Abstract: Systems, methods, and computer-readable storage media utilized in math-based currency (MBC) exchange utilizing MBC transaction guarantees. One method includes receiving, from a merchant point of sale (POS) terminal, a payment reimbursement request comprising a guarantee identifier associated with an MBC transfer. The method further includes determining, utilizing the guarantee identifier, transaction information. The method further includes determining, utilizing the transaction information, the guarantee identifier is associated with a failed transaction based on accessing and analyzing a plurality of disputed transactions on an MBC blockchain. The method further includes, in response to identifying the failed transaction, initiating an MBC payment from the financial computing system to an MBC address of a merchant. The method further includes providing, to the merchant POS terminal, a payment confirmation.

Abstract: Systems, methods, and computer-readable storage media utilized in math-based currency (MBC) exchange utilizing MBC transaction guarantees. One method includes receiving, from a merchant point of sale (POS) terminal, a payment reimbursement request comprising a guarantee identifier associated with an MBC transfer. The method further includes determining, utilizing the guarantee identifier, transaction information. The method further includes determining, utilizing the transaction information, the guarantee identifier is associated with a failed transaction based on accessing and analyzing a plurality of disputed transactions on an MBC blockchain. The method further includes, in response to identifying the failed transaction, initiating an MBC payment from the financial computing system to an MBC address of a merchant. The method further includes providing, to the merchant POS terminal, a payment confirmation.

Abstract: Systems, methods, and computer-readable storage media utilized in math-based currency (MBC) exchange utilizing MBC transaction guarantees. One method includes receiving, from a merchant point of sale (POS) terminal, a payment reimbursement request comprising a guarantee identifier associated with an MBC transfer. The method further includes determining, utilizing the guarantee identifier, transaction information. The method further includes determining, utilizing the transaction information, the guarantee identifier is associated with a failed transaction based on accessing and analyzing a plurality of disputed transactions on an MBC blockchain. The method further includes, in response to identifying the failed transaction, initiating an MBC payment from the financial computing system to an MBC address of a merchant. The method further includes providing, to the merchant POS terminal, a payment confirmation.

Abstract: The disclosure relates to a device for deburring at least one borehole opening of a metal workpiece, wherein the device has a rotationally symmetrical countersink bit. The countersink bit of the device is designed to remove at least one burr of the at least one borehole opening. The countersink bit can be introduced into an opening forming the at least one borehole opening and rotated. The disclosure also relates to a corresponding method.

Abstract: Systems and methods for expediting math-based currency (“MBC”) transactions. One method includes receiving a request for a pending MBC transaction, the request include an MBC address of a first party, an MBC address of a second party, and an amount of MBC to be transferred and determining a balance of MBC associated with the MBC address of the first party based on accessing a listing of address balances. Further the method includes in response to determining a threshold likelihood of success of confirming the pending MBC transaction, generating and formatting a guarantee identifier and embedding a copy of the guarantee identifier in a field of the pending MBC transaction. Further the method includes transmitting the guarantee identifier and transferring the amount of MBC from the MBC address of the first party to the MBC address of the second party based on verifying the pending MBC transaction.

Abstract: Systems and methods for expediting math-based currency (“MBC”) transactions are described. A financial institution facilitates the expedited MBC transactions. The expedited MBC transactions are achieved by guaranteeing merchants that a pending MBC transaction between the merchant and a customer will be verified by the MBC verification nodes. A provided guarantee can be collected on by the merchant in the event that a guaranteed MBC transaction is not verified by the MBC verification nodes.

Abstract: The disclosure relates to a device for deburring at least one borehole opening of a metal workpiece, wherein the device has a rotationally symmetrical countersink bit. The countersink bit of the device is designed to remove at least one burr of the at least one borehole opening. The countersink bit can be introduced into an opening forming the at least one borehole opening and rotated. The disclosure also relates to a corresponding method.

Abstract: Systems and methods for expediting math-based currency (“MBC”) transactions are described. A financial institution facilitates the expedited MBC transactions. The expedited MBC transactions are achieved by providing merchants with a customer score for a customer that is paying for goods or services with MBC. The customer score is based at least in part on prior MBC transactions entered into by the customer. In some arrangements, the customer score is also based on balance information and transaction information associated with accounts maintained with the financial institution.

Abstract: Systems and methods for expediting math-based currency (“MBC”) transactions are described. A financial institution facilitates the expedited MBC transactions. The expedited MBC transactions are achieved by guaranteeing merchants that a pending MBC transaction between the merchant and a customer will be verified by the MBC verification nodes. A provided guarantee can be collected on by the merchant in the event that a guaranteed MBC transaction is not verified by the MBC verification nodes.

Abstract: A method includes verifying the identity of an individual. A virtual passport for the individual is created upon verifying the identity of the individual. The virtual passport uniquely identifies the individual. A public/private key pair associated with the individual is generated. The virtual passport is signed with the private key. The signed virtual passport is entered in a public block chain. The signed virtual passport may be retrieved from the public block chain. The authenticity of the signed virtual passport may be determined via the public key.

Abstract: A method includes verifying the identity of an individual. A virtual passport for the individual is created upon verifying the identity of the individual. The virtual passport uniquely identifies the individual. A public/private key pair associated with the individual is generated. The virtual passport is signed with the private key. The signed virtual passport is entered in a public block chain. The signed virtual passport may be retrieved from the public block chain. The authenticity of the signed virtual passport may be determined via the public key.