Optimistic Rollups are Layer-2 scaling solutions for Ethereum that allow for faster and cheaper transactions by processing them off-chain and then posting transaction data back to the Ethereum mainnet.
OpenSea is the largest and most well-known peer-to-peer marketplace for non-fungible tokens (NFTs).
One-Cancels-the-Other (OCO) is a type of order that combines two orders: one is a limit order, and the other is a stop order.
On-chain refers to any transaction or data that is directly recorded and validated on the blockchain.
Off-chain refers to transactions or data that take place outside the blockchain network.
In the context of blockchain, a nonce is a number that miners adjust to create a hash that meets the difficulty requirement of the network
Non-custodial refers to a type of cryptocurrency wallet or service where users retain full control over their private keys and funds.
A node is any device (computer, server, or phone) connected to a blockchain network that helps maintain the network by validating, storing, and broadcasting transactions.
Network fees, also known as gas fees, are payments made by users to compensate miners or validators for processing and verifying transactions on a blockchain network.
Network congestion occurs when a blockchain network becomes overloaded with transactions, leading to slow processing times and higher transaction fees.
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