Automated event processing computing platform for handling and enriching blockchain data

Patent metadata

Field	Value
Publication number	US-11734686-B2
Application number	US-202117494158-A
Country	US
Kind code	B2
Filing date	Oct 5, 2021
Priority date	Dec 7, 2017
Publication date	Aug 22, 2023
Grant date	Aug 22, 2023

Abstract

Methods and systems for using block chain technology to verify transaction data are described herein. A computing platform may receive data about events related to transactions, personal or corporate information, supply chains, and other relevant information about a person or corporate entity. The event information may be received, aggregated, and processed to determine metadata about the person or corporate entity. The metadata may indicate, for example, a trustworthiness of the person or corporate entity for various purposes. Such event information and/or metadata may be stored as transactions in a block chain that may be accessible by counterparties to a potential transaction involving the person or corporate entity. The automated event processing computing platform may further use automated techniques to implement smart transactions between the person/entity and counterparty based on the trust metadata.

First claim

What is claimed is:

1. A method comprising:
at a computing platform comprising one or more processors, memory, and a network interface:
receiving, via the network interface, information identifying a user comprising an authorization signed by a user's private key;
receiving, from a plurality of computing systems and via a network interface, event information associated with a user;
matching, based on the event information, the event information to a blockchain identifier associated with the user;
retrieving, based on the user's private key and from one or more blocks of a blockchain stored in the memory, historical information associated with the user;
retrieving, from a block in the blockchain and based on the event information, a smart contract comprising a first function and a second function;
calculating, by a plurality of trained models of the computing platform and based on the historical information associated with the user, a numerical trust level associated with the user, wherein the plurality of trained models of the computing platform calculate a higher numerical trust level or a lower numerical trust level based on specified information associated with the user and wherein the plurality of trained models of the computing platform is trained by a plurality of data sets using a neural network that maps the plurality of data sets to a plurality of target variables that indicate the numerical trust level;
generating, based on the event information and the historical information, an event block comprising a first data structure including data modified by an executed first function and a trust block comprising a second data structure including data modified by an executed second function; and
associating the event block to an event sidechain of a plurality of sidechains of the blockchain and the trust block to a main chain of the blockchain, wherein the trust block comprises a timestamp and wherein the event block is associated to a selected event sidechain of the plurality of sidechains of the block chain based on the timestamp of the trust block.

2. The method of claim 1 , further comprising:
prior to the receiving the information identifying the user, receiving user authorization to access records maintained by one or more systems that record events about the user; and
receiving, from the one or more systems that record events about the user, the historical information comprising historical event information.

3. The method of claim 1 , further comprising determining, based on the information identifying the user, a blockchain identifier associated with the user, wherein the event block comprises the blockchain identifier.

4. The method of claim 1 , wherein conditional logic executed by the first function and the second function executes when the trust level is above a threshold.

5. The method of claim 4 , wherein the conditional logic adjusts a value based on the numerical trust level.

6. The method of claim 1 , further comprising prior to the executing of the function, receiving, from the user, a payment of a token associated with the blockchain.

7. The method of claim 1 , wherein the memory comprises a plurality of user blockchains associated with a respective plurality of users, further comprising:
generating, for a main blockchain that is separate from the plurality of user blockchains, a second new block comprising an event record that further comprises the historical information and the numerical trust level; and
transmitting the second new block to a plurality of nodes that maintain the blockchain.

8. The method of claim 1 , wherein generating the event block causes the computing platform to receive tokens associated with the blockchain.

9. The method of claim 1 , wherein the historical information comprises information about at least one or more of transactions with other users, locations of the transactions, or entities and amounts of the transactions.

10. The method of claim 9 , wherein the historical information further comprises one or more of user demographic information, user credit report information, and information about user assets.

11. The method of claim 1 , wherein the executed first function initializes the second function for receiving a bid on a loan to the user.

12. A computing platform comprising:
one or more processors;
a network interface; and
memory storing instructions that, when executed by the one or more processors, cause the computing platform to:
receive, via the network interface, information identifying a user comprising an authorization signed by a user's private key;
receive from a plurality of computing systems and via a network interface, event information associated with a user
match, based on the event information, the event information to a blockchain identifier associated with the user;
retrieve, based on the user's private key and the blockchain identifier and from one or more blocks of a blockchain stored in the memory, historical information associated with the user;
training, using a neural network, a plurality of models of the computing platform by mapping a plurality of input data sets to a plurality of target variables that indicate a trustworthiness level;
calculate, by the plurality of models of the computing platform and based on the historical information associated with the user, a numerical trust level associated with the user, wherein the historical information comprises a location of the user and a location of a transaction counterparty at a time of an associated transaction and wherein the plurality of models of the computing platform calculate a higher numerical trust level or lower numerical trust level based on specified information associated with the user;
generate, based on the event information and the historical information, an event block comprising a first data structure including data modified by an executed first function and a trust block comprising a second data structure including data modified by an executed second function; and
associate the event block to an event sidechain of a plurality of sidechains of the blockchain and the trust block to a main chain of the blockchain, wherein the trust block comprises a timestamp and wherein the event block is associated to a selected event sidechain of the plurality of sidechains of the block chain based on the timestamp of the trust block.

13. The computing platform of claim 12 , wherein the instructions further cause the computing platform to:
prior to receipt of information identifying the user, receive user authorization to access records maintained by one or more systems that record events about the user; and
receive, from the one or more systems that record events about the user, the historical information.

14. The computing platform of claim 12 , wherein the memory comprises a plurality of user blockchains associated with a respective plurality of users, wherein the instructions further cause the computing platform to:
generate, for a main blockchain that is separate from the plurality of user blockchains, a second new block comprising an event record that further comprises the historical information and the numerical trust level; and
transmit the second new block to a plurality of nodes that maintain the blockchain.

15. The computing platform of claim 12 , wherein the historical information comprises information about transactions with other users or entities and amounts of the transactions.

16. The computing platform of claim 15 , wherein the historical information further comprises one or more of user demographic information, u

Assignees

• Bank Of America

Inventors

• Lee Jisoo
• Checco John C
• Stahlhut William August
• Castinado Joseph
• Romano Brad
• Ramasamy Suki
• Lawrence Patrick N
• Ananthakrishnan Lekha

Classifications

• G06Q20/401 Primary

  Transaction verification · CPC title

• H04L9/0618

  Block ciphers, i.e. encrypting groups of characters of a plain text message using fixed encryption transformation · CPC title

• H04L9/3239

  involving non-keyed hash functions, e.g. modification detection codes [MDCs], MD5, SHA or RIPEMD · CPC title

• H04L9/3247

  involving digital signatures · CPC title

• H04L63/10

  for controlling access to devices or network resources · CPC title