SYSTEMS AND METHODS FOR CREATING MULTIPLE RECORDS BASED ON AN ORDERED SMART CONTRACT

• US 20200134206A1
• Filed: 06/13/2018
• Published: 04/30/2020
• Est. Priority Date: 06/14/2017
• Status: Active Grant

• Current Assignee: Visa International Service Association (Visa, Inc.)
• Original Assignee: Visa International Service Association (Visa, Inc.)
• Inventors: Thekadath, Ajith, Tidwell, Timothy P., Javaji, Venkata, Jacobs, Mondo
• Granted Patent: US 10,762,217 B2
• Time in Patent Office: Days
• CPC Class Codes: G06F 16/27 Replication, distribution or synchronisation of data between databases or within a distributed database system; Distributed database system architectures therefor
• CPC Class Codes: G06F 21/602 Providing cryptographic facilities or services
• CPC Class Codes: G06Q 10/0635 Risk analysis of enterprise or organisation activities
• CPC Class Codes: G06Q 20/36 using electronic wallets or electronic money safes
• CPC Class Codes: G06Q 20/3825 Use of electronic signatures
• CPC Class Codes: G06Q 20/389 Keeping log of transactions for guaranteeing non-repudiation of a transaction
• CPC Class Codes: G06Q 2220/00 Business processing using cryptography
• CPC Class Codes: G06Q 40/02 Banking, e.g. interest calculation or account maintenance credit or loans G06Q40/03
• CPC Class Codes: H04L 2209/56 Financial cryptography, e.g. electronic payment or e-cash
• CPC Class Codes: H04L 9/0637 Modes of operation, e.g. cipher block chaining [CBC], electronic codebook [ECB] or Galois/counter mode [GCM]
• CPC Class Codes: H04L 9/30 Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy
• CPC Class Codes: H04L 9/3239 involving non-keyed hash functions, e.g. modification detection codes [MDCs], MD5, SHA or RIPEMD
• CPC Class Codes: H04L 9/3247 involving digital signatures
• CPC Class Codes: H04L 9/3297 involving time stamps, e.g. generation of time stamps
• CPC Class Codes: H04L 9/50 using hash chains, e.g. blockchains or hash trees

Abstract

A method for creating a smart contract detailing an ordered set of events is disclosed. A smart contract can include information about multiple events and responses for each event. The events and response can be arranged in a predefined order. The responses can include adding new records to a blockchain.

Claims

1. A method comprising:

receiving, by an administrative node computer, a smart contract indicating that an ordered set of interactions will take place in response to an ordered set of events;

in response to a first event of the ordered set of events, transmitting, by the administrative node computer, to a second node computer, an instruction to generate a first data package for a first interaction of the ordered set of interactions, wherein the smart contract indicates that the first interaction will take place in response to the first event;

receiving, by the administrative node computer, from the second node computer, the first data package for the first interaction;

generating, by the administrative node computer, a first block for a blockchain, the first block including the first data package for the first interaction;

in response to a second event of the ordered set of events, transmitting, by the administrative node computer, to the second node computer, an instruction to generate a second data package for a second interaction of the ordered set of interactions, wherein the smart contract indicates that the second interaction will take place in response to the second event;

receiving, by the administrative node computer, from the second node computer, the second data package for the second interaction; and

generating, by the administrative node computer, a second block for the blockchain, the second block including the second data package for the first interaction.

2. The method of claim 1, wherein the smart contract indicates that each interaction in the ordered set of interactions corresponds to an event in the ordered set of events, and wherein the smart contract indicates that each interaction will take place in response to a corresponding event only if the corresponding event occurs within a specific event order.

3. The method of claim 1, further comprising:

receiving, by the administrative node computer, a notification that the first event has taken place;

verifying, by the administrative node computer, based on the smart contract, that the first event is supposed to occur first within the ordered set of events;

determining, by the administrative node computer, based on the smart contract, that the first interaction is to take place in response to the first event;

receiving, by the administrative node computer, a notification that the second event has taken place;

verifying, by the administrative node computer, based on the smart contract, that the second event is supposed to occur second within the ordered set of events; and

determining, by the administrative node computer, based on the smart contract, that the second interaction is to take place in response to the second event.

4. The method of claim 3, further comprising:

in response to receiving the notification that the first event has taken place, marking, by the administrative node computer, the first event as complete; and

before transmitting the instruction to generate the second data package for the second interaction, verifying, by the administrative node computer, that the first event is marked as complete.

5. The method of claim 3, wherein the notification that the first event has taken place is received from a third node computer, wherein the first interaction is an interaction between the second node computer and the third node computer, wherein the notification that the second event has taken place is received from a fourth node computer, and wherein the second interaction is an interaction between the second node computer and the fourth node computer.

6. An administrative node computer comprising:

a processor; and

a computer readable medium, the computer readable medium comprising code, executable by the processor, for implementing a method comprising;

receiving a smart contract indicating that an ordered set of interactions will take place in response to an ordered set of events;

in response to a first event of the ordered set of events, transmitting, to a second node computer, an instruction to generate a first data package for a first interaction of the ordered set of interactions, wherein the smart contract indicates that the first interaction will take place in response to the first event;

receiving, from the second node computer, the first data package for the first interaction;

generating a first block for a blockchain, the first block including the first data package for the first interaction;

in response to a second event of the ordered set of events, transmitting, to the second node computer, an instruction to generate a second data package for a second interaction of the ordered set of interactions, wherein the smart contract indicates that the second interaction will take place in response to the second event;

receiving, from the second node computer, the second data package for the second interaction; and

generating a second block for the blockchain, the second block including the second data package for the first interaction.

7. The administrative node computer of claim 6, wherein the smart contract indicates that each interaction in the ordered set of interactions corresponds to an event in the ordered set of events, and wherein the smart contract indicates that each interaction will take place in response to a corresponding event only if the corresponding event occurs within a specific event order.

8. The administrative node computer of claim 6, the method further comprising:

receiving a notification that the first event has taken place;

verifying, based on the smart contract, that the first event is supposed to occur first within the ordered set of events;

determining, based on the smart contract, that the first interaction is to take place in response to the first event;

receiving a notification that the second event has taken place;

verifying, based on the smart contract, that the second event is supposed to occur second within the ordered set of events; and

determining, based on the smart contract, that the second interaction is to take place in response to the second event.

9. The administrative node computer of claim 8, wherein the notification that the first event has taken place is received from a third node computer, wherein the notification that the second event has taken place is received from a fourth node computer, and the method further comprising:

receiving a first digital signature for the notification that the first event has taken place from the third node computer;

verifying the first digital signature using a first public key associated with the third node computer, wherein the instruction to generate the first data package is transmitted in response to verifying the first digital signature;

receiving a second digital signature for the notification that the second event has taken place from the fourth node computer; and

verifying the second digital signature using a second public key associated with the fourth node computer, wherein the instruction to generate the second data package is transmitted in response to verifying the second digital signature.

10. The administrative node computer of claim 6, the method further comprising:

in response to receiving the smart contract, transmitting messages to each computer associated with the ordered set of interactions indicating that an interaction will take place if a certain event takes place.

11. A method comprising:

generating, by a second node computer, a smart contract indicating that an ordered set of interactions will take place in response to an ordered set of events;

in response to a first event of the ordered set of events, generating, by the second node computer, a first data package for a first interaction of the ordered set of interactions, wherein the smart contract indicates that the first interaction will take place in response to the first event;

transmitting, by the second node computer, the first data package to an administrative node computer, wherein the administrative node computer generates a first block for a blockchain, the first block including the first data package;

in response to a second event of the ordered set of events, generating, by the second node computer, a second data package for a second interaction of the ordered set of interactions, wherein the smart contract indicates that the second interaction will take place in response to the second event; and

transmitting, by the second node computer, the second data package to the administrative node computer, wherein the administrative node computer creates a second block for the blockchain, the second block including the second data package.

12. The method of claim 11, wherein the smart contract indicates that each interaction in the ordered set of interactions corresponds to an event in the ordered set of events, and wherein the smart contract indicates that each interaction will take place in response to a corresponding event only if the corresponding event occurs within a specific event order.

13. The method of claim 11, further comprising:

transmitting, by the second node computer, the smart contract to the administrative node computer, wherein the administrative node computer transmits messages to each computer associated with the ordered set of interactions indicating that an interaction will take place if a certain event takes place.

14. The method of claim 11, further comprising:

receiving, by the second node computer, from the administrative node computer, an instruction to generate the first data package for the first interaction, wherein the administrative node computer sent the instruction in response to a notification that the first event has taken place; and

receiving, by the second node computer, from the administrative node computer, an instruction to generate the second data package for the second interaction, wherein the administrative node computer sent the instruction in response to a notification that the second event has taken place.

15. The method of claim 11, further comprising:

generating, by the second node computer, a digital signature for the smart contract using a private key; and

transmitting, by the second node computer, the digital signature for the smart contract to the administrative node computer, wherein the administrative node computer obtains an additional digital signature for the smart contract from a first node computer, wherein the first node computer generated the additional digital signature using an additional private key.

16. (canceled)