Patent US9704143

receiving, from a source computing node in a network, one or more electronic transaction messages, wherein the one or more electronic transaction messages include at least transaction information and a digital signature of the source computing node, wherein the transaction information includes at least: a recipient electronic address of a recipient computing node; a cryptographic currency representing a security and a first position, the first position representative of a first quantity of the security; and an ownership history of the cryptographic currency;

internally verifying an authenticity of the one or more electronic transaction messages based on the digital signature;

internally verifying the source computing node as owner of the cryptographic currency based on the ownership history using a ledger;

receiving electronic verification messages from a plurality of other computing nodes in the network, the electronic verification messages including information providing external verification of the source computing node as the owner of the cryptographic currency;

recording, in the ledger, a change in the ownership history from the source computing node to the recipient computing node in response to the ownership history being verified internally and by the other computing nodes;

transmitting electronic change messages updating the change in ownership history to the source computing node and the other computing nodes;

aggregating the cryptographic currency with another cryptographic currency representing the same security into an aggregated cryptographic currency, the aggregated cryptographic currency representing the same security and a second position, the second position representative of a second quantity of the security, the second quantity of the security larger than the first quantity of the security; and

updating the ledger to perfect ownership rights in the aggregated cryptographic currency.

at least one interface configured to receive, from a source computing node in a network, one or more electronic transaction messages, wherein the one or more electronic transaction messages include at least transaction information and a digital signature of the source computing node, wherein the transaction information includes at least: a recipient electronic address of a recipient computing node; a cryptographic currency representing a security and a first position, the first position representative of a first quantity of the security; and an ownership history of the cryptographic currency;

at least one memory; and

at least one processor configured to execute instructions stored in the at least one memory in order to: internally verify an authenticity of the one or more electronic transaction messages based on the digital signature; internally verify the source computing node as owner of the cryptographic currency based on the ownership history using a ledger; receive electronic verification messages from a plurality of other computing nodes in the network, the electronic verification messages including information providing external verification of the source computing node as the owner of the cryptographic currency; record, in the ledger, a change in the ownership history from the source computing node to the recipient computing node in response to the ownership history being verified internally and by the other computing nodes; transmit electronic change messages updating the change in ownership history to the source computing node and the other computing nodes; aggregate the cryptographic currency with another cryptographic currency representing the same security into an aggregated cryptographic currency, the aggregated cryptographic currency representing the same security and a second position, the second position representative of a second quantity of the security, the second quantity of the security larger than the first quantity of the security; and update the ledger to perfect ownership rights in the aggregated cryptographic currency.