Systems and methods for verifying data via blockchain
Methods and systems for processing a blockchain comprising a plurality of immutable sales records corresponding to sales made by agents of an entity are provided. According to certain aspects, a transaction request indicating a sale made by an agent of the entity may be received at a first node. A block including a sales record indicating the sale made by the agent may be added to a blockchain and transmitted to another node for validation. The first node may add the block to a copy of the blockchain, where the block may be identified by a hash value that references a previous block in the blockchain that includes at least one additional sales record.
1. A computer-implemented method of processing a blockchain comprising a plurality of immutable records, the blockchain maintained by a plurality of nodes connected via a network, each of the plurality of nodes maintaining a respective copy of the blockchain, the method comprising:
receiving, at a processor of a first node of the plurality of nodes, a transaction request initiated by a requesting node;
verifying the transaction request by verifying an identity of the requesting node, wherein verifying the identity of the requesting node includes:
querying, by the processor of the first node, a permissions database to determine a permission level associated with the requesting node, and
determining, based on the permission level, that the requesting node has permission to submit the transaction request;
responsive to determining that the requesting node has permission to submit the transaction request, adding a record to a new block to add to the blockchain;
transmitting, via the network by the processor of the first node, the new block to at least a second node of the plurality of nodes such that the second node updates a copy of the blockchain stored thereat to include the new block.
2. The computer-implemented method of claim 1 , wherein verifying the transaction request comprises:
accessing a consensus rule associated with the transaction request and shared by the plurality of nodes, the consensus rule indicating a set of authorized sources; and
verifying the transaction request based on determining that the requesting node is included in the set of authorized sources.
3. The computer-implemented method of claim 1 , wherein verifying the transaction request comprises:
determining, by the processor, that an existing block of the copy of the blockchain maintained by the first node indicates the identity of the requesting node.
4. The computer-implemented method of claim 1 , wherein verifying the transaction request comprises:
receiving, via the network from at least a portion of the plurality of nodes, an indication that the transaction request is verified.
5. The computer-implemented method of claim 1 , wherein verifying the transaction request comprises:
verifying that the requesting node is in good standing with the entity.
6. The computer-implemented method of claim 1 , wherein the transaction request includes a digital signature associated with the source, and wherein verifying the transaction request comprises:
authenticating the requesting node using the digital signature.
7. The computer-implemented method of claim 1 , wherein verifying the transaction request comprises:
adding the transaction request to a queue of pending transactions; and
detecting that at least one of the nodes of the plurality of nodes verified the identity of the source.
8. The computer-implemented method of claim 1 , wherein transmitting the block to at least the second node of the plurality of nodes comprises:
transmitting, via the network, the block to at least the second node, wherein the second node transmits the block to at least a third node of the plurality of nodes.
9. The computer-implemented method of claim 1 , further comprising:
generating, by the processor of the first node, a public key and a private key for the first node.
10. A system for processing a blockchain comprising a plurality of immutable records, the blockchain maintained by a plurality of nodes connected via a network, the system comprising:
a first node of the plurality of nodes, the first node configured to maintain a first copy of the blockchain;
a second node of the plurality of nodes, the second node connected to the first node via the network and configured to maintain a second copy of the blockchain;
a first processor implemented in the first node and configured to:
receive a transaction request initiated by a requesting node,
verify the transaction request by verifying an identity of the requesting node, wherein verifying the identity of the requesting node includes:
querying a permissions database to determine a permission level associated with the requesting node, and
determining, based on the permission level, that the requesting node has permission to submit the transaction request;
responsive to determining that the requesting node has permission to submit the transaction request, add a record to a new block to add to the blockchain, and
transmit, via the network, the new block to at least the second node, wherein the second node updates the second copy of the blockchain to include the new block.
11. The system of claim 10 , wherein to verify the transaction request, the first processor is configured to:
access a consensus rule associated with the transaction request and shared by the plurality of nodes, the consensus rule indicating a set of authorized sources, and
verify the transaction request based on determining that the requesting node is included in the set of authorized sources.
12. The system of claim 10 , wherein to verify the transaction request, the first processor is configured to:
determine that an existing block of the copy of the blockchain maintained by the first node indicates the identity of the requesting node.
13. The system of claim 10 , wherein to verify the transaction request, the first processor is configured to:
receive, via the network from at least a portion of the plurality of nodes, an indication that the transaction request is verified.
14. The system of claim 10 , wherein to verify the transaction request, the first processor is configured to:
verify that the requesting node is in good standing with the entity.
15. The system of claim 10 , wherein the transaction request includes a digital signature associated with the source, and wherein to verify the transaction request, the first processor is configured to:
authenticate the source of the transaction request using the digital signature.
16. The system of claim 10 , wherein to verify the transaction request, the first processor is configured to:
add the transaction request to a queue of pending transactions, and
detect that at least one of the nodes of the plurality of nodes verified the identity of the source.
17. The system of claim 10 , wherein to transmit the block to at least the second node of the plurality of nodes, the first processor is configured to:
transmit, via the network, the block to at least the second node, wherein the second node transmits the block to at least a third node of the plurality of nodes.
18. The system of claim 10 , wherein the first processor is further configured to:
generate a public key and a private key for the first node.