⛓️ Blockchain & Web3

Decentralized Ledgers • Smart Contracts • Cryptocurrency • DeFi

Master distributed consensus, token standards, dApp development, and the future of decentralized finance — 48+ core blockchain topics.

48+

Blockchain Protocols & Web3 Technologies

Beginner

📦

Blockchain Fundamentals

Blocks, hashes, immutability, decentralized ledger basics.

Cryptographic Hash Functions

SHA-256, properties (preimage resistance, collision resistance).

Merkle Trees

SPV proofs, efficient verification, binary hash tree.

Public/Private Key Crypto

ECDSA, digital signatures, wallet generation.

Proof of Work (PoW)

Mining, difficulty adjustment, 51% attack, energy trade-offs.

Proof of Stake (PoS)

Validators, slashing, Ethereum merge, staking pools.

DPoS & PBFT

Delegated proof of stake, practical Byzantine fault tolerance.

Avalanche Consensus

DAG-based, sub-second finality, repeated subsampling.

Ethereum & EVM

Ethereum Virtual Machine, gas, accounts, world state.

Solidity Language

Smart contract syntax, modifiers, events, inheritance.

Token Standards (ERC-20, ERC-721, ERC-1155)

Fungible tokens, NFTs, multi-token, interfaces.

Smart Contract Security

Reentrancy, overflow, access control, audits, formal verification.

Layer 2 Scaling (Rollups)

Optimistic rollups, ZK-rollups, Arbitrum, Optimism.

Scaling

Advanced

🔗

Plasma & Sidechains

Child chains, fraud proofs, Polygon PoS.

Framework

Expert

🔐

Zero-Knowledge Proofs (ZK-SNARKs/STARKs)

Privacy-preserving, validity proofs, zkEVM.

Cryptography

Intermediate

🏦

Decentralized Finance (DeFi)

AMMs, lending, staking, yield farming, Uniswap, Aave.

Blockchain Oracles

Chainlink, off-chain data, decentralized oracles.

Cross-Chain Bridges

Interoperability, wrapped assets, bridge security risks.

Web3.js & Ethers.js

Interacting with blockchain, sending tx, reading contract state.

NFTs & Metadata

IPFS, on-chain/off-chain metadata, marketplaces, royalty.

Crypto Wallets (HD, MetaMask)

Mnemonic phrases, BIP39, Hierarchical Deterministic wallets.

IPFS & Filecoin

Distributed storage, content addressing, pinning.

Decentralized Storage

Web3

Beginner

₿

Bitcoin: UTXO Model

Unspent transaction outputs, scripting, halving.

Lightning Network

Payment channels, HTLCs, off-chain scaling for Bitcoin.

Microtransactions

Advanced

🕸️

DAG-based DLT (IOTA, Hedera)

Directed acyclic graph, no blocks, high throughput.

Sharding & Danksharding

Ethereum sharding, data availability sampling, danksharding.

MEV & Flashbots

Maximal extractable value, priority fees, sandwich attacks.

DAOs & On-chain Governance

Decentralized autonomous organizations, voting, token-based.

Governance

Org

⛓️ Web3 Learning Roadmap

🔰 Foundation

Blocks, hashes, keys, BTC basics, wallets, PoW intro.

⚙️ Builder

Ethereum, Solidity, ERC tokens, DeFi protocols, web3.js.

🔥 Architect

Layer 2 rollups, ZK proofs, oracles, cross-chain bridges, security audits.

🏛️ Researcher

MEV, sharding, DAG consensus, DAOs, cryptoeconomic models.

🌐 Build the Decentralized Future

Launch dApps, write smart contracts, explore DeFi & Web3 infrastructure.

Back to Home Web3 Services

⛓️ Blockchain & Web3

Blockchain Fundamentals

Cryptographic Hash Functions

Merkle Trees

Public/Private Key Crypto

Proof of Work (PoW)

Proof of Stake (PoS)

DPoS & PBFT

Avalanche Consensus

Ethereum & EVM

Solidity Language

Token Standards (ERC-20, ERC-721, ERC-1155)

Smart Contract Security

Layer 2 Scaling (Rollups)

Plasma & Sidechains

Zero-Knowledge Proofs (ZK-SNARKs/STARKs)

Decentralized Finance (DeFi)

Blockchain Oracles

Cross-Chain Bridges

Web3.js & Ethers.js

NFTs & Metadata

Crypto Wallets (HD, MetaMask)

IPFS & Filecoin

Bitcoin: UTXO Model

Lightning Network

DAG-based DLT (IOTA, Hedera)

Sharding & Danksharding

MEV & Flashbots

DAOs & On-chain Governance

⛓️ Web3 Learning Roadmap

Related Computer Science Domains

🌐 Build the Decentralized Future