An ecosystem is configured to facilitate digital exchange of digital assets in a digital asset marketplace. The ecosystem includes one or more of a plurality of participant systems selected from a list of participant systems including asset user systems, asset holder systems, and asset mining systems. The ecosystem operates on a computer-executable asset wrapper that is associated with the digital asset and that is configured in the form of a multi-layered structure. The ecosystem also includes a codec that is associated with the asset wrapper and configured as a computer executable file. The codec is executed responsive to a request for an exchange on the marketplace that is associated with the digital asset. The ecosystem further includes a blockchain device to execute a blockchain smart contract for the asset exchange. The blockchain smart contract is executed against a set of right tokens characterizing a specific cryptocurrency value.

Systems and methods for managing a set of electronic assets from a single location are disclosed. The method includes providing a portal with a network security access control. The method includes determining that login credentials input to the access control are associated with a set of electronic assets corresponding to a plurality of third-party computing systems with application programming interface (API) gateways configured to accept API calls directed to changes in functionality of the electronic assets. The method includes presenting, via the portal, a virtual icon to identify a coordinated action with respect to the set of electronic assets and, in response to a selection of the virtual icon, executing a set of API calls that include an asset-specific API call to each third-party computing system in the plurality of third-party computing systems to implement the coordinated action on all electronic assets in the set of electronic assets.

Methods, systems, and apparatus for risk mitigation for a cryptoasset custodial system include transmitting an endorsement request for a cryptoasset transaction to a user device configured to cause the user device to prompt a user to endorse the cryptoasset transaction. Multiple data points are collected from mobile devices associated with the user. The data points indicate an identity of the user. A cryptographic endorsement of the cryptoasset transaction is received from the user device. A graphical visualization including a risk metric is generated based on the data points. The risk metric indicates a risk of accepting the cryptographic endorsement from the user device. Generating the graphical visualization includes determining whether the plurality of data points matches expected values.

Described herein are various methods of sharing data across multiple computers. The method of sharing data permits the pruning of data from the shared data.

A method and system and computer program product for subscribing to action plans including a processing device for receiving an action plan transaction message having one or more data fields from an analyst node in a blockchain network and generating an action plan transaction in a blockchain including the one or more data fields of the action plan transaction message and a newly generated plan identification. The processing device may transmit an action plan notice to the blockchain network alerting the nodes of the blockchain network of the action plan transaction. The processing device may receive one or more client bids for the action plan transaction, determine a winning client bid of the one or more client bids, generate a winning bid transaction in the blockchain and transmit a winning bid notification to the client node of the winning client bid.

Methods, apparatus and systems for verifying coin ownership are disclosed. In an embodiment, a coin service provider identifies an online session initiated by a wallet application and a next coin to verify, receives information associated with the next coin from a wallet application, determines that ownership of the next coin was transferred out of the wallet application since the last time coins in the wallet application were verified and that ownership of the next coin has not been updated in a coin data store. The coin service provider then transmits a prompt to the user device for the user to confirm that a transaction involving the next coin completed successfully, receives a confirmation message from the user device, confirms that the next coin was received by a recipient, and next updates ownership information of the next coin in the coin data store.

A package management system to initiate a transaction in a blockchain system. The transaction comprises an indication of the signature for the software package and is to be stored in a blockchain. The package management system distributes the software package to a computing device with an indication of a location of the signature in the blockchain.

A content delivery platform may deliver program content segments and advertising content segments to multiple user devices. The content delivery platform may deliver a program content segment to a primary user device of a user for presentation on the primary user device. The content delivery platform may retrieve an advertising content segment from an advertising content store for presentation. The advertising content segment is provided by an advertiser that is sponsoring the presentation of the program content segment on the primary user device. The content delivery platform may send the advertising content segment to a secondary user device of the user for presentation at the secondary user device.

To manage property records using a multi-layered hybrid distributed ledger architecture, identification information for a particular property is obtained and transmitted to at least one participant in a public distributed ledger network for a public distributed ledger layer. Ownership information for the same particular property is obtained and transmitted to at least one participant in a federated distributed ledger network for a federated distributed ledger layer. Transaction-related documents for the same particular property are obtained and transmitted to at least one participant in a private distributed ledger network for a private distributed ledger. The distributed ledger layers are different layers of a property distributed ledger each having a separate set of consensus rules for appending distributed ledger data to the respective layer. This allows for the immutable preservation of royalty terms and conditions for a property or asset using the distributed ledger.

A peer-to-peer terminal includes a bid data obtaining unit, a bid data transmitter, a contract result calculator, a contract result transmitter, a contract result receiver, and a contract result selector. The bid data obtaining unit obtains bid data. The bid data transmitter transmits the bid data to another peer-to-peer terminal. The contract result calculator calculates a contract result from a bid data set obtained by the bid data obtaining unit and including the bid data. The contract result transmitter transmits the contract result to the other peer-to-peer terminal. The contract result receiver receives, from the other peer-to-peer terminal, another contract result calculated by the other peer-to-peer terminal. The contract result selector selects one contract result from among the contract result and the other contract result.