Nchain Licensing Ag

Chloe Ceren Tartan

Craig Steven Wright

Jack Owen Davies

Owen Vaughan

Wei Zhang

Jad Wahab

Bassem Ammar

Alexander Tennyson Mackay

Alexander MacKay

Antoaneta Serguieva

Michaella Pettit

Alessio Pagani

Katharine Molloy

A method of storing data on a blockchain, such as the Bitcoin blockchain, is disclosed. The method comprises generating a plurality of blockchain transactions, wherein a plurality of the blockchain transactions each store therein a respective part (<Content chunk 1>, <Content chunk 2>) of first data to be stored on the blockchain and second data (<Metanet Flag>) indicating that the parts of the first data are related to each other.

Computer implemented system and method for storing data on a blockchain

A method of storing certified data on a blockchain is disclosed. The method comprises generating a first blockchain transaction (Tx) having a first output (Output 3) containing a first public key of a first private/public key pair, comprising a first private key and a first public key, of a cryptography system, first data related to the first public key, and a first digital signature applied, by means of a second private key of a second private/public key pair, comprising a second private key and a second public key, of a cryptography system, to the first data and to the first public key. The first blockchain transaction is broadcast to the blockchain.

Computer implemented method and system for storing certified data on a blockchain

A method of validating transactions for recordal in a blockchain comprises receiving one or more transactions at a node of a blockchain network. For each received transaction a protocol for validating the transaction is applied. The protocol is configured to allow a termination opcode to be included in an output script of the transaction. The termination opcode is configured to, upon being executed by the node, a) terminate execution of the output script, and b) not to invalidate the transaction based only on the inclusion of the termination opcode in the output script. The protocol is also configured to disallow any instance of the termination opcode from being included in an input script of the transaction, said disallowing comprising the node at least invalidating the transaction if any instance of the termination opcode is included in the input script.

Protocol for validating blockchain transactions

A system comprising a layered network, wherein the layered network comprises a plurality of LN nodes arranged in an ordered set of layers, the ordered set of layers comprising, in order, a core layer comprising a plurality of master nodes each connected to one or more blockchain nodes of a blockchain network, one or more intermediate layers comprising a respective set of intermediate nodes, and a device layer comprising a set of end devices, wherein: each master node is configured to control a respective subset of intermediate nodes; a first master node is configured to control a first subset of intermediate nodes; a second master node is configured to control a second subset of intermediate nodes; and each intermediate node is configured to control a respective subset of end devices.

Multi-layer communication network

A method of executing transactions of a blockchain network. A first transaction comprises at least a first output comprising a first locking script of a stack-based scripting language, the first locking script comprising a portion of the first locking script to be executed before a first instance of an opcode is executed. A second transaction comprises a first unlocking script that references the first output in the first transaction. Upon executing the first instance of the opcode, execution of the first locking script is terminated whilst not invalidating the first transaction. A first data element is read from at least one stack, wherein the first data element is generated during execution of the first unlocking script and the portion of the first locking script. The first data element as read from the at least one stack is supplied to an off-chain function, wherein the function is configured to generate a result based on at least said first data element.

Using blockchain transactions to provide off-chain functionality

A computer-implemented method of deriving keys of a hierarchical key structure, wherein the method is performed by a first party and comprises: generating a target index of a target child key, wherein the target index is generated based on a first result of inputting at least a target message to a first hash function; and deriving the target child key of a level in a hierarchy of a key structure based on a) a parent key of a preceding level in the hierarchy, and b) a second result of inputting at least i) the parent key, and ii) the target index, to a second hash function.

Key derivation method

The disclosure provides improved methods and systems for processing, storing, sharing, retrieving, writing, and accessing data (content) on a blockchain. In particular, improved efficiency and also enhanced access control permissions are provided. An embodiment of the present disclosure comprises the step of processing at least one blockchain transaction (Tx) comprising: a protocol flag; a discretionary public key (DPK); and a discretionary transaction ID (DTxID). These are discretionary in the sense that they are not required as part of the underlying blockchain protocol but in accordance with the present disclosure. This combination of features enables portions of data to be identified, retrieved, and shared on a blockchain, and also to be linked/associated with one another when provided in a plurality of transactions. It enables a graph or tree-like structure to be constructed, which reflects the hierarchical relationships between portions of data, facilitating their processing, searching, and sharing.

Systems and methods for efficient and secure processing, accessing and transmission of data via a blockchain network

A method of storing data on a blockchain, such as the bitcoin blockchain, is disclosed. The method comprises generating a blockchain transaction having at least one first input and/or at least one first output containing first data (<Content 1>) to be stored on the blockchain, and at least one second input and/or at least one second output containing second data (<Attribute 1>,<Attribute 2>) representing at least one attribute of the first data. At least one second input and/or at least one second output is separate from the or each first input and/or first output.

The invention provides improved methods and systems for storing, sharing retrieving, writing and accessing data (content) on a blockchain. The invention may form part of a protocol for storing, searching and accessing the data. An embodiment of the invention comprises the step of processing at least one blockchain transaction (Tx) comprising: a protocol flag; a discretionary public key (DPK); and a discretionary transaction ID (DTx ID). These are discretionary in the sense that they are not required as part of the underlying blockchain protocol but in accordance with the present invention. This combination of features enables portions of data to be identified, retrieved and shared on a blockchain, and also to be linked/associated with one another when provided in a plurality of transactions. It enables a graph or tree-like structure to be constructed, which reflects the hierarchical relationships between portions of data, facilitating their processing, searching and sharing.

The invention provides improved methods and corresponding systems for the sharing, storage, creation and accessing of data stored on a blockchain eg the Bitcoin blockchain. It may form part of a protocol for searching the blockchain for content/data. A method in accordance with the invention may be used for associating or linking data stored within (separate/different) blockchain transactions to enable the identification, retrieval and/or sharing of data stored therein. Additionally, or alternatively, it facilitates identification of transactions (TX) in a blockchain which store content/data that needs to be shared, transmitted, stored and/or accessed by a user. Such a method comprises the step of mapping a mnemonic to: 1) a public key (PK) associated with the transaction (TX); and 2) the transaction ID (TX) of the transaction (TX).

The disclosure provides improved methods and systems for processing, storing, sharing, retrieving, writing and accessing data (content) on a blockchain e.g. Bitcoin. The invention may form part of a protocol for storing, searching and accessing the data. In particular, improved efficiency and also enhanced access control permissions are provided. An embodiment of the disclosure comprises the step of processing at least one blockchain transaction (Tx) comprising: a protocol flag; a discretionary public key (DPK); and a discretionary transaction ID (DTxID). These are discretionary in the sense that they are not required as part of the underlying blockchain protocol but in accordance with the present invention. This combination of features enables portions of data to be identified, retrieved and shared on a blockchain, and also to be linked/associated with one another when provided in a plurality of transactions. It enables a graph or tree-like structure to be constructed, which reflects the hierarchical relationships between portions of data, facilitating their processing, searching and sharing.

The invention provides a system for searching a blockchain (e.g. Bitcoin) for data/content stored in one or more blockchain transactions, and accessing that data/content. It may be used in conjunction with a protocol for searching the blockchain. An embodiment of the invention can be arranged to enable a user to search for, access, view, write and/or retrieve a portion of data provided in at least one blockchain transaction (Tx), and also arranged to identify the at least one transaction (Tx) based on a transaction index (TX) comprising a transaction ID and a public key associated with the transaction (Tx). The system may comprise a search facility which is either provided within the blockchain search system; or arranged to interface and/or communicate with the blockchain search system. It may also comprise at least one cryptocurrency wallet.

Computer implemented systems and methods for storing, retrieving and communication data via a peer-to-peer network

In one aspect, the present disclosure proposes methods, devices and systems for partitioning a request associated with a digital asset into an arbitrary number of transactions. The partitioning is based on knowing or obtaining a maximum number of outputs allowed for a request and an arbitrarily selection of a possible integer partition of an arbitrarily selected integer. The randomly selected integer partition then forms the basis for determining the number of transactions and UTXOs, so that a digital asset value can be arbitrarily split across the determined UTXOs before being stored on a public blockchain. In another aspect, the present disclosure proposes methods, devices and systems for arbitrarily distributing a digital asset value associated with a request across an arbitrarily determined number of transactions. This is based on an arbitrarily selected number of transactions, and a maximum number of outputs allowed for each request. In another respect, the present disclosure proposes methods, devices and systems for generating or determining one or more public addresses associated with a given entity for use in blockchain transactions for the given entity, so that such addresses may be securely and correctly associated with the given entity, while maintaining anonymity of the entity's identity.

Partitioning a request into transactions for a blockchain

A method of executing a transaction of a blockchain. The transaction comprises at least one output comprising a locking script, and the locking script comprises an instance of a first opcode and one or more instances of a second opcode. Each instance of the second opcode separates portions of the locking script. Upon calling the instance of the first opcode, a first data element is read from at least one stack, the first data element being generated during execution of the locking script with an unlocking script of a different transaction. A first part of the locking script that follows an instance of the second opcode corresponding to the first data element is output.

In-script functions within a blockchain transaction

A computer-implemented method for controlling one or more devices of a first network. The first network comprises a set of bridging nodes and a set of devices controllable by one or more of the set of bridging nodes. Each bridging node is also a node of a blockchain network, and each device has a respective device identifier. The method is performed by a first one of the bridging nodes and comprises generating a first blockchain transaction. The first blockchain transaction comprises a first input comprising a signature linked to a first public key of the first node, and a first output comprising command data. The command data comprises a respective identifier of a first one of the devices controlled by a second one of the bridging nodes, and a command message for controlling the first device.

Growing community of inventors

London, United Kingdom

Chloe Ceren Tartan