Abstract: Technologies are shown for controlling a transaction on a blockchain. A first block is created on a blockchain for a transaction involving a seller entity associated with a first key, a buyer entity associated with a second key, and an intermediary entity associated with a third key. Funds for the transaction are associated with the first block. A second block storing refund code is created and linked to the first block. The refund code is executable to refund the funds when a seller digital signature using the first key and/or an intermediary digital signature using the third key are received. A third block storing payment code is created and linked to the first block. The payment code is executable to transfer the funds when a buyer digital signature using the second key and/or an intermediary digital signature using the third key are received.

Abstract: Technologies are shown for controlling a transaction on a digitally stored blockchain by creating a contract data block for a transaction involving entities and by event code executed after receipt of digital signatures from the entities. A refund transaction may be digitally signed by entities and linked to the contract block within the blockchain. A payment transaction block may also be digitally signed by entities and linked to the contract block. Code authorized to execute by the blocks executes based on receipt of digital signature events.

Abstract: Technologies are shown for securing private information during shipping of an item storing shipping information at a blockchain address that includes a recipient geolocation address and generating a shipping label that includes a machine-readable pointer to the blockchain address. The label can be scanned to obtain the blockchain address and request the shipping information. In response to a request, the recipient geolocation address or a next intermediate shipper can be provided. The recipient can be notified to obtain authorization to release the recipient geolocation address or provide an alternative geolocation for delivery.

Abstract: Technologies are shown for securing private information during shipping of an item storing shipping information at a blockchain address that includes a recipient geolocation address and generating a shipping label that includes a machine-readable pointer to the blockchain address. The label can be scanned to obtain the blockchain address and request the shipping information. In response to a request, the recipient geolocation address or a next intermediate shipper can be provided. The recipient can be notified to obtain authorization to release the recipient geolocation address or provide an alternative geolocation for delivery.

Abstract: Technologies are shown for securing private information during shipping of an item storing shipping information at a blockchain address that includes a recipient geolocation address and generating a shipping label that includes a machine-readable pointer to the blockchain address. The label can be scanned to obtain the blockchain address and request the shipping information. In response to a request, the recipient geolocation address or a next intermediate shipper can be provided. The recipient can be notified to obtain authorization to release the recipient geolocation address or provide an alternative geolocation for delivery.

Abstract: Technologies are shown for managing stored value on a blockchain involving creating a stored value contract block on a blockchain having an identifier of a first entity and code for transferring a portion of a stored value to a designated party. Funds data is stored to the blockchain indicating the stored value committed to the stored value contract block by the first entity. Code is invoked with an identifier of a second entity to transfer a portion of the stored value to the second entity. Some examples involve an intermediary entity verifying conditions defined in the stored value contract block in order to complete transfer. Other examples involve an intermediary entity monitoring conditions in order to initiate transfer when the conditions are satisfied.

Abstract: Technologies are shown for managing stored value on a blockchain involving creating a stored value contract block on a blockchain having an identifier of a first entity and code for transferring a portion of a stored value to a designated party. Funds data is stored to the blockchain indicating the stored value committed to the stored value contract block by the first entity. Code is invoked with an identifier of a second entity to transfer a portion of the stored value to the second entity. Some examples involve an intermediary entity verifying conditions defined in the stored value contract block in order to complete transfer. Other examples involve an intermediary entity monitoring conditions in order to initiate transfer when the conditions are satisfied.

Abstract: Technologies are shown for securing private information during shipping of an item storing shipping information at a blockchain address that includes a recipient geolocation address and generating a shipping label that includes a machine-readable pointer to the blockchain address. The label can be scanned to obtain the blockchain address and request the shipping information. In response to a request, the recipient geolocation address or a next intermediate shipper can be provided. The recipient can be notified to obtain authorization to release the recipient geolocation address or provide an alternative geolocation for delivery.

Abstract: Technologies are shown for managing stored value on a blockchain involving creating a stored value contract block on a blockchain having an identifier of a first entity and code for transferring a portion of a stored value to a designated party. Funds data is stored to the blockchain indicating the stored value committed to the stored value contract block by the first entity. Code is invoked with an identifier of a second entity to transfer a portion of the stored value to the second entity. Some examples involve an intermediary entity verifying conditions defined in the stored value contract block in order to complete transfer. Other examples involve an intermediary entity monitoring conditions in order to initiate transfer when the conditions are satisfied.

Abstract: Technologies are shown for controlling a transaction on a digitally stored blockchain by creating a contract data block for a transaction involving entities and by event code executed after receipt of digital signatures from the entities. A refund transaction may be digitally signed by entities and linked to the contract block within the blockchain. A payment transaction block may also be digitally signed by entities and linked to the contract block. Code authorized to execute by the blocks executes based on receipt of digital signature events.