Learn crypto and blockchain

Videos and Articles

Beginner

Intermediate

Expert

Twitter and Threads logos are displayed on a cell phone (Justin Sullivan/Getty Images)

What Is ActivityPub? Understanding the Social-Media Protocol Meta’s Threads Plans to Use

Meta’s launch of Threads has brought new interest in ActivityPub and how the social network protocol and the associated fediverse – including the Twitter-like Mastodon – work.

By Toby Bochan

Jul 10, 2023 at 5:31 p.m. UTC

Jul 10, 2023

Beginner

#Learn

Beginner

#Technology

#Web3

#Social Media

#Mastodon

#Threads

#Meta

What Is Decentralized File Storage?

For those looking for an alternative to cloud storage giants Google and Dropbox, crypto networks offer a Web3 solution.

By Robert Stevens

Apr 5, 2023 at 7:58 p.m. UTC

Apr 5, 2023

Beginner

#Learn

Beginner

#Technology

#Storage

How to Turn Your Community Into a DAO

Understanding how a decentralized autonomous organization works is the first step to bringing your existing community into Web3.

By Lia Savillo

Jan 16, 2023 at 10:48 p.m. UTC

Jan 16, 2023

Beginner

#Learn

Beginner

#Technology

#DAO

#Blockchain

What Is a Multisig Wallet?

Multisignature wallets require more than one private key and adds a layer of security to cryptocurrency asset storage.

By Griffin Mcshane

Dec 14, 2022 at 10:00 p.m. UTC

Dec 14, 2022

Beginner

#Learn

Beginner

#Technology

#Wallet

Custodial vs. Non-Custodial Crypto Exchanges: What You Need to Know

Following the downfall of FTX, many crypto investors are wondering if a non-custodial option is a safer bet for their coins.

By Robert Stevens

Nov 29, 2022 at 10:36 p.m. UTC

Nov 29, 2022

Beginner

#Learn

Beginner

#Technology

#DEX

#custodial account

What Is Zion, the Web5 Social Network App?

After Elon Musk's acquisition of Twitter, many people are looking for alternatives and wondering what the future of social networks may be. One contender is Zion, which uses Web5 components.

By Chris Sotraidis

Nov 22, 2022 at 6:50 p.m. UTC

Nov 22, 2022

Beginner

#Learn

Beginner

#Technology

#Web3

Trezor and Ledger wallets (regularguy.eth/Unsplash)

How Do Hardware Wallets Keep Crypto Safe?

Interest in cold storage systems like Ledger and Trezor has skyrocketed following the bankruptcy of FTX.

By Robert Stevens

Nov 21, 2022 at 11:08 p.m. UTC

Nov 21, 2022

Beginner

#Learn

Beginner

#Technology

Proof of Reserves Explained

After FTX’s stunning meltdown, many are calling for crypto exchanges to prove they have enough assets in reserve to offset any outstanding liabilities.

By Robert Stevens

Nov 14, 2022 at 11:19 p.m. UTC

Nov 14, 2022

Intermediate

#Learn

Intermediate

#Technology

Sergey Nazarov (left) and Jonathan Ehrenfeld Solé (Chainlink Labs)

SWIFT Is Partnering With Chainlink: Here’s the Down-low on the Blockchain Data Provider

Chainlink said it is helping Belgium-based SWIFT make token transfers and communicate across all blockchain environments.

By Camomile Shumba

Nov 2, 2022 at 9:22 p.m. UTC

Nov 2, 2022

Beginner

#Learn

#Chainlink

#Chainlink Labs

#SWIFT

#Blockchain

#Crypto

Beginner

#Technology

Open Source: What It Is and Why It's Critical for Bitcoin and Crypto

Cryptocurrencies rely on open-source code not only to function but also to build trust and transparency.

By Alyssa Hertig

Oct 6, 2022 at 1:49 p.m. UTC

Oct 6, 2022

Beginner

#Learn

#Technology

Beginner

The Quick and Comprehensive Guide to Blockchain for Corporate Executives

Companies are predicting blockchain will be key to driving innovation and economic growth. Here’s what business leaders need to know about the technology.

By Ekin Genç

Sep 28, 2022 at 6:32 p.m. UTC

Sep 28, 2022

Beginner

#Learn

#Technology

Beginner

#Education Week

#Blockchain

How to Teach Yourself Blockchain: A Guide for Budding Builders

Web3 developers and teachers weigh in with practical advice to help anyone get started building on blockchain.

By Ekin Genç

Sep 28, 2022 at 6:31 p.m. UTC

Sep 28, 2022

Beginner

#Learn

#Blockchain

#Technology

Beginner

#Education Week

Kraken: How to Get Started on the Crypto Exchange

We take a look at the pros and cons of one of the older crypto exchanges on the market. Here’s what you need to know about Kraken.

By Stephan Roth

Sep 22, 2022 at 9:38 p.m. UTC

Sep 22, 2022

Beginner

#Learn

Beginner

#Technology

#Kraken

#Crypto Exchange

What Is Blockchain Technology?

Blockchain technology eliminates the need for a trusted party to facilitate digital relationships and is the backbone of cryptocurrencies.

By Annika Feign

Sep 19, 2022 at 5:00 p.m. UTC

Sep 19, 2022

Beginner

#Technology

#Learn

Staking crypto (Jay Radhakrishnan/Getty Images)

Crypto Staking 101: What Is Staking?

Staking is a popular way to earn passive income with your crypto investments. Here’s how you can start.

By Krisztian Sandor

Sep 16, 2022 at 9:09 p.m. UTC

Sep 16, 2022

Beginner

#technology

beginner

#learn

What's the Point of Stablecoins? The Reasons, Risks and Types to Know

Stablecoins are meant to provide a predictable haven within the volatile world of cryptocurrency, but they haven't always been as stable as the name promises.

By Megan DeMatteo

Sep 16, 2022 at 7:32 p.m. UTC

Sep 16, 2022

Intermediate

#Technology

Intermediate

#Learn

#Stablecoins

A U.S. dollar coin balances on top of rocks

What Is a Stablecoin?

With PayPal's announcement that they are creating a U.S. dollar-pegged stablecoin, PayPal USD (PYUSD), many are wondering about this type of cryptocurrency and how it functions.

By Alyssa Hertig

Sep 16, 2022 at 7:28 p.m. UTC

Sep 16, 2022

Beginner

#Technology

Beginner

#Learn

#Stablecoin

What Is Proof-of-Stake?

Proof-of-stake is a method of maintaining integrity in a blockchain, ensuring users of a cryptocurrency can’t mint coins they didn’t earn.

By Alyssa Hertig

Sep 16, 2022 at 6:47 p.m. UTC

Sep 16, 2022

Intermediate

#Technology

Intermediate

#Learn

Are Blockchain Bridges Safe? Why Bridges Are Targets of Hacks

Billions of dollars worth of digital assets have been lost to hackers of blockchain bridges. We explain why and how bridges can be exploited.

By Marcus Chan

Aug 17, 2022 at 7:11 p.m. UTC

Aug 17, 2022

Beginner

#Learn

Beginner

#Technology

Are Crypto Mixers Legal?

These tools, aka blenders, can enhance user privacy and make transactions more anonymous – but they have long been abused to launder money.

By Rosie Perper

Aug 10, 2022 at 3:44 p.m. UTC

Aug 10, 2022

Intermediate

#Learn

#Technology

Intermediate

Crypto.com Exchange and Wallet: What You Need to Know

The Singapore-based platform specializes in providing users incentives.

By Mike Antolin

Aug 10, 2022 at 1:59 p.m. UTC

Aug 10, 2022

Beginner

#Learn

Beginner

#Technology

What Are Privacy Coins and Are They Legal?

Regulating privacy coins continues to be a top priority for financial authorities as they attempt to clamp down on illicit crypto trading activities.

By Robert Stevens

Aug 8, 2022 at 2:50 p.m. UTC

Aug 8, 2022

Beginner

#Technology

Beginner

Polkadot 101: Connecting the Dots for Beginners

The “layer 0” project aims to help blockchains connect and communicate with one another.

By Griffin Mcshane

Aug 5, 2022 at 6:57 p.m. UTC

Aug 5, 2022

Intermediate

#Learn

#Technology

Intermediate

Hot vs. Cold Crypto Wallets: What Are the Differences?

Whether for security or convenience, choosing the right crypto storage solution can help keep your assets safe.

By Rosie Perper

Aug 4, 2022 at 6:00 p.m. UTC

Aug 4, 2022

Beginner

#Learn

Beginner

#Technology

A Crypto Must-Know: Public vs. Private Keys

If you're just starting out in crypto, you'll hear a lot about "your keys." But there are two kinds and knowing which is which is, well, key.

By Benedict George

Aug 4, 2022 at 2:51 p.m. UTC

Aug 4, 2022

Beginner

#Learn

Beginner

#Technology

Proof-of-work vs. proof-of-stake (Brett Sayles/Pexels)

Proof-of-Work vs. Proof-of-Stake: What Is the Difference?

Proof-of-work (PoW) and proof-of-stake (PoS) are two different methods to validate cryptocurrency transactions.

By Mike Antolin

Jul 18, 2022 at 6:30 p.m. UTC

Jul 18, 2022

Beginner

#Learn

Beginner

#Technology

#Proof-of-Stake

#Proof-of-Work

What Is Near Protocol and How Does It Work?

The layer 1 competitor to Ethereum wants to be the fastest blockchain on the block.

By Benedict George

Jul 14, 2022 at 1:12 p.m. UTC

Jul 14, 2022

Beginner

#Learn

#Technology

Beginner

#Near

What Are Layer 2s and Why Are They Important?

To help with scalability and speed, blockchains such as Ethereum utilize secondary blockchains built on top of them, which are called layer 2s.

By Mason Marcobello

Jun 29, 2022 at 5:40 p.m. UTC

Jun 29, 2022

Intermediate

#Learn

#Technology

Intermediate

Metaverse questions (Minator Yang/Unsplash)

Everything You Always Wanted to Know About the Metaverse (but Were Afraid to Ask)

Everyone has questions about the metaverse these days. We rounded up some of the more popular queries to help people understand and start exploring the metaverse.

By Megan DeMatteo

May 27, 2022 at 7:30 p.m. UTC

May 27, 2022

Beginner

#Learn

Beginner

#Technology

#Metaverse-Week

#Metaverse

Mechanism (Daniele Levis Pelusi/Unsplash)

What Is a Consensus Mechanism?

Cryptocurrency and blockchain technology rely on consensus mechanisms to function and be trusted by users.

By Benedict George

May 16, 2022 at 8:57 p.m. UTC

May 16, 2022

Beginner

#Learn

Beginner

#Technology

Nodes are critical to running transactions on a blockchain. (Omar Flores)

What Is a Node?

In crypto, nodes are an integral part of the blockchain to validate transactions and keep the network safe.

By Benedict George

May 13, 2022 at 6:32 p.m. UTC

May 13, 2022

Beginner

#Learn

Beginner

#Technology

Bitcoin Improvement Proposals are like software updates to the network. (Unsplash, modified by CoinDesk)

What Are BIPs and Why Do They Matter?

Since Bitcoin doesn't have centralized leadership, Bitcoin Improvement Proposals are essential for the community to discuss and approve any upgrades.

By Krisztian Sandor

May 12, 2022 at 6:39 p.m. UTC

May 12, 2022

Intermediate

#Learn

#Technology

Intermediate

#Bitcoin

What Is a Seed Phrase?

Your seed phrase is essentially your crypto wallet recovery password if you lose access to the device where it’s initially stored on.

By Marcel Deer

Apr 21, 2022 at 3:51 p.m. UTC

Apr 21, 2022

Beginner

#Learn

#Technology

Beginner

Ledger Nano S Plus Review: Good for Beginners

The brand-new Ledger Nano S Plus is an inexpensive, Swiss Army knife-like hardware wallet that does a pretty good job of keeping crypto self-custody simple for new users.

By Krisztian Sandor

Apr 5, 2022 at 1:12 p.m. UTC

Apr 5, 2022

Intermediate

#Learn

Intermediate

#Technology

#Reviews

#Wallet

#Ledger Nano X

(MARK GARLICK/SCIENCE PHOTO LIBRA/Getty Images)

No Stupid Questions: What’s a Crypto Token, Anyway?

While you might be familiar with cryptocurrencies and how they work, do you know what they actually are?

By Benedict George

Mar 22, 2022 at 4:48 p.m. UTC

Mar 22, 2022

Beginner

#Technology

Beginner

#Learn

#Cryptocurrency

#Tokens

What Is Cryptojacking? How to Protect Yourself Against Crypto Mining Malware

While most crypto hacks involve stealing private keys belonging to a crypto wallet and emptying it, cryptojacking involves infecting a device with malware to gain control over it. Here’s how you can protect yourself.

By Krisztian Sandor

Mar 22, 2022 at 12:15 p.m. UTC

Mar 22, 2022

Beginner

#Technology

Beginner

#Learn

#mining-week-2022

#miningweek

Visualization of a quantum bit (Getty Images)

Learn

Technology

Quantum Computers vs. Crypto Mining: Separating Facts From Fiction

It has long been a concern that quantum computers could one day undermine Bitcoin and other crypto mining networks, but how realistic is that threat?

By Ollie Leech

Mar 21, 2022 at 2:51 p.m. UTC

Mar 21, 2022

TechnologyAdvancedLearnminingweekCrypto Miningmining-week-2022

Learn

Technology

Custodial Wallets vs. Non-Custodial Crypto Wallets

The term “wallet” is used to describe hardware or software that holds cryptocurrencies.

By Jackson Wood

Mar 9, 2022 at 3:50 p.m. UTC

Mar 9, 2022

Beginner

#Technology

Beginner

#Learn

Learn

Technology

An Introduction to Sidechains

Sidechains have become essential for helping pre-existing blockchains like Bitcoin to scale and become more interoperable.

By Stephan Roth

Mar 7, 2022 at 5:00 p.m. UTC

Mar 7, 2022

Intermediate

#Technology

Intermediate

#Learn

Learn

Technology

What Are Blockchain Bridges and How Do They Work?

If you want to move tokens from one blockchain to another, you’ll likely need a blockchain bridge to allow those assets to travel.

By Robert Stevens

Mar 7, 2022 at 4:56 p.m. UTC

Mar 7, 2022

Intermediate

#Technology

#Learn

Intermediate

#Cross-Chain

#MultiChain

#Wrapped Bitcoin

Learn

What Is a Block Reward?

Block rewards are the units of cryptocurrency earned by miners or stakers for their work on a blockchain.

By Benedict George

Feb 25, 2022 at 8:19 p.m. UTC

Feb 25, 2022

Beginner

#Learn

Beginner

#Technology

#Block Rewards

Learn

Technology

What Is Crypto Custody?

There is no shortage of horror stories about stolen funds, hacks and lost passwords in the crypto industry. This is where crypto custody comes into play.

By Krisztian Sandor

Feb 18, 2022 at 7:06 p.m. UTC

Feb 18, 2022

Beginner

#Technology

Beginner

#Learn

#Custody

#Custody Services