Method for backbone node access and blockchain system

A backbone node access method, comprising:

• receiving, by a first node in a first blockchain system, an access request of a backbone node in a second blockchain system, determining a voting node in the first blockchain system, and requesting the voting node to vote on the access request, wherein the voting node is a super node and both the first node and the backbone node are blockchain nodes, the first node is a supervisor node in the first blockchain system;
• feeding back a voting result by the voting node;
• determining, by the first node, a second node from at least one super node of the first blockchain system after determining to approve of the access request according to the voting results, and sending an anchoring message to the second node, wherein the anchoring message is used to indicate that the second node is anchored with the backbone node;
• and
• anchoring the second node with the backbone node based on the anchoring message, so that the backbone node accesses the first blockchain system, the second blockchain system becomes a slave chain system of the first blockchain system, and the first blockchain system becomes a master chain system of the second blockchain system,
• each super node in the first blockchain system has a corresponding production time period and is used for block packaging in the corresponding production time period;
• and when determining a voting node in the first blockchain system, and requesting the voting node to vote on the access request,
• the first node determines at least one super node in the first blockchain system as a voting node, queries a first super node in the first blockchain system and forwards the access request to the first super node, the first super node being a super node in the first blockchain system for block packaging in the current production period;
• the first super node votes on the access request to obtain a third voting result;
• the first super node adds the access request to a block body of the latest packaged target block, and broadcasts the target block with the access request to a second super node in the first blockchain system, the second super node being a super node in the first blockchain system other than the first super node;
• at least one second super node returns a fourth voting result for the access request to the first super node in a confirmation result for the target block;
• the first super node sends the third voting result and the fourth voting result to the first node;
• and
• when the first node determines to approve of the access request according to the obtained voting results,
• if two thirds of the third voting result and the fourth voting result indicate consent to the access request, the first node determines to approve of the access request.