公开(公告)号：US11516001B2

公开(公告)日：2022-11-29

申请号：US17176538

申请日：2021-02-16

Applicant: MASTERCARD INTERNATIONAL INCORPORATED

Inventor： Steven C. Davis ,  Rob Byrne ,  Robert Collins ,  Leandro Nunes Da Silva Carvalho ,  Deborah Eleanor Barta

IPC: H04L29/06 ,  H04L9/06 ,  G06Q30/00 ,  G06F16/27 ,  H04L9/08 ,  H04L9/30 ,  H04L9/32 ,  H04L9/00

Abstract: A method for conveying auditable information regarding provenance of a product that is cryptographically accurate while retaining complete anonymity of product and participant on a blockchain includes: receiving a product identifier; generating a digital token by applying a hashing algorithm to the product identifier; generating an entry value by applying the hashing algorithm to a combination of an event identifier and the digital token; generating a digital signature by digitally signing a data package using a private key of a cryptographic key pair, where the data package includes at least a blockchain address, the event identifier, and the digital token; and transmitting the blockchain address, the digital signature, and the entry value to a node in a blockchain network.

公开(公告)号：US12301699B2

公开(公告)日：2025-05-13

申请号：US17978616

申请日：2022-11-01

Applicant: Mastercard International Incorporated

Inventor： Steven C. Davis ,  Rob Byrne ,  Robert Collins ,  Leandro Nunes Da Silva Carvalho ,  Deborah Eleanor Barta

IPC: H04L29/06 ,  G06F16/27 ,  G06Q30/018 ,  H04L9/06 ,  H04L9/08 ,  H04L9/30 ,  H04L9/32 ,  H04L9/00

Abstract: A method for conveying auditable information regarding provenance of a product that is cryptographically accurate while retaining complete anonymity of product and participant on a blockchain includes: receiving a product identifier; generating a digital token by applying a hashing algorithm to the product identifier; generating an entry value by applying the hashing algorithm to a combination of an event identifier and the digital token; generating a digital signature by digitally signing a data package using a private key of a cryptographic key pair, where the data package includes at least a blockchain address, the event identifier, and the digital token; and transmitting the blockchain address, the digital signature, and the entry value to a node in a blockchain network.

公开(公告)号：US20210398093A1

公开(公告)日：2021-12-23

申请号：US16946397

申请日：2020-06-19

Applicant: MASTERCARD INTERNATIONAL INCORPORATED

Inventor： Susan Lynch ,  Leandro Nunes Da Silva Carvalho ,  Bella Wu ,  Paul Taylor ,  Robert Collins ,  Deborah Eleanor Barta

IPC: G06Q20/10 ,  G06Q20/38 ,  G06Q20/40 ,  G06Q40/02 ,  G06Q20/34 ,  H04L9/32 ,  G06F16/23 ,  G06F9/54 ,  H04L29/08

Abstract: A method for triggering payment transactions through predetermined events identified using a blockchain includes: receiving, at a first system, trigger data including a first account identifier, second account identifier, and trigger event values; receiving, at the first system, blockchain data values, each including a hash value; identifying, by the first system, a match between a specific blockchain data value and a specific trigger event value based on the hash value; transmitting, by the first system, a notification message to a second system including the first account identifier and second account identifier; identifying, by the second system, a first payment identifier using the first account identifier and a second payment identifier using the second account identifier; and initiating, by the second system, a payment transaction for payment from a transaction account associated with the first payment identifier to a transaction account associated with the second payment identifier.