Blockframe

Blockframe is an NFT marketplace and creator tool built around privacy primitives: it prices NFTs through sealed-bid auctions, where bid amounts are visible but bidder identity is hidden and the sale settles at the top bid. NFT pricing usually leans on listings and floors that a few sellers can move, while open bidding exposes strategy; sealed bids separate the two and let price come from many parties rather than one quote.

The in-house bulk signalling protocol aggregates bids from a large anonymous membership into a single proof, so participation is not capped by cost, and the same primitive serves anonymous voting and on-chain governance. On the creation side an image editor and compositor support batch minting, with edits kept as proofs, which is what makes editable NFTs possible. Royalty income splits into transferable revenue tokens, and creators set their own share and claim it. The market runs on zkSync Era, Ethereum and Polygon, and the team also works as a core development team on decentralising the zkSync network.