Method and apparatus for writing service data into block chain and method for determining service subset

摘要

Methods, systems, and apparatus, including computer programs encoded on computer storage media, for adding transaction data into a blockchain are provided. One of the methods includes: obtaining transaction data to be added into the blockchain, assigning the transaction data into transaction subsets, and executing the transaction subsets in parallel, and storing results of the execution into the blockchain. Pieces of the transaction data having at least one of: a same transaction type or an overlapping scope of data change are assigned into a same transaction subset, and pieces of the transaction data with different transaction types and with no overlapping scope of data change are assigned into different transaction subsets.