New pending patent applications are published on Thursdays by the USPTO. This week's Spotlight Applications continue the theme of blockchain (distributed ledger, smart contracts) and digital rights management broadly construed. Assigned to Proclus Technologies (CN), the first application discloses techniques for securing a blockchain with proof-of-transactions (see also 20190043024 and 20190044734). Assigned to nChain Holdings (AG), the second application discloses tokenisation techniques for implementing exchanges on a blockchain.
20190044725, "Method and system for securing a blockchain with proof-of-transactions," assigned to Proclus Technologies Limited (CN)
Novel tools and techniques are provided for implementing blockchain transactions, and, more particularly, to methods, systems, and apparatuses for securing a blockchain with proof-of-transactions. In various embodiments, the blockchain system utilizes a proof-of-transactions approach that is based on a multi-player voting system and that is not susceptible to a free-rider problem that affects many other cryptocurrencies. The proof-of-transactions approach allows the cryptocurrency network to divide revenue between the nodes in the peer-to-peer network that provides bandwidth and connectivity and a set of other nodes that solve computational puzzles that safeguard the security of the blockchain system.
20190043048, "Tokenisation method and system for implementing exchanges on a blockchain," assigned to nChain Holdings Limited (AG)
In accordance with the invention there may be provided a method and corresponding system for controlling the performance of a process conducted via a blockchain. The blockchain may or may not be the Bitcoin blockchain. The process may be a lending process. Advantageously, the invention provides a mechanism which enables the ultimate owner of a property or other asset to borrow funds against that asset, and sets out how this can be achieved in a manner which does not require the return to the investor(s) to be determined through the payment of interest. This makes it compliant with non-interest forms of lending. The invention provides a blockchain-implemented method (and corresponding system) of embedding data in a blockchain transaction (Tx). The method comprises the steps of deriving a public-key-private key cryptographic pair for the data; deriving a signature for the data using the public key-private key cryptographic pair; codifying the data to generate codified metadata for the data. The codified metadata is transmitted to the blockchain in a transaction. A signature is received and a script from at least one user to enable access to the embedded data. The script comprises a public key of a signatory. The metadata comprises a hash of the data and a pointer to the data so that it can be located. The hash is used as a primary key in a lookup table where the data is stored.