cohort was the second of DVB's three back-to-school events that week: the next day, Saturday, September 19, the same campus hosted Monad Blitz Paris, a 12-hour hackathon co-hosted by DVB and the Monad Foundation, where Cohort participants had priority access.",{"title":81,"searchDepth":82,"depth":82,"links":83},"",2,[84,85,86,87,88,89],{"id":20,"depth":82,"text":21},{"id":27,"depth":82,"text":28},{"id":40,"depth":82,"text":41},{"id":47,"depth":82,"text":48},{"id":54,"depth":82,"text":55},{"id":75,"depth":82,"text":76},"Event","\u002Fblog\u002Fstudent-cohort-3.jpg","2026-09-18","About 100 students joined DVB Student Cohort 3 for a free day of blockchain basics, self-custody with Trezor and hands-on DeFi.","md",false,{},true,"\u002Fblog\u002Fstudent-cohort-3",null,{"title":5,"description":93},"blog\u002Fstudent-cohort-3",[103,104,105,106],"Trezor","DeFi","self-custody","cohort","tgbM2nzsQkqyNeW8HyMnm6k7tpmVTUQ49_whcC3oa9I",1793038221468]