Systems and methods of secure provenance for distributed transaction databases

Patent metadata

Field	Value
Publication number	US-10097356-B2
Application number	US-201615200756-A
Country	US
Kind code	B2
Filing date	Jul 1, 2016
Priority date	Jul 2, 2015
Publication date	Oct 9, 2018
Grant date	Oct 9, 2018

Abstract

An electronic resource tracking and storage computer system is provided that communicates with a distributed blockchain computing system that includes multiple computing nodes. The system includes a storage system, a transceiver, and a processing system. The storage system includes an resource repository and transaction repository that stores submitted blockchain transactions. A new resource issuance request is received, and a new resource is added to the resource repository in response. A new blockchain transaction is generated and published to the blockchain. In correspondence with publishing to the blockchain, the transaction storage is updated with information that makes up the blockchain transaction and some information that was not included as part of the blockchain transaction. The transaction storage is updated when the blockchain is determined to have validated the previously submitted blockchain transaction.

First claim

The invention claimed is:

1. An electronic resource tracking and storage computer system that is configured to communicate with a distributed blockchain computing system that includes multiple computing nodes, each computing node storing a copy of the blockchain of the distributed blockchain computing system, the electronic resource tracking and storage computer system comprising:
a computer storage system configured to store:
a plurality of blockchain participant identifiers that are each associated with at least one private key, each of the plurality of blockchain participant identifiers associated with a corresponding one of plural different participants;
a resource repository that includes a plurality of blockchain resource identifiers, wherein each of the plurality of blockchain resource identifiers identifies a corresponding resource that is tracked on the blockchain, and each of the plurality of blockchain resource identifiers is associated with at least one resource private key;
a transaction repository that includes a plurality of blockchain transaction identifiers that correspond to blockchain transactions submitted to the distributed blockchain computing system;

a transceiver configured to receive, from remote computing devices, electronic data messages that each include at least one data transaction request, where a first electronic data message of the electronic data messages includes a digital resource issuance request;
a processing system that includes at least one hardware processor coupled to the computer storage system and the transceiver, the processing system configured to:
receive, via the transceiver, the digital resource issuance request for issuance of a new resource for a first participant of the plural different participants;
in response to reception of the digital resource issuance request, create and add, to the resource repository, a new digital resource identifier, the new digital resource identifier identifying the new resource and the new digital resource identifier being associated with a corresponding private key;
generate a blockchain transaction that is to a participant blockchain identifier of the first participant, the generated blockchain transaction including the new digital resource identifier and a quantity value for the new resource that is identified by the new digital resource identifier;
sign the generated blockchain transaction with the private key that is associated with the new digital resource identifier;
publish the generated blockchain transaction to the distributed blockchain computing system for validation thereby;
in correspondence with publishing the generated blockchain transaction to the distributed blockchain computing system, create and add, to the transaction repository, a new transaction record that includes at least some of the data included in the generated blockchain transaction and additional transaction data that was not included in the generated blockchain transaction;
determine that the blockchain has validated the submitted blockchain transaction; and
responsive to the validation, update the new transaction record to indicate that the generated transaction has been validated by the blockchain.

2. The electronic resource tracking and storage computer system of claim 1 , wherein the participant blockchain identifier is plural different participant blockchain identifiers with outputs for the generated transaction associated with respective ones of the plural different participant blockchain identifiers.

3. The electronic resource tracking and storage computer system of claim 1 , wherein the processing system is further configured to:
begin a first process, during which participants submit data transaction requests to send or receive amounts of the resource that is associated with the new digital resource identifier;
close the first process to reception of data transaction requests from the participants;
generate a single blockchain transaction that includes inputs that correspond to source participant blockchain identifiers and outputs that correspond to destination participant blockchain identifiers; and
publish the single blockchain transaction to the distributed blockchain computing system for validation thereby.

4. The electronic resource tracking and storage computer system of claim 3 , wherein the outputs also include source participant blockchain identifiers for unspent amounts of the resource.

5. The electronic resource tracking and storage computer system of claim 1 , wherein the generated blockchain transaction includes a hash value of the additional transaction data.

6. The electronic resource tracking and storage computer system of claim 1 , wherein the generated blockchain transaction is also signed by another private key.

7. The electronic resource tracking and storage computer system of claim 6 , wherein the another private key is associated with the electronic resource tracking and storage computer system.

8. The electronic resource tracking and storage computer system of claim 1 , wherein the processing system is further configured to:
receive a resource allocation request that identifies at least a second participant that will be allocated at least a portion of the quantity value that is an unspent output of the generated blockchain transaction; and
generate a second blockchain transaction that includes data from the output of the generated blockchain transaction as an input for the second blockchain transaction, and the portion of the quantity value and the a second participant blockchain identifier that is associated with the second participant as outputs for the second blockchain transaction;
publish the second generated blockchain transaction to the distributed blockchain computing system for validation thereby;
in correspondence with publishing the second generated blockchain transaction to the distributed blockchain computing system, create and add, to the transaction repository, a second transaction record that includes at least some of the data included in the second generated blockchain transaction and additional transaction data that was not included in the second generated blockchain transaction.

9. The electronic resource tracking and storage computer system of claim 1 , further comprising:
the distributed blockchain computing system, where the blockchain is a private blockchain.

10. The electronic resource tracking and storage computer system of claim 1 , wherein the corresponding private key is unique, among other keys associated with other digital resource identifiers, to the created new digital resource identifier.

11. A method of electronic resource tracking using an electronic resource tracking and storage computer system that is configured to communicate with a distributed blockchain computing system that includes multiple computing nodes, each computing node storing a copy of the blockchain of the distributed blockchain computing system, the electronic resource tracking and storage computer system storing (a) a plurality of blockchain participant identifiers that are each associated with at least one private key, each of the plurality of blockchain participant identifiers associated with a corresponding one of plural different participants, (b) a resource repository that includes a plurality of blockchain resource identifiers that are each associated with at least one resource private key, each of the plurality of blockchain resource identifiers being for a corresponding resource that is tracked on the blockchain, and (c) a transaction repository that includes a plurality of blockchain transaction identifiers that correspond to blockchain transactions submitted to the distrib

Assignees

• Nasdaq Inc

Inventors

• Zinder Alex

Classifications

• H04L2209/56

  Financial cryptography, e.g. electronic payment or e-cash · CPC title

• H04L63/123

  received data contents, e.g. message integrity · CPC title

• G06F21/6254

  by anonymising data, e.g. decorrelating personal data from the owner's identification · CPC title

• H04L9/3239

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

• H04L9/3247 Primary

  involving digital signatures · CPC title