Getting StartedERC-721 vs. ERC-1155: What’s the Difference Between NFT Token Standards?
ERC-721 and ERC-1155 are the two Ethereum token standards that make NFTs work. ERC-721 was proposed in January 2018 by William Entriken, Dieter Shirley, Jacob [...]
Case StudiesJack Dorsey’s First Tweet NFT: The $2.9 Million Sale That Resold for $280
In March 2021 Jack Dorsey sold his first tweet as an NFT for $2.9 million. A year later the buyer tried to resell it for $48 million and…
Marketplaces & ExchangesWhat Is NFT Floor Price, and Why Can It Be Misleading?
Floor price is the lowest listed price in an NFT collection, not a completed sale. Here is how it works, how wash trading and thin order books distort…
Wallets & SecurityWhat Is Address Poisoning, and How Do You Avoid It?
How address poisoning scams plant lookalike wallet addresses in your transaction history, the $68 million WBTC theft that resulted from one, and how to verify addresses before you…
Popular Articles
The OpenSea Insider Trading Case: How Nate Chastain Got Caught and Convicted
How a federal insider trading prosecution against a former OpenSea product manager became the first criminal…
On-Chain vs. Off-Chain NFT Metadata: Where Is Your NFT Actually Stored?
Most NFTs store only a pointer on the blockchain. Here is how on-chain, IPFS, and Arweave…
Are NFT Creator Royalties Still Enforced? What Changed on OpenSea and Blur
NFT creator royalties are no longer guaranteed on most marketplaces. Here's what EIP-2981 actually does, why…
Custodial vs. Non-Custodial Wallets: What’s the Difference and Which Do You Need?
A custodial wallet hands control of your keys to an exchange. A non-custodial wallet keeps it…
Can a Hardware Wallet Really Be Hacked? What Security Researchers Have Actually Found
Every documented hardware wallet hack, from Wallet.fail to EUCLEAK, required physical possession or a tampered device.…
What are gas fees, and why do NFT transactions cost extra?
Gas fees are payments you make to a blockchain network to process an NFT transaction. Here's…
Getting Started
View all →
ERC-721 vs. ERC-1155: What’s the Difference Between NFT Token Standards?
ERC-721 and ERC-1155 are the two Ethereum token standards that make NFTs work. ERC-721 was proposed…
On-Chain vs. Off-Chain NFT Metadata: Where Is Your NFT Actually Stored?
Most NFTs store only a pointer on the blockchain. Here is how on-chain, IPFS, and Arweave…
What are gas fees, and why do NFT transactions cost extra?
Gas fees are payments you make to a blockchain network to process an NFT transaction. Here's…
Wallets & Security
View all →
What Is Address Poisoning, and How Do You Avoid It?
How address poisoning scams plant lookalike wallet addresses in your transaction history, the $68 million WBTC…
Custodial vs. Non-Custodial Wallets: What’s the Difference and Which Do You Need?
A custodial wallet hands control of your keys to an exchange. A non-custodial wallet keeps it…
Can a Hardware Wallet Really Be Hacked? What Security Researchers Have Actually Found
Every documented hardware wallet hack, from Wallet.fail to EUCLEAK, required physical possession or a tampered device.…
Marketplaces & Exchanges
View all →
What Is NFT Floor Price, and Why Can It Be Misleading?
Floor price is the lowest listed price in an NFT collection, not a completed sale. Here…
Are NFT Creator Royalties Still Enforced? What Changed on OpenSea and Blur
NFT creator royalties are no longer guaranteed on most marketplaces. Here's what EIP-2981 actually does, why…
How NFT Offers Work: Item, Collection and Trait Offers Explained
NFT offers let buyers name their price. Here is how item, collection and trait offers work,…
Case Studies
View all →
Jack Dorsey’s First Tweet NFT: The $2.9 Million Sale That Resold for $280
In March 2021 Jack Dorsey sold his first tweet as an NFT for $2.9 million. A…
The OpenSea Insider Trading Case: How Nate Chastain Got Caught and Convicted
How a federal insider trading prosecution against a former OpenSea product manager became the first criminal…
The Ronin Bridge Hack: How Axie Infinity Lost $625 Million
In March 2022, attackers drained $625 million from the Ronin bridge behind Axie Infinity. Here is…
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