Systems and methods for using digital identity frameworks and infrastructure to access and interact with decentralized applications

Patent metadata

Field	Value
Publication number	US-2023421386-A1
Application number	US-202318342450-A
Country	US
Kind code	A1
Filing date	Jun 27, 2023
Priority date	Jun 27, 2022
Publication date	Dec 28, 2023
Grant date	—

Abstract

Systems and methods for using digital identity frameworks to access and interact with decentralized applications are disclosed. A method may include a proxy smart contract: receiving a trade from an authorized trader and an on-chain format of a verifiable credential, wherein the on-chain format of the verifiable credential comprises a flattened array of an authorized trader verifiable credential, a trusted entity verifiable credential, and root issuer verifiable credential; verifying, using a verifier smart contract, the on-chain format of the verifiable credential, wherein the verifier smart contract queries a digital identifier registry to verify that an authorized trader digital identifier, a trusted entity digital identifier, and a root issuer digital identifier associated with the root issuer verifiable credential are active; and in response to the authorized trader digital identifier, the trusted entity digital identifier, and root issuer digital identifier being active, executing, with a decentralized finance smart contract, the trade.

First claim

What is claimed is:

1 . A method for using digital identity frameworks and infrastructure to access and interact with decentralized applications, comprising:
receiving, by a proxy smart contract, a trade from an authorized trader and an on-chain format of a verifiable credential, wherein the on-chain format of the verifiable credential comprises a flattened array of an authorized trader verifiable credential, a trusted entity verifiable credential, and root issuer verifiable credential; verifying, by the proxy smart contract and using a verifier smart contract, the on-chain format of the verifiable credential, wherein the verifier smart contract queries a digital identifier registry to verify that an authorized trader digital identifier associated with the authorized trader verifiable credential, a trusted entity digital identifier associated with the trusted entity verifiable credential, and a root issuer digital identifier associated with the root issuer verifiable credential are active; and in response to the authorized trader digital identifier, the trusted entity digital identifier, and root issuer digital identifier being active, executing, by the proxy smart contract and with a decentralized finance smart contract, the trade.

2 . The method of claim 1 , wherein the authorized trader digital identifier, the trusted entity digital identifier, and root issuer digital identifier are registered in the digital identifier registry.

3 . The method of claim 1 , wherein the authorized trader verifiable credential, the trusted entity verifiable credential, and the root issuer verifiable credential are nested in an off-chain format of the verifiable credential.

4 . The method of claim 3 , wherein a wallet for the authorized trader coverts the off-chain format of the verifiable credential into the on-chain format of the verifiable credential.

5 . The method of claim 1 , wherein the trusted entity verifiable credential is issued by a root issuer.

6 . The method of claim 1 , wherein the authorized trader verifiable credential is issued by a trusted entity issuer.

7 . The method of claim 1 , further comprising:
receiving, by the proxy smart contract, verification that the trade complies with one or more rules.

8 . The method of claim 1 , wherein the verifier smart contract is configured to confirm that a trusted entity and a root issuer are known.

9 . The method of claim 1 , wherein the verifier smart contract is configured to verify a digital signature for a proof using an Ethereum address private key for a signer.

10 . A method of preparing an on-chain verifiable credential, comprising:
claiming, by an authorized trader user interface, an authorized trader verifiable credential from a trusted entity, wherein the authorized trader verifiable credential comprises a trusted entity verifiable credential for the trusted entity and a root issuer verifiable credential for a root issuer, wherein the root issuer verifiable credential and the trusted entity verifiable credential are nested within the authorized trader verifiable credential; registering, by the authorized trader user interface, an authorized trader digital identifier with a digital identifier registry; converting, by the authorized trader user interface, the authorized trader verifiable credential from an off-chain format to an on-chain format, wherein the on-chain format comprises a flattened array of the authorized trader verifiable credential, the trusted entity verifiable credential, and the root issuer verifiable credential; and submitting, by the authorized trader user interface, a trade and the on-chain format of the authorized trader verifiable credential to a proxy smart contract; wherein the proxy smart contract is configured to forward the on-chain format of the authorized trader verifiable credential to a verifier smart contract, and the verifier smart contract is configured to query a digital identifier registry to verify that an authorized trader digital identifier associated with the authorized trader verifiable credential, a trusted entity digital identifier associated with the trusted entity verifiable credential, and a root issuer digital identifier associated with the root issuer verifiable credential are active, and in response to the authorized trader digital identifier, the trusted entity digital identifier, and root issuer digital identifier being active, execute the trade with a decentralized finance smart contract.

11 . The method of claim 10 , wherein the trusted entity verifiable credential is issued by a root issuer.

12 . The method of claim 10 , wherein the authorized trader verifiable credential is issued by a trusted entity issuer.

13 . The method of claim 10 , wherein the authorized trader digital identifier, the trusted entity digital identifier, and root issuer digital identifier are registered in the digital identifier registry.

14 . A system, comprising:
an authorized trader interface for an authorized trader; a trusted entity interface for a trusted entity; a root issuer interface for a root issuer; a proxy smart contract in communication with the authorized trader interface and a decentralized finance smart contract; a verifier smart contract in communication with the proxy smart contract; a digital identifier registry; and a decentralized finance smart contract; wherein:
the root issuer interface registers a root issuer digital identifier with the digital identifier registry;
the root issuer interface issues a trusted entity verifiable credential to the trusted entity, wherein the trusted entity verifiable credential comprises a root issuer verifiable credential;
the trusted entity claims the trusted entity verifiable credential and registers a trusted digital identifier with the digital identifier registry;
the trusted entity interface issues an authorized trader verifiable credential to the authorized trader, wherein the authorized trader verifiable credential comprises the trusted entity verifiable credential and the root issuer verifiable credential, wherein the trusted entity verifiable credential and the root issuer verifiable credential are nested in the authorized trader verifiable credential;
the authorized trader claims the authorized trader verifiable credential and registers an authorized trader digital identifier with the digital identifier registry;
the authorized trader interface converts the authorized trader verifiable credential from an off-chain format to an on-chain format, wherein the on-chain format comprises a flattened array of the authorized trader verifiable credential, the trusted entity verifiable credential, and the root issuer verifiable credential;
the authorized trader interface communicates a trade and the on-chain format of the authorized trader verifiable credential to the proxy smart contract;
the proxy smart contract communicates the trade and the on-chain format of the authorized trader verifiable credential to the verifier smart contract;
the verifier smart contract queries the digital identifier registry to verify that an authorized trader digital identifier associated with the authorized trader verifiable credential, a trusted entity digital identifier associated with the trusted entity verifiable credential, and a root issuer digital identifier associated with the root issuer verifiable credential are active; and in response to the authorized trader digital identifier, the trusted entity digital identifier, and root issuer digital identifier being active, the proxy smart contract executes the trade with the decentralized finance smart contract.

Assignees

• Jpmorgan Chase Bank Na

Inventors

• Kassis George
• Jones Kirsten
• Lobban Tyrone D
• Sharma Nikhil
• Moudgal Keerthi
• Djourov Stoyan H
• Pratt Angela
• Bhurat Jitendra
• Ahluwalia Manmeet
• Vishakh
• Kishore Bhaskar

Classifications

• H04L9/3247 Primary

  involving digital signatures · CPC title

• H04L9/0819

  Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s) (network architectures or network communication protocols for key distribution in a packet data network H04L63/062) · CPC title

• H04L9/50

  using hash chains, e.g. blockchains or hash trees · CPC title

• G06Q20/02 Primary

  involving a neutral party, e.g. certification authority, notary or trusted third party [TTP] · CPC title

• G06Q20/065

  using e-cash · CPC title