A system stores transaction data in a ring chain architecture. A ring chain comprises blocks of data stored as a length-limited block chain in a ring buffer configuration. A block of transactions is stored on a ring chain until enough new blocks are added to overwrite the ring buffer with new blocks. The system stores multiple ring chains that update at varying frequencies. A new block on a lower frequency ring chain stores an aggregation of data from the blocks that were added to a higher frequency ring chain in the time since the previous addition of a block to the lower frequency ring chain. Thus, a system of ring chains stores progressively summarized state transition data over progressively longer time intervals while maintaining immutability of the record and reducing storage requirements.