A new NFT marketplace that enables users to anonymously bid on NFTs has landed on zkSync Era, Polygon PoS and Ethereum.
Blockframe is designing an NFT platform that innovates proprietary features and wants to ensure that creators are being prioritized. It launched on Thursday.
In an interview with Blockworks, Mohamed El Yahawy, the president and CEO of Blockframe, said that existing barriers to entry to crypto are insurmountable.
“It’s very difficult for people to figure out how to get a MetaMask wallet, then once you have a MetaMask wallet, what are all these currencies and how do I make swaps,” El Yahawy said.
To resolve this, El Yahawy explains that Blockframe, backed by Matter Labs, will simplify this process for its users.
“At Blockframe, we’ve implemented a single sign-on, which means users can sign in with Google, Discord, Twitter, and we would automatically create a wallet for them,” he said.
Once a wallet is created, users can use the same interface to on-ramp, send and swap cryptocurrencies. User private keys will not be stored or accessible by Blockframe, El Yahawy notes.
Honest price discovery
To ensure NFT prices on Blockframe remain reliable, the team is introducing sealed bid auctions.
Rather than relying on oracles to determine NFT pricing, multiple bidders will be able to place collateralized bids anonymously to establish the value of a given digital collectible. It’s made possible by zero knowledge (ZK) technology.
Using zkTrees designed by Polymer Labs, the team has created “Bulk Semaphore,” a protocol designed to form market consensus for the price of an NFT through mass unidentified membership and signaling.
4/ Despite their advantages, the implementation of a sealed-bid auction on the #blockchain was impossible due to prohibitive gas costs — until now using ZK tech.
— Blockframe (@Blockframe_io) July 5, 2023
Using this protocol, an unlimited number of participants will be able to bid on auctions at a consistent cost. El Yahawy said the tool can also be used for anonymous voting in DAOs.
“Our partnership with Matter Labs was very strategic for their mission of scale and their contributions in creating the Block Semaphore protocol,” El Yahawy said.
Simplifying NFTs for creators
Creators looking to launch their own NFT collections can do so directly on the Blockframe user interface (UI).
That process relies on an image editor and combiner, directly accessed through Blockframe’s front end. Creators can also create editable ERC-6551 NFTs — or a smart wallet NFT that can interact with different dapps on Ethereum. These NFTs can be bulk-minted to save gas.
Blockframe is also introducing a royalty protocol, which enables creators to manage royalty revenue directly.
“The idea is that creators can come here and claim royalties for their collection, thereby tokenizing it,” El Yahawy said.
Creators can create royalty contracts for their own NFT collections, which will later represent all future cash flows. Once a royalty token is created, they can set parameters for royalty revenue. 
Source: Blockframe
At launch, NFTs without claimed royalties will have a 0% royalty rate. The exception: the top 200 collections, which impose automatic royalty contracts.
Once pricing for NFTs is standardized, Blockframe plans to ensure royalties on new collections created are applied across different marketplaces — a problem that has yet to be resolved.