Abstract: A method, apparatus and computer program, the method comprising: selecting a transaction entity for a mobile entity wherein a digital attribute account is associated with the mobile entity; and assigning one or more items of digital attributes from the digital attribute account associated with the mobile entity to the selected transaction entity such that the assigned items can only be used for transactions between the mobile entity and the selected transaction entity.

Abstract: According to an example aspect of the present invention, there is provided a method, comprising: receiving an input ordered set of transactions after a genesis block or a preceding compressed block in a chain of blocks, generating a compressed block on the basis of the input ordered set of transactions, wherein processing of the compressed block results to an equivalent final state as processing of the input ordered set of transactions, and providing the compressed block to a distributed network for establishing a new chain epoch and replacing a set of uncompressed blocks associated with the input ordered set of transactions.

Abstract: According to an example aspect of the present invention, there is provided a method, comprising: detecting, by a first wireless device, a locally accessible second wireless device, sending a request to the second device for network access via the second wireless device, setting network access terms with the second wireless device for temporary provision of network access for the first wireless device via the second wireless device, exchanging a set of bilateral transactions with the second wireless device for the network access, each of the transactions being associated with a network access resource provided by the second wireless device for the first wireless device according to the set access terms, and causing provision of a public transaction on the basis of the set of bilateral transactions to be distributed within a blockchain network.

Abstract: A computer-implemented method for secure de-centralized domain name system, the method comprising: recording a domain registration transaction to a blockchain, the domain registration transaction comprising a domain name, a domain primary key corresponding to a domain public key and domain certificate information for a server node; recording a domain security transaction, comprising the domain public key, to the blockchain to generate a domain name record comprising the domain name, an associated IP address, the domain public key and the domain certificate information, wherein the domain security transaction being signed using the domain primary key; transmitting, by a client node, a domain name request to a domain name node; receiving, by the client node, a domain name response from the domain name node, the domain name response comprising the domain public key, the domain certificate information and the associated IP address retrieved from the domain name record of the blockchain; and initiating a secure co

Abstract: According to an example aspect of the present invention, there is provided a method, comprising: receiving a cryptographic proof of use indicative of decoding of a first media content element by a user device (400), receiving a cryptographic first expected proof of use value (410), and controlling access to an encrypted second media content element associated with the first media content element on the basis of verification of the received cryptographic proof of use and the first expected proof of use value (420).

Abstract: According to an example aspect of the present invention, there is provided a method, comprising: receiving a request for personal health data of a user, obtaining rules for authorizing access to the personal health data on the basis of a smart contract in a distributed network, requesting authorization for accessing the personal health data from one or more authorizers specified by the smart contract, providing received at least one authorization to the distributed network for verifying compliance to the smart contract rules and validating a smart contract transaction authorizing provision of the personal health data.

Abstract: According to an example aspect of the present invention, there is provided a method, comprising: defining a delivery identifier for delivery of goods from a sender to a receiver, defining a relay for the delivery of goods, selecting one or more sender couriers to send the goods to the relay and/or selecting one or more receiver couriers to receive the goods from the relay, generating for the goods delivery a smart contract comprising cryptographic tokens for confirming delivery, wherein the smart contract is a computerized transaction protocol and is configured to validate delivery of the goods on the basis of tokens from the couriers, providing the smart contract for the goods delivery to the distributed network, and providing the cryptographic tokens, the delivery identifier and an identifier of the relay to the selected one or more couriers.

Abstract: According to an example aspect of the present invention, there is provided a method, comprising: receiving user information provided by a user equipment, associating spatiotemporal information with the user information on the basis of location of at least one wireless access network device in communication with the user equipment, generating a proof of location indication transaction associated with the user information on the basis of the spatiotemporal information, and providing the proof of location indication transaction to a distributed ledger.

Abstract: According to an example aspect of the present invention, there is provided a method, comprising: generating, based on source media content, a media vector comprising one or more privacy-controlled components, wherein each component is a partially modified version of the source media content such that at least some different privacy-controlled visual media content parts of the source media content are removed, substituted or hidden at different privacy-controlled components, and assigning for each of the components privacy control information.

Abstract: Selection of a network routing topology in a distributed network comprising multiple nodes is described. At respective ones of the multiple nodes, candidate transactions are received representing a set of candidate network routing topologies, a database is supplemented with the candidate transaction data, and respective voting transactions are received from each of the other nodes, each representing an indication of a preferred candidate network routing topology and a network routing topology is selected from the set of candidate network routing topologies on the basis of the voting transactions.

Abstract: According to an example aspect of the present invention, there is provided a method, comprising: receiving, by a positioning information receiver, an authentication information element from a positioning information source, requesting verification of authenticity of the positioning information source on the basis of the authentication information element and a distributed ledger of verified positioning information sources, and establishing a cryptographic session with the positioning information source for receiving positioning information in response to receiving an indication of verification of authenticity of the positioning information source.

Abstract: A technique, comprising: controlling an operation of a first vehicle at least partly on the basis of information about one or more sensor outputs of one or more other vehicles recovered from one or more radio transmissions each verifiable as a radio transmission by a vehicle included in a record of certified vehicles.

Abstract: A method, apparatus and computer program, the method comprising: selecting a transaction entity for a mobile entity wherein a digital attribute account is associated with the mobile entity; and assigning one or more items of digital attributes from the digital attribute account associated with the mobile entity to the selected transaction entity such that the assigned items can only be used for transactions between the mobile entity and the selected transaction entity.

Abstract: According to an example aspect of the present invention, there is provided a method, comprising: receiving an input ordered set of transactions after a genesis block or a preceding compressed block in a chain of blocks, generating a compressed block on the basis of the input ordered set of transactions, wherein processing of the compressed block results to an equivalent final state as processing of the input ordered set of transactions, and providing the compressed block to a distributed network for establishing a new chain epoch and replacing a set of uncompressed blocks associated with the input ordered set of transactions.

Abstract: A computer-implemented method for secure de-centralized domain name system, the method comprising: recording a domain registration transaction to a blockchain, the domain registration transaction comprising a domain name, a domain primary key corresponding to a domain public key and domain certificate information for a server node; recording a domain security transaction, comprising the domain public key, to the blockchain to generate a domain name record comprising the domain name, an associated IP address, the domain public key and the domain certificate information, wherein the domain security transaction being signed using the domain primary key; transmitting, by a client node, a domain name request to a domain name node; receiving, by the client node, a domain name response from the domain name node, the domain name response comprising the domain public key, the domain certificate information and the associated IP address retrieved from the domain name record of the blockchain; and initiating a secure co

Abstract: According to an example aspect of the present invention, there is provided a method, comprising: detecting, by a first wireless device, a locally accessible second wireless device, sending a request to the second device for network access via the second wireless device, setting network access terms with the second wireless device for temporary provision of network access for the first wireless device via the second wireless device, exchanging a set of bilateral transactions with the second wireless device for the network access, each of the transactions being associated with a network access resource provided by the second wireless device for the first wireless device according to the set access terms, and causing provision of a public transaction on the basis of the set of bilateral transactions to be distributed within a blockchain network.

Abstract: A technique, comprising: receiving at a node of a distributed ledger network one or more vehicle route requests shared among nodes of the distributed ledger network; computing one or more route solutions for said one or more vehicle route requests; and sharing said one or more route solutions with other nodes of said distributed ledger network, for establishing a consensus route solution for one or more of said one or more vehicle route requests.