Blockchain

Blockchain is the underlying technology for almost all cryptocurrencies. It is a distributed ledger jointly maintained by decentralized nodes around the world. Blockchain is hailed as "the trust machine", enabling trustless peer-to-peer payments. Blockchain will become the infrastructure for the next generation of the Internet - Web 3.

Articles (4177)

What Is HODL
Beginner

What Is HODL

HODL is a popular term in the cryptocurrency community, and it is also the spiritual pillar to help people get through bull and bear markets.
2026-04-09 10:21:25
What is Liquidity Farming?
Beginner

What is Liquidity Farming?

Liquidity Farming is a new trend in Decentralized Finance (DeFi), which enables crypto investors to fully utilize their crypto assets and obtain high returns.
2026-04-09 10:18:19
What is Stablecoin?
Beginner

What is Stablecoin?

A stablecoin is a cryptocurrency with a stable price, which is often pegged to a legal tender in the real world. Take USDT, currently the most commonly used stablecoin, for example, USDT is pegged to the US dollar, with 1 USDT = 1 USD.
2026-04-09 10:16:21
What Is a Cold Wallet?
Beginner

What Is a Cold Wallet?

A quick overview of what a Cold Wallet is, taking into account its different types and advantages
2026-04-09 10:11:55
What Is Layer 1
Beginner

What Is Layer 1

Main networks in the underlying blockchain ecosystem
2026-04-09 10:09:46
What Is a Fork?
Beginner

What Is a Fork?

A fork occurs when a change to the protocol is proposed and two distinct groups of nodes follow different sets of rules, creating two separate blockchains.
2026-04-09 10:06:23
What Is Layer 2?
Beginner

What Is Layer 2?

Layer 2 is a protocol built on top of an existing blockchain (layer 1) for increased performance and output. This is achieved without compromising the security of the blockchain. With the rise in the number of users and transactions on layer 1 blockchains like Bitcoin and Ethereum, there is a need for increased throughput without compromising security and decentralization.
2026-04-09 10:03:17
What Are Smart Contracts?
Beginner

What Are Smart Contracts?

Decentralized software applications that work using blockchain technology.
2026-04-09 10:02:15
What is a 51% Attack?
Beginner

What is a 51% Attack?

A 51% attack occurs when a group or an individual controls more than 50% of a network's computing and creates invalid transactions to steal tokens.
2026-04-09 10:01:06
What is Proof-of-Stake (PoS)?
Beginner

What is Proof-of-Stake (PoS)?

Proof-of-Stake (PoS) is a consensus mechanism for processing transactions and creating new blocks in a blockchain. In a proof-of-stake blockchain, the staking reward of a validator and the total amount of the staked collateral are often positively related. As each validator attempts to create a block, when a block is selected as a new block, the validator can record the transactions and receive a reward.
2026-04-09 09:58:13
What is Optimism (OP)?
Beginner

What is Optimism (OP)?

As the leading Ethereum layer 2 scaling solution, Optimism has hosted a series of airdrop events and made its name known to the crypto community. This article will bring you into the world of Optimism.
2026-04-09 09:57:15
What is Sharding?
Beginner

What is Sharding?

Sharding is a database partitioning technique that helps blockchains build scalability, allowing transactions to be processed in parallel by multiple sharding chains to reduce network congestion and increase transactions per second (TPS).
2026-04-09 09:55:18
 What is EVM (Ethereum Virtual Machine)?
Beginner

What is EVM (Ethereum Virtual Machine)?

EVM is an abstraction layer between the code and the host that serves as a guarantee to maintain the smooth operation of Ethereum. What is EVM after all? What are the principles and typical use cases of EVM? Let’s dive deeper into it.
2026-04-09 09:54:24
What Is PGP Encryption?
Beginner

What Is PGP Encryption?

Understanding an essential encryption program for the modern age
2026-04-09 09:52:36
What Is a Digital Signature?
Beginner

What Is a Digital Signature?

Digital signature is one of the most important technological features in current identity verification, especially for crypto.
2026-04-09 09:51:45
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