Abstract: A blockchain anonymizing system and method is provided for side-channel-secure blockchain anonymity using the Invisible Internet Project (I2P). Instead of merely preventing the revelation of a user's IP address, embodiments are directed to inhibiting any correlation of the user's transactions over time.

Abstract: A Quorum network comprising an access controlled multi-tenant network is provided that is configured to enable access control and state isolation in a multi-tenancy Ethereum-based distributed ledger system. The access-controlled network includes one or more authenticating servers (also referred to as access controls) for providing permission control to the nodes in the network. In a standard multi-tenant network, each user of an entity (also referred to as an organization) is limited to only transacting with (also referred to as accessing) their own authorized resources. The access-controlled network utilizes an access controller to provide a singular truth for a set of managed nodes through a trusted entity (such as a Network Authorization Server).

Abstract: A blockchain platform is provided for creating original non-fungible tokens (NFTs) and prints of the original NFTs. The platform creates a market for purchasing and selling prints of the original NFTs. The purchase price and the sale price for a print is determined based on a bonding curve and a total supply of the prints of the original NFT. The platform may also generate content (e.g., artwork and/or music) associated with the original NFTs. The content may be generated from logic that is stored on the blockchain.

Abstract: Systems and methods for anonymous cryptocurrency transactions are disclosed. A method may include: receiving, from the electronic device associated with a sender of a cryptocurrency transaction, a zero-knowledge statement comprising a shuffled and anonymized list of participants comprising the sender, a receiver of the cryptocurrency transaction, and a plurality of decoy participants, a transfer amount, and a remaining balance, and a secret witness, wherein each participant is associated with an index; generating one-out-of-many proofs for the sender and the receiver based on their associated indices; generating a Basic Zether proof for the transfer amount and the remaining balance; conducting many-out-of-many proofs with parameters chosen for an anonymous payment setting; and constructing a zero-knowledge proof for the zero-knowledge statement.

Abstract: Systems and methods for privacy in distributed ledger transactions are disclosed. In one embodiment, in an information processing apparatus comprising at least one computer processor for a first node in a computer network comprising a plurality of nodes, a method for generating a key directory in a network comprising a plurality of nodes may include: (1) advertising a public key for a first node to the other nodes; (2) receiving public key information from each of the plurality of nodes; and (3) generating a public key directory that associates each node in the computer network with its public key.