Blockchain & Web3 · 05 Oct · 6 min read
What Are Zero-Knowledge Proofs?
Zero-knowledge proofs let one party prove a statement is true without revealing the underlying data. See how they work and where blockchains use them.
Research · Learn Crypto
Learn Crypto
Crypto education and research.
Latest
What Is a 51% Attack?
A 51% attack lets whoever controls most of a network's mining or stake rewrite recent blocks and double-spend. See how it works, a real case and who is at risk.
What Is a Blockchain Fork? Hard Forks vs Soft Forks
A blockchain fork is a change or split in a chain's rules. Learn hard vs soft forks, real Bitcoin examples and what a fork means for your coins.
Blockchain Myths That Still Get Repeated
Blockchain is not automatically anonymous, immutable, decentralized or secure. Here are the claims that cause the most confusion and what is actually true.
What Is a Blockchain Node?
A blockchain node is a computer that keeps a copy of the chain and checks the rules. Learn the main node types, what running one involves and why it matters.
What Is a Blockchain Oracle?
A blockchain oracle feeds outside data, like prices or results, into smart contracts. Learn how oracles work, the oracle problem and how they fail.
What Is a Cross-Chain Bridge and Why Do Bridges Get Hacked?
A cross-chain bridge moves assets between blockchains by locking and minting tokens. Learn how bridges work, why they get hacked and how to stay safe.
What Is Data Availability in Blockchains?
Data availability means a block's data is published so anyone can check it. Learn why rollups depend on it, how blobs work and what sampling does.
Layer 1 vs Layer 2 Blockchains
Layer 1 vs layer 2: base chains secure and settle, while layer 2s process transactions faster and cheaper and post results back. See the trade-offs.
What Is a Modular Blockchain?
A modular blockchain splits execution, settlement, consensus and data availability across layers. See how it differs from monolithic chains.
What Is Proof of Stake?
Proof of stake secures a blockchain with locked-up coins instead of mining. Learn how validators are chosen, how slashing works and what stakers risk.
Proof of Work vs Proof of Stake
Proof of work vs proof of stake: how each secures a blockchain, what an attack costs, energy use, finality and decentralization trade-offs, side by side.