Blockchain Roadmap

From your first hash to Devcon — a smooth beginner-to-advanced progression

Curated for Cypher Space @ NSSCE and every self-learner. Free resources first, verified July 2026.

Beginner to advanced, without the whiplash.

Most people bounce off blockchain because they start in the middle — a Solidity tutorial before understanding a hash, a DeFi thread before owning a wallet. This roadmap fixes the order. Six stages, each with a goal, curated free resources, a checkpoint, and a mini-project. It powers the Cypher Space learning track at NSS College of Engineering — and it works just as well solo.

0Progressive stages
0Curated foundation videos
0Verified free resources
0Students taught so far
How to use this page

Go in order — the smoothness comes from the sequencing. Tick resources as you finish them (progress is saved in your browser). Don't skip checkpoints: each one is the proof you're ready for the next stage. Budget: Stages 0–2 ≈ one month at a few hours a week, the pace our Road to Devcon cohort used. Stages 3–5 are open-ended — that's the point.

Stage 0 · Week 1

Foundations — build the mental model

Before code, before coins: what problem does a blockchain solve, and how do blocks, hashes and consensus actually fit together?

⏱ ~2 hours💰 Free🧠 No prerequisites
Phase 1 videos — the exact watch order
  1. Blockchain Explained in 2 Minutes 2:21 — the hook
  2. Blockchain in 7 Minutes 7:03 — hashing, blocks, mining, Walmart case study
  3. Bitcoin Explained in 5 Minutes 5:42 — the first blockchain application
  4. Proof of Work Explained 7:54 — why blockchain is trustworthy
  5. Merkle Trees in Blockchain 8:45 — the data structure behind verification
  6. What Is Hyperledger? 8:28 — blockchain beyond crypto
  7. What Is an Ethereum DApp? 9:46 — software without central servers
Checkpoint

You can explain to a non-engineer friend, in your own words: what a block is, why hashes make tampering obvious, and what miners actually do. If you can't, rewatch videos 2 and 4.

Mini-project

Play the Hash Chain Simulator on this site: build a chain, tamper with a block, and watch the chain break. Screenshot the broken chain — that screenshot is the core insight of this entire field.

Stage 1 · Weeks 2–3

Core concepts — wallets, keys and the landscape

Go from "I get the idea" to "I hold keys and have sent a transaction." Public/private keys, wallet types, and the four kinds of blockchains.

⏱ ~3 hours💰 Free🔑 You'll create a real wallet
Phase 2 videos — the exact watch order
  1. What is Blockchain? — Introduction 12:49 — distributed ledgers, nodes, consensus
  2. Blockchain Technology Explained 12:30 — block linking and immutability
  3. Types of Blockchain Explained 16:15 — public, private, consortium, hybrid
  4. How Does a Blockchain Work 17:02 — step-by-step, tamper-resistance
  5. Blockchain Wallet Tutorial 18:24 — key pairs, hot vs cold, signing
  6. Hyperledger Fabric & How It Works 8:47 — enterprise blockchain internals
Checkpoint

You have MetaMask installed, you've backed up the seed phrase on paper (never a screenshot), you hold testnet ETH from a faucet, and you've sent a transaction to a classmate and found it on a block explorer.

Mini-project

Play the Banking Journey Game here, then write a 10-line comparison: which steps of a bank transfer disappear on a blockchain, and which new risks appear in exchange?

Stage 2 · Weeks 3–4

First smart contract — theory becomes practice

The exact path our Road to Devcon workshop cohort followed: smart contract theory, then Remix, then a real deployment to a public testnet you can show anyone.

⏱ ~5 hours💰 Free🚀 You'll deploy to a live testnet
Phase 3 + 4 videos — the exact watch order
  1. What is a Smart Contract? 23:22 — lifecycle, execution, advantages
  2. Blockchain 101 — full primer 24:11 — consolidates all concepts so far
  3. How to Create a Smart Contract 24:59 — hands-on Solidity
  4. Ethereum Explained 28:09 — EVM, gas, Solidity basics
  5. Hyperledger in Depth 27:05 — permissioned networks, chaincode
  6. Phase 4 (pick one): 57-min In-Depth · 59-min Developer Tutorial · 2-hour Tutorial · 4-hour Full Course
Checkpoint

A smart contract you wrote is live on a public testnet, verified on a block explorer, and you can read/write to it from a browser wallet. This was the graduation bar for our July 2026 workshop — 50+ students cleared it.

Mini-project

Build the workshop classic: a storage DApp — a contract with a mapping, plus a plain HTML/JS page that connects to MetaMask and updates the value on-chain. Team of one, weekend of effort.

Stage 3 · Months 2–3

Real tooling — build like a professional

Remix got you started; now adopt the stack professionals ship with, and build a full dApp end to end.

⏱ 6–10 weeks💰 Free🛠 Job-ready skills begin here
  • Cyfrin Updraft — Foundry Fundamentals + Advanced The de-facto 2026 job-prep path: forge, cast, anvil, fuzz testing and invariant testing, taught project-by-project. course · free · 60–100h
  • Foundry Book (official docs) Foundry is the dominant toolchain in 2026 — cheatcodes and fork testing live here. docs · free · reference
  • Scaffold-ETH 2 The fastest way to ship a real dApp with a frontend — Next.js + wagmi + viem + TypeScript, pre-wired. toolkit · free · 5–10h to learn
  • Speedrun Ethereum Ten progressive challenges that convert course knowledge into a public portfolio recruiters actually check. challenges · free · 40–80h
  • wagmi + viem The 2026 default frontend stack — viem/wagmi has displaced ethers.js in new projects (ethers is legacy, web3.js is maintenance-mode). library · free · 10–20h
  • Hardhat 3 (second framework) Still the largest installed base and common in enterprise job listings — learn it after Foundry, not instead of it. docs · free · 10–20h
  • ETHSkills — AI-assisted building Austin Griffith's skill docs for building with AI coding agents — the workflow shift of 2026. Short read, big leverage. docs · free · 1–2h
Checkpoint

You can scaffold, test (unit + fuzz) and deploy a contract with Foundry, wire it to a Next.js frontend with wagmi/viem, and you have at least 3 Speedrun Ethereum challenges completed under your own name.

Mini-project

Club Bounty Board dApp — members post small tasks with Sepolia ETH bounties; others claim and get paid on completion. Foundry contracts + Scaffold-ETH 2 frontend, deployed and demoed live at a club session.

Stage 4 · Months 3–6

Specialize — security, DeFi, L2s or ZK

Generalists learn; specialists get hired. Pick one lane, go deep, and start breaking things on purpose.

⏱ Open-ended💰 Free🎯 Pick ONE lane first
Checkpoint

Security track: 15+ Ethernaut levels and 5+ Damn Vulnerable DeFi challenges cleared, and you can write a findings report in audit format. Other tracks: you can explain rollup stages, a Groth16 proof, or an MEV sandwich at whiteboard depth.

Mini-project

Audit your own club. Take the Stage 3 Bounty Board contract, run a mock audit (severity-classified findings, Solodit-style report), then fix and redeploy. Present the before/after at a club session.

Stage 5 · Ongoing

Ship, compete, earn — join the ecosystem

Hackathons, audit contests, bounties, fellowships and grants: the routes from student to funded builder — several of them India-first.

⏱ Ongoing💰 They pay YOU now🇮🇳 India-focused options
Deadlines — late 2026

Aug 6: Devcon 8 discounted-ticket applications close (Indian students ~$25 — apply now) · Aug 8: Road To Devcon online hackathon starts on Devfolio · Sep 4–16: ETHOnline (fully online) · Sep 5–6: ETHKochi, Kochi · Sep 30: EF Road to Devcon 8 India University Program applications close · Nov 3–6: Devcon 8, Mumbai · Nov 6–8: ETHGlobal Mumbai — one trip covers both.

  • CodeHawks First Flights Small, scoped audit contests judged like real audits — the fastest credibility ladder for a student security specialist. contest · free · 10–40h each
  • ETHKochi 2026 (Sep 5–6, Kochi) Free, in-state, KSUM-backed, teams of 1–4 — the easiest flagship hackathon for a Kerala club. Applications open on Devfolio now. hackathon · free · one weekend
  • ETHGlobal — ETHOnline (Sep) + ETHGlobal Mumbai (Nov 6–8) ETHOnline is async and needs no travel; ETHGlobal Mumbai runs at BKC right after Devcon — polish one project across both. hackathon · free · 40–80h
  • Devfolio hackathon listings The home of Indian web3 hackathons — set up your profile now; the Road To Devcon online hackathon (from Aug 8) runs here. platform · free · ongoing
  • EF Road to Devcon 8 — India University Program Funding for campus clubs to run workshops and hackathons; funded initiatives can request up to 5 Devcon tickets. Cypher Space is a grantee — your club can be too. Deadline Sep 30. grant · free to apply · 5–10h
  • Devcon 8 — Mumbai, Nov 3–6 The first Devcon in India. Indian-student tickets ~$25; discounted applications close Aug 6, and the Devcon Scholars program covers travel for those who need full support. conference · ~$25 student · 4 days
  • Fellowships: yAudit, EF Next Billion, Polygon, MLH Web3 Fellowships fast-track careers past the hackathon grind — mentorship from protocol teams, sometimes stipends. From my X bookmarks; yAudit is the security-auditor route. fellowship · free · selective
  • Earning routes: Immunefi, Sherlock, Cantina, Gitcoin Bug bounties and audit contests are realistic first Web3 income — after Stage 4. Immunefi absorbed Code4rena's community in 2026; first valid findings typically come 6–12 months into focused study. bounty · free · ongoing
  • Kerala Blockchain Academy Kerala government's blockchain centre of excellence (Digital University Kerala): Ethereum developer programs, free certified courses, and college Innovation Clubs. institution · free/freemium · ongoing
  • web3.career — India board 750+ India listings with intern/entry filters. The strongest junior route remains: hackathon wins + a public Speedrun/First Flights portfolio + showing up at Devcon. jobs · free · ongoing
Checkpoint

You can point to a public record — a First Flight submission with valid findings, a hackathon project page, or a Speedrun portfolio — and you're registered for at least one in-person event with the club.

Mini-project

One team, one Mumbai trip, two events. Enter ETHKochi (Sep) as the warm-up, ship the same idea properly in ETHOnline (Sep), then take the polished project to ETHGlobal Mumbai (Nov 6–8) — attending Devcon 8 (Nov 3–6) on student tickets in the same trip.

The landscape in 2026 — save yourself the dead ends

Testnets: Sepolia is THE app-developer testnet (supported until ~Sep 2026 — check ethereum.org for its successor before new deployments late in the year). Hoodi replaced Holesky but is for validators only. Goerli, Ropsten, Rinkeby, Kovan: long dead — close any tutorial that mentions them.
Frameworks: Foundry (forge/cast/anvil) is the 2026 primary — it's what Cyfrin, CodeHawks and Damn Vulnerable DeFi all teach. Hardhat 3 is the enterprise second. Truffle and Ganache were sunset in 2023; skip anything built on them.
Frontend: viem + wagmi + Scaffold-ETH 2 (Next.js/TypeScript) is the default new-project stack. ethers.js v6 is legacy-common; web3.js is maintenance-mode. Remix is for week one, not real projects.
Gone in 2026: Buildspace (shut down 2024), Code4rena (shut down May 2026 — Immunefi absorbed its wardens; old reports still gold via Solodit), Secureum RACEs (paused; the book remains canonical), the old freeCodeCamp 32-hour Solidity video (superseded by Cyfrin Updraft, same author).
The 2026 shift: AI-agent-assisted building is now part of the standard workflow — see ETHSkills. Learning the fundamentals still matters more, not less: you have to review what the agent writes.
India flagship: No official ETHIndia 2026 announced — ETHGlobal Mumbai (Nov 6–8) is the confirmed flagship, immediately after Devcon 8. Watch @ETHIndiaco for changes.

Who to follow on X

Curated from my own bookmarks — accounts whose threads repeatedly ended up in this roadmap.

The destination: Devcon 8, Mumbai

Why this roadmap exists

Devcon 8 happens November 3–6, 2026 at the Jio World Centre, Mumbai — the first Devcon in India. Cypher Space, our blockchain interest group at NSS College of Engineering, ran an Ethereum Foundation "Road to Devcon 8" builder series in July 2026 built on the early stages of this exact progression: reading groups, a hands-on Solidity workshop, and a mini-hackathon. Upcoming club sessions (Solidity Workshop, AI in Blockchain, CypherHack 2026) continue down this page. Follow along at cypherspace.in and @EFDevcon.