An operation method of a node device connected to a blockchain network utilizing a Proof of Work (PoW) method, the operation method comprising:
- acquiring block data newly propagated through the blockchain network;
- detecting a consensus failure condition of the PoW method, the consensus failure condition including a next block not being generated within a predetermined time period that is shorter than a timeout period specified in the PoW method;
- and
- generating a next block corresponding to the block data using a neural consensus body proof-based block generation (NCBG) process according to the consensus failure condition, the text block generated by the NCBG process having a block height at which the PoW method restarts, the block height being a non-consecutive value relative to a latest block height,
- wherein the NCBG process includes:
- extracting first validity verification data from the block data;
- acquiring neural consensus body designation information (NCDI) of the next block generated on the basis of a random consensus body proof process (RCPP) according to a verification process of the first validity verification data;
- and
- generating second validity verification data of the next block by selectively performing function units of the je device on the basis of the NCDI of the next block,
- wherein the first validity verification data includes consensus process verification data (CPVD) corresponding to the RCPP,
- wherein the next block is generated in a format usable in the blockchain network utilizing the PoW method.