US 2021/0201328 A1 · SYSTEM AND METHOD FOR MANAGING TRANSACTIONS IN DYNAMIC DIGITAL DOCUMENTS

Abstract

A system software and method which relates to the field of computing technology or business process models or computer systems or distributed computer systems or computer networks relating to general purpose devices that can be programmed to carry out a set of data table or hash table updates, validations or modifications supporting, enabling or executing public and private services, financial transactions and commercial applications. More specifically, the present invention is directed to distributed and decentralized computing in which said distributed network is supported and encrypted by cryptographic technology, hash functions and distributed public or private keys or other related technology. System and methods for managing dynamic electronic documents on a private distributed ledger comprise establishing a dynamic electronic document comprising a first state object, wherein the state object references a prior approved first transaction; proposing a second transaction comprising as an input the first state object and as an output a transaction command to alter the state object as well as what parameters are required to validate the second transaction; validating the proposed second transaction; and updating the state object on a private distributed ledger to reference the second transaction.

Claims62

Dependent claims

One or more computer systems for enhancing confidentiality of, preventing double spending of, and ensuring authorization of transactions for changing dynamic electronic documents, the one or more computer systems comprising:

one or more computer-readable storage mediums storing computer-executable instructions for controlling a first computer system of a first user to:
access a dynamic electronic document stored on a first portion of a private distributed ledger as a first transaction, the dynamic electronic document comprising a state object having contract code and one or more parameters;
send, by the first computer system to a second computer system of a second user, the first transaction and a second transaction comprising a reference to the first transaction, a transaction command to alter a parameter of the state object, and a signature of a first user that is generated using a private key of a public/private key pair of the first user;
receive, from the second computer system, a notarized second transaction that has been validated by the second computer system executing the contract code of the state object,
notarized by a notary service that
ensures that output of the first transaction that is input to the second transaction has not been consumed,
uses the public key of the first user to ensure that the second transaction is signed by the first user, and
signs the second transaction using a private key of a public/private key pair of the notary service, and
stored on a second portion of the private distributed ledger;
and
update, by the first computer system, the state object by storing the notarized second transaction on the first portion of the private distributed ledger wherein the first user controls access to the first portion of the private distributed ledger and the second user controls access to the second portion of the private distributed ledger;
and
one or more processors for executing the computer-executable instructions stored in one or more computer-readable storage mediums.

10 more elements

A method performed by a first computer system for enhancing confidentiality of, preventing double spending by, and ensuring authorization of transactions that change dynamic electronic documents, the method comprising:

accessing a dynamic electronic document stored on a first portion of a private distributed ledger as a first transaction, the dynamic electronic document comprising a state object having code and a parameter, the private distributed ledger not being a blockchain distributed ledger;
sending to a second computer system a second transaction comprising a reference to an output of the first transaction, a transaction command to alter a parameter of the state object, and a first signature of a first entity based on a first public/private key pair of the first entity;
receiving a notarized second transaction that has been notarized by a notary service that executes the code of the state object, ensures that the output of the first transaction has not been consumed, and adds to the second transaction a notary signature based on a notary public/private key pair, the notarized second transaction having a second signature of the second entity based on the second public/private key pair of a second entity;
and
updating the state object by storing the notarized second transaction on the first portion of the private distributed ledger wherein the first user controls access to the first portion of the private distributed ledger.

2 more elements

A method performed by a first host computer system of a node of a first party for finalizing an electronic transaction between the first party and a second party, wherein the node is a node of a private distributed ledger, the method comprising:

accessing, by the first host computer system, a first database of state objects of the private distributed ledger for storing state objects to which the first party is a party, wherein the private distributed ledger is not a blockchain;
receiving, by the first host computer system, a proposed transaction that is between the first party and the second party and comprises an input state object having a hash that identifies, contract code having rules, a command, and an output state object;
validating, by the first host computer system, the proposed transaction to generate a validated transaction, wherein validation comprises referencing the rules of the contract code of the input state object, executing by a virtual machine the contract code identified by the hash to confirm that the proposed transaction conforms to the rules, and confirming electronic signatures for the input state object and the proposed transaction;
verifying, by the first host computer system, that the input state object of the validated transaction has not previously been consumed by a prior transaction, by the first host computer system submitting the validated transaction to a notary service to the private distributed ledger, so that the notary service can return to the first host computer system a notarized transaction has been finalized based on the input state object not being in a notary database of consumed state objects that is maintained by the notary service, the input state object being added to the notary database, and the proposed transaction being signed with an electronic signature of the notary service to generate the notarized transaction;
send to
receiving, by the first host computer system, the notarized transaction;
and
storing, by the first host computer system, the output state object of the notarized transaction in the first database.

5 more elements

A first host computer system of a node of a first party for finalizing an electronic transaction between the first party and a second party, wherein the node is a node of a private distributed ledger, the first host computer system comprising:

one or more computer-readable storage mediums for storing computer-executable instructions for controlling the one or more computing systems to;
access, by the first host computer system, a first database of state objects of the private distributed ledger for storing state objects to which the first party is a party, wherein the private distributed ledger is not a blockchain;
receive, by the first host computer system, a proposed transaction that is between the first party and the second party and comprises an input state object having a hash that identifies contract code having rules, a command, and an output state object;
validate, by the first host computer system, the proposed transaction to generate a validated transaction, wherein validation comprises referencing the rules of the contract code of the input state object, executing by a virtual machine the contract code identified by the hash to confirm that the proposed transaction conforms to the rules, and confirming electronic signatures for the input state object and the proposed transaction;
verify, by the first host computer system, that the input state object of the validated transaction has not previously been consumed by a prior transaction, by the first host computer system submitting the validated transaction to a notary service to the private distributed ledger, so that the notary service can return to the first host computer system a notarized transaction has been finalized based on the input state object not being in a notary database of consumed state objects that is maintained by the notary service, the input state object being added to the notary database, and the proposed transaction being signed with an electronic signature of the notary service to generate the notarized transaction;
receive, by the first host computer system, the notarized transaction;
and
store, by the first host computer system, the output state object of the notarized transaction in the first database;
and
one or more processors for executing the computer-executable instructions stored in the one or more computer-readable storage mediums.

7 more elements

A method performed by a first computing system of a first node of a first entity for ensuring privacy of a dynamic electronic document, the first node being a node of a private distributed ledger, the method comprising:

creating, by the first computing system, a dynamic electronic document having state, having machine-readable instructions of a smart contract for performing permissible actions applicable to the dynamic electronic document, and having identifications of the first entity and a second entity, the first entity and the second entity having permission to access the dynamic electronic document, the dynamic electronic document being signed by the first entity using a private key of the first entity, the dynamic electronic document stored in a first data store of the first entity and a second data store of the second entity such that the first entity and the second entity control access to the dynamic electronic document, the first data store and the second data store being part of the private distributed ledger wherein the private distributed ledger is not a blockchain;
generating, by the first computing system, a proposed change to the state of the dynamic electronic document, the proposed change identifying an output state for the dynamic electronic document and identifying an input state for the dynamic electronic document, the proposed change being signed using the private key of the first entity;
executing, by the first computing system, the machine-readable instructions of the smart contract to validate the proposed change;
sending, by the first computing system, the validated proposed change to a second computing system of a second node of the second entity so that the second computing system can return to the first computing system a signed validated proposed change that is signed by a private key of the second entity, the second node being a node of the private distributed ledger;
sending, by the first computing system, the signed validated proposed change to a verification service to the private distributed ledger to verify that the signed validated proposed change is signed by the first entity and the second entity and that the input state is not in a register of consumed input states maintained by the verification service, to sign the signed validated proposed change to generate a verified proposed change, and to return the verified proposed change to the first computing system;
storing, by the first computing system, the verified proposed change in the first data store to record a new state for the dynamic electronic document;
and
sending, by the first computing system, the verified proposed change the second computing system so that the second computing system can store the verified proposed change in the second data store.

5 more elements

A first computing system of a first node of a first entity for ensuring privacy of a dynamic electronic document, the first node being a node of a private distributed ledger, the first computing system comprising:

one or more computer-readable storage medium storing
a first data store of the first entity that include a dynamic electronic document having state, having machine-readable instructions of a smart contract for performing permissible actions applicable to the dynamic electronic document, and having identifications of the first entity and a second entity, the first entity and the second entity having permission to access the dynamic electronic document, the dynamic electronic document being signed by the first entity using a private key of the first entity, the dynamic electronic document stored in a second data store of the second entity such that the first entity and the second entity control access to the dynamic electronic document, the first data store and the second data store being part of the private distributed ledger wherein the private distributed ledger is not a blockchain;
computer-executable instructions for controlling the computing system to;
generate, by the first computing system, a proposed change to the state of the dynamic electronic document, the proposed change identifying an output state for the dynamic electronic document and identifying an input state for the dynamic electronic document, the proposed change being signed using the private key of the first entity;
executes the machine-readable instructions of the smart contract to validate the proposed change;
send, by the first computing system, the validated proposed change to a second computing system of a second node of the second entity so that the second computing system can return to the first computing system a signed validated proposed change that is signed by a private key of the second entity, the second node being a node of the private distributed ledger;
send, by the first computing system, the signed validated proposed change to a verification service to the private distributed ledger to verify that the signed validated proposed change is signed by the first entity and the second entity and that the input state is not in a register of consumed input states maintained by the verification service, to sign the signed validated proposed change to generate a verified proposed change, and to return the verified proposed change to the first computing system;
store, by the first computing system, the verified proposed change in the first data store to record a new state for the dynamic electronic document;
and
send, by the first computing system, the verified proposed change the second computing system so that the second computing system can store the verified proposed change in the second data store;
and
one or more processors for executing the computer-executable instructions stored in the one or more computer-readable storage mediums.

9 more elements

One or more computing systems of a first node of a first entity for conducting a transaction relating to a state object, the first node being a node of a distributed ledger that is not a blockchain, the one or more computing system comprising

one or more computer-readable storage mediums for storing
the state object having state, and having identifications of the first entity and a second entity, the first entity and the second entity having permission to access the state object, the state object being electronically signed by the first entity;
a proposed transaction to change the state object, the proposed transaction identifying an output state for the state object and identifies an input state for the state object, the proposed transaction being electronically signed by an entity that proposed the transaction;
and
computer-executable instructions for controlling the one or more computing systems to;
receive a verified transaction that has been verified by a verification service, the verification service verifying by ensuring that the input state is not in a register of consumed input states maintained by the verification service and electronically signing the proposed transaction to generate a verified transaction;
and
store the verified transaction as part of the distributed ledger to record the change to the state object;
and
one or more processors for executing the computer-executable instructions stored in the one or more computer-readable storage mediums.

7 more elements

Dependencies are inferred from the claim text.

System and method for managing transactions in dynamic digital documents

Life of this patent

System and method for managing transactions in dynamic digital documents

Life of this patent

Abstract

Claims62