Methods and systems for recording data based on plurality of blockchain networks

1. A computer-implemented method for recording data, comprising:

in response to receiving data to be recorded, generating, by a node in a first-type blockchain network, a first-type blockchain transaction comprising the data;

transmitting, by the node in the first-type blockchain network, the first-type blockchain transaction to the first-type blockchain network;

recording, by the node in the first-type blockchain network based on a consensus algorithm, one or more first-type blockchain transactions into a first-type block;

recording, by the node in the first-type blockchain network, the first-type block on a blockchain of the first-type blockchain network;

obtaining, by a node in a second-type blockchain network, the first-type block, wherein the first-type blockchain network and the second-type blockchain network are comprised in a data recording system, and wherein the node in the first-type blockchain network and the node in the second-type blockchain network are managed by a management entity of the data recording system;

determining, by the node in the second-type blockchain network, a transaction hash of each of the one or more first-type blockchain transactions in the first-type block;

generating, by the node in the second-type blockchain network for each transaction hash, a second-type blockchain transaction comprising the transaction hash and a network identifier of the first-type blockchain network;

transmitting, by the node in the second-type blockchain network, each second-type blockchain transaction to the second-type blockchain network;

recording, by the node in the second-type blockchain network based on the consensus algorithm, one or more second-type blockchain transactions into a second-type block;

recording, by the node in the second-type blockchain network, the second-type block on a blockchain of the second-type blockchain network;

receiving, by the node in the second-type blockchain network and not by the node in the first-type blockchain network, a verification request that has been generated by a user based on a transaction hash of a to-be-verified first-type blockchain transaction; and

providing, by the node in the second-type blockchain network and in response to determining that a second-type blockchain transaction that includes the transaction hash of the to-be-verified first-type blockchain transaction has been recorded in the second-type blockchain network, an indication to the user that the to-be-verified first-type blockchain transaction has been recorded in the blockchain of the first-type blockchain network.

2. The computer-implemented method according to claim 1 , wherein the one or more first-type blockchain transactions correspond to the one or more second-type blockchain transactions, the transmitting, by the node in the second-type blockchain network, each second-type blockchain transaction to the second-type blockchain network comprises:

transmitting each of the one or more second-type blockchain transactions corresponding to each of the one or more first-type blockchain transactions based on an order of the one or more first-type blockchain transactions recorded in a first-type recording block.

3. The computer-implemented method according to claim 1 , wherein the data recording system further comprises at least one third-type blockchain network, and wherein the method further comprises:

in response to receiving data to be recorded, generating, by a node in the third-type blockchain network, a third-type blockchain transaction comprising the data;

transmitting the third-type blockchain transaction to the third-type blockchain network;

recording, by the node in the third-type blockchain network based on the consensus algorithm, one or more third-type blockchain transactions into a third-type block;

recording, by the node in the third-type blockchain network, the third-type block on a blockchain of the third-type blockchain network;

determining, by the node in the third-type blockchain network, a transaction hash of each of the one or more third-type blockchain transactions in the third-type block;

sending, by the node in the third-type blockchain network, the transaction hash of each of the one or more third-type blockchain transactions to a target node in the second-type blockchain network;

generating, by the target node for each transaction hash, a second-type blockchain transaction comprising the transaction hash; and

transmitting, by the target node, the second-type blockchain transaction corresponding to each transaction hash to the second-type blockchain network.

4. The computer-implemented method according to claim 3 , wherein sending the transaction hash of each of the one or more third-type blockchain transactions to the target node in the second-type blockchain network comprises

sending the transaction hash of each of the one or more third-type blockchain transactions to the target node in the second-type blockchain network based on an order of the one or more third-type blockchain transactions in a third-type recording block; and

wherein transmitting the second-type blockchain transaction corresponding to each transaction hash to the second-type blockchain network comprises transmitting each of the one or more second-type blockchain transactions corresponding to the transaction hash of each of the one or more second-type blockchain transactions based on an order that the transaction hash is received.

5. The computer-implemented method according to claim 3 , wherein generating the second-type blockchain transaction comprises:

generating, for each transaction hash, a second-type blockchain transaction comprising the transaction hash and a network identifier of the third-type blockchain network.

6. The computer-implemented method according to claim 1 , wherein the method further comprising:

generating, by a node in the second-type blockchain network, a second-type blockchain transaction comprising the data to be recorded; and

transmitting, by the node in the second-type blockchain network, the second-type blockchain transaction to the second-type blockchain network.

7. The computer-implemented method according to claim 1 , herein each node in the second-type blockchain network is managed by the management entity of the data recording system.

8. A non-transitory, computer-readable medium storing one or more instructions executable by a computer system to perform operations comprising:

in response to receiving data to be recorded, generating, by a node in a first-type blockchain network, a first-type blockchain transaction comprising the data;

transmitting, by the node in the first-type blockchain network, the first-type blockchain transaction to the first-type blockchain network;

recording, by the node in the first-type blockchain network based on a consensus algorithm, one or more first-type blockchain transactions into a first-type block;

recording, by the node in the first-type blockchain network, the first-type block on a blockchain of the first-type blockchain network;

obtaining, by a node in a second-type blockchain network, the first-type block, wherein the first-type blockchain network and the second-type blockchain network are comprised in a data recording system, and wherein the node in the first-type blockchain network and the node in the second-type blockchain network are managed by a management entity of the data recording system;

determining, by the node in the second-type blockchain network, a transaction hash of each of the one or more first-type blockchain transactions in the first-type block;

generating, by the node in the second-type blockchain network for each transaction hash, a second-type blockchain transaction comprising the transaction hash and a network identifier of the first-type blockchain network;

transmitting, by the node in the second-type blockchain network, each second-type blockchain transaction to the second-type blockchain network;

recording, by the node in the second-type blockchain network based on the consensus algorithm, one or more second-type blockchain transactions into a second-type block;

recording, by the node in the second-type blockchain network, the second-type block on a blockchain of the second-type blockchain network;

receiving, by the node in the second-type blockchain network and not by the node in the first-type blockchain network, a verification request that has been generated by a user based on a transaction hash of a to-be-verified first-type blockchain transaction; and

providing, by the node in the second-type blockchain network and in response to determining that a second-type blockchain transaction that includes the transaction hash of the to-be-verified first-type blockchain transaction has been recorded in the second-type blockchain network, an indication to the user that the to-be-verified first-type blockchain transaction has been recorded in the blockchain of the first-type blockchain network.

9. The non-transitory, computer-readable medium according to claim 8 , wherein the one or more first-type blockchain transactions correspond to the one or more second-type blockchain transactions, the transmitting, by the node in the second-type blockchain network, each second-type blockchain transaction to the second-type blockchain network comprises:

transmitting each of the one or more second-type blockchain transactions corresponding to each of the one or more first-type blockchain transactions based on an order of the one or more first-type blockchain transactions recorded in a first-type recording block.

10. The non-transitory, computer-readable medium according to claim 8 , wherein the data recording system further comprises at least one third-type blockchain network, and wherein the operations further comprises:

in response to receiving data to be recorded, generating, by a node in the third-type blockchain network, a third-type blockchain transaction comprising the data;

transmitting the third-type blockchain transaction to the third-type blockchain network;

recording, by the node in the third-type blockchain network based on the consensus algorithm, one or more third-type blockchain transactions into a third-type block;

recording, by the node in the third-type blockchain network, the third-type block on a blockchain of the third-type blockchain network;

determining, by the node in the third-type blockchain network, a transaction hash of each of the one or more third-type blockchain transactions in the third-type block;

sending, by the node in the third-type blockchain network, the transaction hash of each of the one or more third-type blockchain transactions to a target node in the second-type blockchain network;

generating, by the target node for each transaction hash, a second-type blockchain transaction comprising the transaction hash; and

transmitting, by the target node, the second-type blockchain transaction corresponding to each transaction hash to the second-type blockchain network.

11. The non-transitory, computer-readable medium according to claim 10 , wherein sending the transaction hash of each of the one or more third-type blockchain transactions to the target node in the second-type blockchain network comprises

sending the transaction hash of each of the one or more third-type blockchain transactions to the target node in the second-type blockchain network based on an order of the one or more third-type blockchain transactions in a third-type recording block; and

wherein the transmitting the second-type blockchain transaction corresponding to each transaction hash to the second-type blockchain network comprises transmitting each of the one or more second-type blockchain transactions corresponding to the transaction hash of each of the one or more second-type blockchain transactions based on an order that the transaction hash is received.

12. A computer-implemented system, comprising:

a first-type blockchain network;

a second-type blockchain network;

a management entity; and

one or more computer memory devices interoperably coupled with one or more computers in the first-type blockchain network and the second-type blockchain network, the one or more computer memory devices having tangible, non-transitory, machine-readable media storing one or more instructions that, when executed by the one or more computers, perform one or more operations comprising:

in response to receiving data to be recorded, generating, by a node in the first-type blockchain network, a first-type blockchain transaction comprising the data;

transmitting, by the node in the first-type blockchain network, the first-type blockchain transaction to the first-type blockchain network;

recording, by the node in the first-type blockchain network based on a consensus algorithm, one or more first-type blockchain transactions into a first-type block;

recording, by the node in the first-type blockchain network, the first-type block on a blockchain of the first-type blockchain network;

obtaining, by a node in the second-type blockchain network, the first-type block, wherein the node in the first-type blockchain network and the node in the second-type blockchain network are managed by the management entity;

determining, by the node in the second-type blockchain network, a transaction hash of each of the one or more first-type blockchain transactions in the first-type block;

generating, by the node in the second-type blockchain network for each transaction hash, a second-type blockchain transaction comprising the transaction hash and a network identifier of the first-type blockchain network;

transmitting, by the node in the second-type blockchain network, each second-type blockchain transaction to the second-type blockchain network;

recording, by the node in the second-type blockchain network based on the consensus algorithm, one or more second-type blockchain transactions into a second-type block;

recording, by the node in the second-type blockchain network, the second-type block on a blockchain of the second-type blockchain network;

receiving, by the node in the second-type blockchain network and not by the node in the first-type blockchain network, a verification request that has been generated by a user based on a transaction hash of a to-be-verified first-type blockchain transaction; and

providing, by the node in the second-type blockchain network and in response to determining that a second-type blockchain transaction that includes the transaction hash of the to-be-verified first-type blockchain transaction has been recorded in the second-type blockchain network, an indication to the user that the to-be-verified first-type blockchain transaction has been recorded in the blockchain of the first-type blockchain network.

13. The computer-implemented system according to claim 12 , wherein the one or more first-type blockchain transactions correspond to the one or more second-type blockchain transactions, the transmitting, by the node in the second-type blockchain network, each second-type blockchain transaction to the second-type blockchain network comprises:

transmitting each of the one or more second-type blockchain transactions corresponding to each of the one or more first-type blockchain transactions based on an order of the one or more first-type blockchain transactions recorded in a first-type recording block.

14. The computer-implemented system according to claim 12 , further comprises at least one third-type blockchain network, and wherein the one or more operations further comprises:

in response to receiving data to be recorded, generating, by a node in the third-type blockchain network, a third-type blockchain transaction comprising the data;

transmitting the third-type blockchain transaction to the third-type blockchain network;

recording, by the node in the third-type blockchain network based on the consensus algorithm, one or more third-type blockchain transactions into a third-type block;

recording, by the node in the third-type blockchain network, the third-type block on a blockchain of the third-type blockchain network;

determining, by the node in the third-type blockchain network, a transaction hash of each of the one or more third-type blockchain transactions in the third-type block;

sending, by the node in the third-type blockchain network, the transaction hash of each of the one or more third-type blockchain transactions to a target node in the second-type blockchain network;

generating, by the target node for each transaction hash, a second-type blockchain transaction comprising the transaction hash; and

transmitting, by the target node, the second-type blockchain transaction corresponding to each transaction hash to the second-type blockchain network.

15. The computer-implemented system according to claim 14 , wherein sending the transaction hash of each of the one or more third-type blockchain transactions to the target node in the second-type blockchain network comprises

sending the transaction hash of each of the one or more third-type blockchain transactions to the target node in the second-type blockchain network based on an order of the one or more third-type blockchain transactions in a third-type recording block; and

wherein the transmitting the second-type blockchain transaction corresponding to each transaction hash to the second-type blockchain network comprises transmitting each of the one or more second-type blockchain transactions corresponding to the transaction hash of each of the one or more second-type blockchain transactions based on an order that the transaction hash is received.

16. The computer-implemented system according to claim 14 , wherein generating the second-type blockchain transaction comprises:

generating, for each transaction hash, a second-type blockchain transaction comprising the transaction hash and a network identifier of the third-type blockchain network.

17. The computer-implemented system according to claim 12 , wherein the one or more operations further comprises:

generating, by a node in the second-type blockchain network, a second-type blockchain transaction comprising the data to be recorded; and

transmitting, by the node in the second-type blockchain network, the second-type blockchain transaction to the second-type blockchain network.

18. The computer-implemented system according to claim 12 , herein each node in the second-type blockchain network is managed by the management entity.