Abstract: An apparatus is adapted for implementing a method of creating a data chain, which can be cryptographically proven to contain valid data. The method includes creating a data chain with no elements, validating the data chain for nodes before accepting the data chain, verifying the size of close group to add the data chain, adding a data block to the data chain, removing old copies of entries from the data chain only if a chained consensus would not be broken, else maintaining the entry and marking it as deleted, validating a majority of pre-existing nodes and validating a signature of the data chain via the data chain of signed elements. The apparatus is operable to support a data communication system and provides a technical effect of making a data processing system robust against data corruption, data loss, failure in data communication synchronization and similar practical operational issues.

Abstract: An apparatus is adapted for implementing a method of creating a data chain, which can be cryptographically proven to contain valid data. The method includes creating a data chain with no elements, validating the data chain for nodes before accepting the data chain, verifying the size of close group to add the data chain, adding a data block to the data chain, removing old copies of entries from the data chain only if a chained consensus would not be broken, else maintaining the entry and marking it as deleted, validating a majority of pre-existing nodes and validating a signature of the data chain via the data chain of signed elements. The apparatus is operable to support a data communication system and provides a technical effect of making a data processing system robust against data corruption, data loss, failure in data communication synchronization and similar practical operational issues.