Blur is a decentralized privacy protocol that allows users to transact on the Ethereum blockchain privately and securely. The protocol uses zero-knowledge proofs (ZKPs) to obfuscate transaction details, such as the sender, receiver, and amount, while still allowing the transactions to be verified by the network.

The purpose of Blur is to enhance the privacy of Ethereum transactions, which are otherwise publicly visible on the blockchain. This can be important for a number of reasons, including protecting sensitive financial or personal information, avoiding surveillance or censorship, and enabling more confidential business transactions.

Blur operates as a decentralized application (DApp) on the Ethereum network, meaning that it is built on top of the Ethereum blockchain and can be accessed through a web browser or other Ethereum-compatible application. The protocol uses the BLUR token as its native cryptocurrency, which is used for transaction fees, governance, and other functions within the Blur ecosystem.

OpenSea is a leading NFT (non-fungible token) marketplace that allows users to buy, sell, and discover digital assets, including unique collectibles, art, gaming items, and more. The platform operates as a decentralized application (DApp) on the Ethereum blockchain, meaning that it is built on top of the Ethereum network and allows users to transact directly with each other without the need for intermediaries.

OpenSea has become one of the most popular NFT marketplaces, with a wide variety of digital assets available for sale and a user-friendly interface that makes it easy to browse, search, and buy NFTs. The platform also offers a range of tools and services for creators, including the ability to mint and sell their own NFTs, set royalties for secondary sales, and track their sales and analytics.

OpenSea has attracted a large and growing community of NFT collectors, enthusiasts, and creators, and has facilitated some of the most high-profile NFT sales to date, including a digital artwork by the artist Beeple that sold for $69 million in March 2021.

Yes, royalties for NFTs can be important, especially for creators who want to earn ongoing revenue from their digital creations. Royalties are a percentage of the resale price of an NFT that the original creator receives each time the NFT is sold on a secondary market.

In traditional art markets, artists are often not compensated for the increased value of their work when it is resold, as they typically sell their work to a collector or gallery for a one-time fee. However, with NFTs, creators can set royalties for their work, ensuring that they receive a percentage of the resale value each time the NFT is sold on a secondary market. This allows creators to continue to benefit financially from the success of their work, even as it changes hands between collectors over time.

Royalties can also be an important way to support the ongoing development and maintenance of NFT marketplaces and platforms, as a percentage of each sale can be allocated to support the platform or other related initiatives.

In addition to providing ongoing revenue for creators, royalties can also help to establish more equitable marketplaces for NFTs. This is because they incentivize collectors to support creators by purchasing their work, knowing that a portion of the resale value will go back to the original creator. This can help to support a healthy ecosystem for NFTs and provide a more sustainable model for creators to monetize their work over time.

NFT royalties are typically set by the creator when they mint the NFT and can range from a few percent to as high as 10-20% of the resale value. The royalty percentage is usually encoded into the NFT itself and automatically paid out to the creator each time the NFT is resold on a secondary market.

Overall, royalties can provide an important source of ongoing revenue for creators and help to establish more sustainable and equitable marketplaces for digital art and other NFTs.