Abstract: Techniques are described for using a decentralized group of authentication server nodes to prevent singular dependence upon any given online platform for authenticating avatars. For each epoch duration of time, a consensus protocol operating on a blockchain is used to elect an authentication server node. The elected node can then act as an authentication server on behalf of the online platform for that fixed epoch duration of time. Within this epoch of time, a client device (e.g., used by a user to access an online platform) performs a periodic heartbeat authentication with the elected authentication server node using an efficient authentication protocol that relies on a keyed-hashing mechanism. A client device can use the described system and authentication methods concurrently with multiple different online platforms (e.g., separate metaverses or other virtual worlds).

Abstract: Techniques are described for providing a computer-implemented hybrid asset management platform and related system components used to manage transactions involving “hybrid” assets comprising both digital and physical components. The hybrid asset management platform provides continual synchronization between digital asset certificates of legal ownership (e.g., data structures managed off-chain in one or more private data stores) with corresponding asset non-fungible tokens (NFTs) that are tradeable on a blockchain or other type of decentralized ledger. Among other benefits, the described hybrid asset management platform provides for efficient and secure transactions involving possibly several different types of users, thereby improving the ability for metaverses, gaming platforms, virtual and real-world marketplaces, and other entities to facilitate transactions involving hybrid assets.

Abstract: Techniques are described for a system architecture, protocols, tokens, and other data structures used to manage the consistency of the state of digital assets and their ownership across one or more metaverse realms (e.g., interactive digital worlds). A digital asset in the form of a token (e.g., a token stored on a decentralized ledger) can be bound to real world physical assets (including physical objects of value) and at the same time can also be bound to a visual symbol or a pictograph (e.g., an avatar) in one or more metaverse realms. In some examples, it is desirable for any changes to the state or ownership of the asset in one of the three realms (that is, in the physical real-world, in the form of a token on a decentralized ledger, or as a digital representation within a metaverse) to also be reflected in the other two realms.

Abstract: Techniques for enabling the creation of a digital asset representation of physical goods (e.g., luxury items) produced in limited quantities or heirloom-goods associated with restricted ownership rules. Anti-counterfeiting mechanisms are proposed for both classes of goods. The provenance of both classes of goods is traced using cryptography and decentralized ledger technology. For example, mechanisms to restrict ownership of heirloom-goods are proposed based on the combination of the DNA biological fingerprint of the patron who originated the goods and smart contract technology. The goods can be represented as digital tokens on the blockchain, binding manufacturing evidence to the token. For heirloom-goods that have restricted ownership rules, persons seeking to acquire the good via the digital token and smart contract are required to prove that they satisfy the entitlement rules based on a biological relationship to the patron.

Abstract: Techniques for enabling the creation of a digital asset representation of physical goods (e.g., luxury items) produced in limited quantities or heirloom-goods associated with restricted ownership rules. Anti-counterfeiting mechanisms are proposed for both classes of goods. The provenance of both classes of goods is traced using cryptography and decentralized ledger technology. For example, mechanisms to restrict ownership of heirloom-goods are proposed based on the combination of the DNA biological fingerprint of the patron who originated the goods and smart contract technology. The goods can be represented as digital tokens on the blockchain, binding manufacturing evidence to the token. For heirloom-goods that have restricted ownership rules, persons seeking to acquire the good via the digital token and smart contract are required to prove that they satisfy the entitlement rules based on a biological relationship to the patron.

Abstract: Techniques are described for using a decentralized group of authentication server nodes to prevent singular dependence upon any given online platform for authenticating avatars. For each epoch duration of time, a consensus protocol operating on a blockchain is used to elect an authentication server node. The elected node can then act as an authentication server on behalf of the online platform for that fixed epoch duration of time. Within this epoch of time, a client device (e.g., used by a user to access an online platform) performs a periodic heartbeat authentication with the elected authentication server node using an efficient authentication protocol that relies on a keyed-hashing mechanism. A client device can use the described system and authentication methods concurrently with multiple different online platforms (e.g., separate metaverses or other virtual worlds).