Blockchain generation method and system, and related device

A blockchain generation method implemented by a first node device, comprising:

• receiving first transaction information sent by a client, wherein the first transaction information comprises first basic information and first digest information about a first transaction, and the first basic information comprises transaction data and a transaction object of the first transaction;
• performing a first simulating transaction that simulates the first transaction based on the first transaction information, to generate a first endorsement result corresponding to the first transaction simulation, wherein the first endorsement result comprises a signature generated after the first simulating transaction succeeds;
• sending the first endorsement result to the client, so that the client sends the first digest information and the first endorsement result to a second node device;
• and
• receiving the first digest information sent by the second node device, the first digest information being used to generate a blockchain.

A blockchain generation method implemented by a client, comprising:

• sending transaction information about a first transaction to a first node device;
• receiving an endorsement result sent by the first node device, wherein the endorsement result is a signature generated after a simulating transaction performed by the first node device succeeds, and the simulating transaction simulates the first transaction;
• determining whether the endorsement result meets a transaction condition;
• and
• in response to the determination that the endorsement result meets the transaction condition, sending the transaction information and the endorsement result to a plurality of second node devices, so that the plurality of second node devices generates a blockchain based on the transaction information and the endorsement result, wherein the plurality of second node devices belongs to a same transaction group.

A client, comprising a memory storing a program, a transceiver, at least one processor, and a bus system, wherein the transceiver is configured to receive or send information under the control of the at least one processor, the bus system is configured to connect the memory, the transceiver, and the at least one processor, so that the memory, the transceiver, and the at least one processor communicate with each other, and the program, when executed by the at least one processor, causes the client to execute operations comprising:

• sending first transaction information to a first node device, wherein the first transaction information comprises first basic information and first digest information about a first transaction, the first transaction information instructs the first node device to perform a first simulating transaction that simulates the first transaction, and the first basic information comprises transaction data and a transaction object of the first transaction;
• receiving a first endorsement result sent by the first node device, wherein the first endorsement result comprises a signature generated after the first simulating transaction succeeds;
• determining whether the first endorsement result meets a transaction condition;
• and
• in response to the determination that the first endorsement result meets the transaction condition, sending the first digest information and the first endorsement result to a second node device, so that the second node device sends to the first node device, based on the first endorsement result, the first digest information used to generate a blockchain.