Data stream integrity in a tiered blockchain structure

A system comprising:

• one or more hardware processors;
• and
• a storage device storing instructions that configure the one or more hardware processors to perform operations comprising:
• receiving, by one or more servers of a network platform, machine data items from one or more networked devices, the one or more networked devices generating intermediate data in generating the machine data items;
• grouping the machine data items into time-based data groupings, the time-based data groupings comprising a full data grouping that includes a first set of the machine data items and a first intermediate dataset of the intermediate data, the time-based data groupings further comprising a current data grouping in which a second set of the machine data items are stored;
• generating a first data grouping batch hash in a first blockchain system, the first data grouping batch hash generated by combining a hash of the first set of machine data items with hashes of the first intermediate dataset, the hashes of the first intermediate dataset being further stored in a second blockchain system;
• generating hashes of a second intermediate dataset of the intermediate data in the second blockchain system, the hashes of a second intermediate dataset being stored in the second blockchain system while the current data grouping is not full;
• and
• generating a second data grouping batch hash in the first blockchain system in response to the current data grouping being full, the second data grouping batch hash generated by combining a hash of the second set of machine data items with the hashes of the second intermediate dataset.

A non-transitory machine-storage medium storing instructions that when executed by one or more hardware processors of a machine, cause the machine to perform operations comprising:

• receiving, by one or more servers of a network platform, machine data items from one or more networked devices, the one or more networked devices generating intermediate data in generating the machine data items;
• grouping the machine data items into time-based data groupings, the time-based data groupings comprising a full data grouping that includes a first set of the machine data items and a first intermediate dataset of the intermediate data, the time-based data groupings further comprising a current data grouping in which a second set of the machine data items are stored;
• generating a first data grouping batch hash in a first blockchain system, the first data grouping batch hash generated by combining a hash of the first set of machine data items with hashes of the first intermediate dataset;
• generating hashes of a second intermediate dataset of the intermediate data in a second blockchain system, the hashes of a second intermediate dataset being stored in the second blockchain system while the current data grouping is not full;
• and
• generating a second data grouping batch hash in the first blockchain system in response to the current data grouping being full, the second data grouping batch hash generated by combining a hash of the second set of machine data items with the hashes of the second intermediate dataset.